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Welcome back to Mrs. M’s Anatomy & Physiology class!

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1 Welcome back to Mrs. M’s Anatomy & Physiology class!
Warm-Up (8/27) Which body system includes the lymph nodes? Which body system includes the skin? Which body system releases hormones? What is the smallest unit of all living things?

2 Warm-up: 8/27 Complete the following blanks: Atoms → Molecules → Cells → Tissue → _______→ Organ System → _________ What is the difference between Anatomy and Physiology? Which body system includes the kidneys?

3 Warm-up: 8/28 Which two systems are the ovaries part of?
What are the organs of the respiratory system?

4 Warm-up: 9/2 The head is _____________ to the abdomen.
Describe the “anatomical position” The thumbs are _________ to the pinkies.

5 Today’s To Do Warm-up Turn in Safety Contract (Due Tomorrow)
Turn in School Supply (Due Tuesday) Introduction to Anatomy Levels of organization and Systems Begin Chapter 1 Workbook

6 Chapter 1: The Human Body: An Orientation

7 The Human Body—An Orientation
Anatomy Study of the structure and shape of the body and its parts Observation is used to see sizes and relationships of parts © 2015 Pearson Education, Inc.

8 Anatomy—Levels of Study
Gross anatomy Large structures Easily observable © 2015 Pearson Education, Inc.

9 Mouth (oral cavity) Parotid gland Sublingual gland Tongue
Figure 14.1 The human digestive system: Alimentary canal and accessory organs. Mouth (oral cavity) Parotid gland Sublingual gland Tongue Salivary glands Submandibular gland Pharynx Esophagus Stomach Pancreas (Spleen) Liver Gallbladder Transverse colon Duodenum Descending colon Small intestine Jejunum Ascending colon Ileum Large intestine Cecum Sigmoid colon Rectum Appendix Anus Anal canal

10 Anatomy—Levels of Study
Microscopic anatomy Structures cannot be seen with the naked eye Structures can be viewed only with a microscope © 2015 Pearson Education, Inc.

11 Figure 14.4c Anatomy of the stomach.
Gastric pits Surface epithelium Gastric pit Pyloric sphincter Mucous neck cells Parietal cells Gastric gland Gastric glands Chief cells (c)

12 Figure 14.4d Anatomy of the stomach.
Pepsinogen Pepsin HCI Parietal cells Chief cells Enteroendocrine cell (d)

13 The Human Body—An Orientation
Physiology Study of how the body and its parts work or function © 2015 Pearson Education, Inc.

14 Relationship between Anatomy and Physiology
Structure determines what functions can occur If structure changes, the function must also change *Complementarity (AJP, Dr. E. Stanley Abbott) © 2015 Pearson Education, Inc.

15 © 2015 Pearson Education, Inc.

16 Levels of Structural Organization
Six levels of structural organization Atoms Cells Tissues Organs Organ systems Organisms © 2015 Pearson Education, Inc.

17 Figure 1.1 Levels of structural organization.
Slide 1 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules. Smooth muscle tissue 3 Tissue level Tissues consist of similar types of cells. Blood vessels Heart Epithelial tissue Smooth muscle tissue Blood vessel (organ) Cardio– vascular system Connective tissue 4 Organ level Organs are made up of different types of tissues. 5 Organ system level Organ systems consist of different organs that work together closely. 6 Organismal level Human organisms are made up of many organ systems.

18 Figure 1.1 Levels of structural organization.
Slide 2 Atoms Molecules 1 Chemical level Atoms combine to form molecules.

19 Figure 1.1 Levels of structural organization.
Slide 3 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules.

20 Figure 1.1 Levels of structural organization.
Slide 4 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules. Smooth muscle tissue 3 Tissue level Tissues consist of similar types of cells.

21 Figure 1.1 Levels of structural organization.
Slide 5 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules. Smooth muscle tissue 3 Tissue level Tissues consist of similar types of cells. Epithelial tissue Smooth muscle tissue Blood vessel (organ) Connective tissue 4 Organ level Organs are made up of different types of tissues.

22 Figure 1.1 Levels of structural organization.
Slide 6 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules. Smooth muscle tissue 3 Tissue level Tissues consist of similar types of cells. Blood vessels Heart Epithelial tissue Smooth muscle tissue Blood vessel (organ) Cardio– vascular system Connective tissue 4 Organ level Organs are made up of different types of tissues. 5 Organ system level Organ systems consist of different organs that work together closely.

23 Figure 1.1 Levels of structural organization.
Slide 7 Smooth muscle cell Atoms Molecules Chemical level Atoms combine to form molecules. 1 2 Cellular level Cells are made up of molecules. Smooth muscle tissue 3 Tissue level Tissues consist of similar types of cells. Blood vessels Heart Epithelial tissue Smooth muscle tissue Blood vessel (organ) Cardio– vascular system Connective tissue 4 Organ level Organs are made up of different types of tissues. 5 Organ system level Organ systems consist of different organs that work together closely. 6 Organismal level Human organisms are made up of many organ systems.

24 The study of the function of the body and its parts is called
anatomy. endocrinology. physiology. cytology. Answer: C © 2015 Pearson Education, Inc.

25 The study of the function of the body and its parts is called
anatomy. endocrinology. physiology. cytology. © 2015 Pearson Education, Inc.

26 Gross anatomy is the study of body structures
too small to be seen with the naked eye. that are large and easily observable. belonging to the intestinal tract. that are really disgusting. Answer: B © 2015 Pearson Education, Inc.

27 Gross anatomy is the study of body structures
too small to be seen with the naked eye. that are large and easily observable. belonging to the intestinal tract. that are really disgusting. © 2015 Pearson Education, Inc.

28 Organ System Overview Integumentary system
Forms the external body covering (skin) Protects deeper tissue from injury Helps regulate body temperature Location of cutaneous nerve receptors © 2015 Pearson Education, Inc.

29 Figure 1.2a The body’s organ systems.
Skin (a) Integumentary System Forms the external body covering; protects deeper tissue from injury; synthesizes vitamin D; location of cutaneous receptors (pain, pressure, etc.) and sweat and oil glands.

30 Organ System Overview Skeletal system
Consists of bones, cartilages, ligaments, and joints Supports the body Provides muscle attachment for movement Site of blood cell formation (hematopoiesis) Stores minerals © 2015 Pearson Education, Inc.

31 Figure 1.2b The body’s organ systems.
Cartilages Joint Bones (b) Skeletal System Protects and supports body organs; provides a framework the muscles use to cause movement; blood cells are formed within bones; stores minerals.

32 Organ System Overview Muscular system
Skeletal muscles contract or shorten Produces movement of bones © 2015 Pearson Education, Inc.

33 Figure 1.2c The body’s organ systems.
Skeletal muscles (c) Muscular System Allows manipulation of the environment, locomotion, and facial expression; maintains posture; produces heat.

34 Organ System Overview Nervous system Fast-acting control system
Consists of brain, spinal cord, nerves, and sensory receptors Responds to internal and external change Sends messages via nerve impulses to central nervous system Central nervous system activates effectors (muscles and glands) © 2015 Pearson Education, Inc.

35 Figure 1.2d The body’s organ systems.
Brain Sensory receptor Spinal cord Nerves (d) Nervous System Fast-acting control system of the body; responds to internal and external changes by activating appropriate muscles and glands.

36 Organ System Overview Endocrine system Endocrine glands include:
Pituitary gland Thyroid and parathyroids Adrenal glands Thymus Pancreas Pineal gland Ovaries (females) and testes (males) © 2015 Pearson Education, Inc.

37 Organ System Overview Endocrine system Secretes regulatory hormones
Growth Reproduction Metabolism © 2015 Pearson Education, Inc.

38 Figure 1.2e The body’s organ systems.
Pineal gland Pituitary gland Thyroid gland (parathyroid glands on posterior aspect) Thymus gland Adrenal glands Pancreas Testis (male) Ovary (female) (e) Endocrine System Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use by body cells.

39 Organ System Overview Cardiovascular system
Includes heart and blood vessels Heart pumps blood Vessels transport blood to tissues Transports materials in body via blood pumped by heart Oxygen and carbon dioxide Nutrients Wastes © 2015 Pearson Education, Inc.

40 Figure 1.2f The body’s organ systems.
Heart Blood vessels (f) Cardiovascular System Blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc.; the heart pumps blood.

41 Organ System Overview Lymphatic system
Includes lymphatic vessels, lymph nodes, and lymphoid organs Returns leaked fluids back to blood vessels Cleanses the blood Involved in immunity © 2015 Pearson Education, Inc.

42 Figure 1.2g The body’s organ systems.
Thoracic duct Lymph nodes Lymphatic vessels (g) Lymphatic System Picks up fluid leaked from blood vessels and returns it to blood; disposes of debris in the lymphatic stream; houses white blood cells involved in immunity.

43 Organ System Overview Respiratory system
Includes the nasal passages, pharynx, larynx, trachea, bronchi, and lungs Supplies blood with oxygen Removes carbon dioxide © 2015 Pearson Education, Inc.

44 Figure 1.2h The body’s organ systems.
Nasal cavity Pharynx Larynx Trachea Bronchus Left lung (h) Respiratory System Keeps blood constantly supplied with oxygen and removes carbon dioxide; the gaseous exchanges occur through the walls of the air sacs of the lungs.

45 Organ System Overview Digestive system
Includes the oral cavity, esophagus, stomach, small and large intestines, and accessory organs Breaks down food Allows for nutrient absorption into blood Eliminates indigestible material as feces © 2015 Pearson Education, Inc.

46 Figure 1.2i The body’s organ systems.
Oral cavity Esophagus Stomach Small intestine Large intestine Rectum Anus (i) Digestive System Breaks food down into absorbable units that enter the blood for distribution to body cells; indigestible foodstuffs are eliminated as feces.

47 Organ System Overview Urinary system
Includes the kidneys, ureters, urinary bladder, and urethra Eliminates nitrogenous wastes Maintains acid-base balance Regulates water and electrolytes © 2015 Pearson Education, Inc.

48 Figure 1.2j The body’s organ systems.
Kidney Ureter Urinary bladder Urethra (j) Urinary System Eliminates nitrogen-containing wastes from the body; regulates water, electrolyte, and acid-base balance of the blood.

49 Organ System Overview Reproductive system
For males, includes the testes, scrotum, penis, accessory glands, and duct system Testes produce sperm Duct system carries sperm to exterior For females, includes the ovaries, uterine tubes, uterus, and vagina Ovaries produce eggs Uterus provides site of development for fetus © 2015 Pearson Education, Inc.

50 Figure 1.2k-l The body’s organ systems.
Mammary glands (in breasts) Prostate gland Seminal vesicles Uterine tube Ovary Uterus Vas deferens Penis Testis Vagina Scrotum (k) Male Reproductive System (l) Female Reproductive System Overall function of the reproductive system is production of offspring. Testes produce sperm and male sex hormone; ducts and glands aid in delivery of viable sperm to the female reproductive tract. Ovaries produce eggs and female sex hormones; remaining structures serve as sites for fertilization and development of the fetus. Mammary glands of female breast produce milk to nourish the newborn.

51 The endocrine system is
the body’s fastest-acting control center. responsible for producing hormones. responsible for returning fluid to the circulatory system. the external covering of the body. Answer: B © 2015 Pearson Education, Inc.

52 The endocrine system is
the body’s fastest-acting control center. responsible for producing hormones. responsible for returning fluid to the circulatory system. the external covering of the body. © 2015 Pearson Education, Inc.

53 Production of blood cells (hematopoiesis) occurs in the ______ system.
endocrine integumentary skeletal cardiovasular Answer: C © 2015 Pearson Education, Inc.

54 Production of blood cells (hematopoiesis) occurs in the ______ system.
endocrine integumentary skeletal cardiovasular © 2015 Pearson Education, Inc.

55 Maintaining Life: Necessary Life Functions
Maintain boundaries Movement Locomotion Movement of substances Responsiveness Ability to sense changes (irritability) and react (responsiveness) ** Digestion Breakdown and absorption of nutrients © 2015 Pearson Education, Inc.

56 Necessary Life Functions
Metabolism—chemical reactions within the body Break down complex molecules into smaller ones Build larger molecules from smaller ones Produces energy Regulated by hormones Excretion Eliminates waste from metabolic reactions Wastes may be removed in urine or feces © 2015 Pearson Education, Inc.

57 Necessary Life Functions
Reproduction Occurs on cellular level or organismal level Produces future generation Growth Increases cell size and number of cells © 2015 Pearson Education, Inc.

58 Survival Needs Nutrients Oxygen Chemicals for energy and cell building
Includes carbohydrates, proteins, lipids, vitamins, and minerals Oxygen Required for chemical reactions © 2015 Pearson Education, Inc.

59 Survival Needs Water Stable body temperature Atmospheric pressure
60 to 80 percent of body weight Most abundant chemical in the human body Provides for metabolic reactions Stable body temperature 37°C (98°F) Atmospheric pressure Must be appropriate for gas exchange © 2015 Pearson Education, Inc.

60 Food Blood Heart Interstitial fluid Feces Urine
Figure 1.3 Examples of selected interrelationships among body organ systems. Digestive system Takes in nutrients, breaks them down, and eliminates unabsorbed matter (feces) Respiratory system Takes in oxygen and eliminates carbon dioxide Food O2 CO2 Cardiovascular system Via the blood, distributes oxygen and nutrients to all body cells and delivers wastes and carbon dioxide to disposal organs Blood CO2 O2 Urinary system Eliminates nitrogen- containing wastes and excess ions Heart Nutrients Interstitial fluid Nutrients and wastes pass between blood and cells via the interstitial fluid Integumentary system Protects the body as a whole from the external environment Feces Urine

61 So what exactly is disease? What do all diseases have in common?

62 Homeostasis Homeostasis—maintenance of a stable internal environment
A dynamic state of equilibrium Necessary for normal body functioning and to sustain life Homeostatic imbalance A disturbance in homeostasis results in disease © 2015 Pearson Education, Inc.

63 Figure 1.4 The elements of a homeostatic control system.
Slide 1 Input: Information is sent along afferent pathway to control center. 3 Output: Information is sent along efferent pathway effector. 4 Control Center Afferent pathway Efferent pathway Receptor Effector Receptor detects change. 2 Response of effector feeds back to reduce the effect of stimulus and returns variable to homeostatic level. 5 Stimulus produces change in variable. 1 IMBALANCE VARIABLE (in homeostasis) IMBALANCE

64 Figure 1.4 The elements of a homeostatic control system.
Slide 2 1 Stimulus produces change in variable. IMBALANCE VARIABLE (in homeostasis) IMBALANCE

65 Figure 1.4 The elements of a homeostatic control system.
Slide 3 Receptor Receptor detects change. 2 Stimulus produces change in variable. 1 IMBALANCE VARIABLE (in homeostasis) IMBALANCE

66 Figure 1.4 The elements of a homeostatic control system.
Slide 4 Input: Information is sent along afferent pathway to control center. 3 Control Center Afferent pathway Receptor Receptor detects change. 2 1 Stimulus produces change in variable. IMBALANCE VARIABLE (in homeostasis) IMBALANCE

67 Figure 1.4 The elements of a homeostatic control system.
Slide 5 Input: Information is sent along afferent pathway to control center. 3 Output: Information is sent along efferent pathway effector. 4 Control Center Afferent pathway Efferent pathway Receptor Effector Receptor detects change. 2 1 Stimulus produces change in variable. IMBALANCE VARIABLE (in homeostasis) IMBALANCE

68 Figure 1.4 The elements of a homeostatic control system.
Slide 6 Input: Information is sent along afferent pathway to control center. 3 Output: Information is sent along efferent pathway effector. 4 Control Center Afferent pathway Efferent pathway Receptor Effector Receptor detects change. 2 Response of effector feeds back to reduce the effect of stimulus and returns variable to homeostatic level. 5 Stimulus produces change in variable. 1 IMBALANCE VARIABLE (in homeostasis) IMBALANCE

69 Maintaining Homeostasis
The body communicates through neural and hormonal control systems Receptor Responds to changes in the environment (stimuli) Sends information to control center along an afferent pathway © 2015 Pearson Education, Inc.

70 Maintaining Homeostasis
Control center Determines set point Analyzes information Determines appropriate response Effector Provides a means for response to the stimulus Information flows from control center to effector along efferent pathway © 2015 Pearson Education, Inc.

71 Feedback Mechanisms Negative feedback
Includes most homeostatic control mechanisms Shuts off the original stimulus or reduces its intensity Works like a household thermostat © 2015 Pearson Education, Inc.

72 Feedback Mechanisms Positive feedback
Increases the original stimulus to push the variable farther Reaction occurs at a faster rate In the body positive feedback occurs in blood clotting and during the birth of a baby © 2015 Pearson Education, Inc.

73 © 2015 Pearson Education, Inc.

74 The maintenance of a stable internal environment is termed
hematopoiesis. homeostasis. negative feedback mechanisms. positive feedback mechanisms. Answer: B © 2015 Pearson Education, Inc.

75 The maintenance of a stable internal environment is termed
hematopoiesis. homeostasis. negative feedback mechanisms. positive feedback mechanisms. © 2015 Pearson Education, Inc.

76 Which of the following is an example of positive feedback mechanism?
A blood clot forms after a chef cuts her finger. As calcium level rises in the blood, the excess calcium attaches itself to bone. A runner completes a race, and her heartbeat slows to a normal level. A soccer game begins, and the players’ respirations rise because of exercise exertion. Answer: A © 2015 Pearson Education, Inc.

77 Which of the following is an example of positive feedback mechanism?
A blood clot forms after a chef cuts her finger. As calcium level rises in the blood, the excess calcium attaches itself to bone. A runner completes a race, and her heartbeat slows to a normal level. A soccer game begins, and the players’ respirations rise because of exercise exertion. © 2015 Pearson Education, Inc.

78 This system picks up fluid leaked from blood vessels and returns it to the blood.
integumentary endocrine cardiovascular lymphatic Answer: D © 2015 Pearson Education, Inc.

79 This system picks up fluid leaked from blood vessels and returns it to the blood.
integumentary endocrine cardiovascular lymphatic © 2015 Pearson Education, Inc.

80 The Language of Anatomy
Special terminology is used to prevent misunderstanding Exact terms are used for: Position Direction Regions Structures © 2015 Pearson Education, Inc.

81 The Language of Anatomy
Anatomical position Standard body position used to avoid confusion Terminology refers to this position regardless of actual body position Stand erect, feet parallel, arms hanging at the sides with palms facing forward © 2015 Pearson Education, Inc.

82 Figure 1.5a Regional terms used to designate specific body areas.
Cephalic Frontal Upper limb Upper limb Orbital Acromial Nasal Buccal Deltoid Oral Brachial (arm) Mental Antecubital Cervical Thoracic Antebrachial (forearm) Sternal Axillary Carpal (wrist) Abdominal Umbilical Manus (hand) Digital Pelvic Inguinal (groin) Lower limb Coxal (hip) Pubic (genital) Femoral (thigh) Patellar Crural (leg) KEY: Thorax Fibular Abdomen Pedal (foot) Tarsal (ankle) Digital (a) Anterior/Ventral

83 Directional Terms Directional terms
Explains location of one body structure in relation to another © 2015 Pearson Education, Inc.

84 Directional Terms Superior (cranial or cephalad): toward the head or upper part of a structure or the body; above Inferior (caudal): away from the head or toward the lower part of a structure or the body; below © 2015 Pearson Education, Inc.

85 Directional Terms Ventral (anterior): toward or at the front of the body; in front of Dorsal (posterior): toward or at the backside of the body; behind © 2015 Pearson Education, Inc.

86 Table 1.1 Orientation and Directional Terms (1 of 3).

87 Directional Terms Medial: toward or at the midline of the body; on the inner side of Lateral: away from the midline of the body; on the outer side of Intermediate: between a more medial and a more lateral structure © 2015 Pearson Education, Inc.

88 Directional Terms Proximal: close to the origin of the body part or point of attachment to a limb to the body trunk Distal: farther from the origin of a body part or the point of attachment of a limb to the body trunk © 2015 Pearson Education, Inc.

89 Table 1.1 Orientation and Directional Terms (2 of 3).

90 Directional Terms Superficial (external): toward or at the body surface Deep (internal): away from the body surface; more internal © 2015 Pearson Education, Inc.

91 Table 1.1 Orientation and Directional Terms (3 of 3).

92 In the anatomical position, the body is
lying face up. lying face down. erect with feet parallel and arms at the sides with palms forward. erect with feet parallel and arms hanging at the sides with palms facing backward. Answer: C © 2015 Pearson Education, Inc.

93 In the anatomical position, the body is
lying face up. lying face down. erect with feet parallel and arms at the sides with palms forward. erect with feet parallel and arms hanging at the sides with palms facing backward. © 2015 Pearson Education, Inc.

94 The elbow is ____ to the wrist.
inferior lateral proximal distal Answer: C © 2015 Pearson Education, Inc.

95 The elbow is ____ to the wrist.
inferior lateral proximal distal © 2015 Pearson Education, Inc.

96 This inguinal region is commonly called the
navel. groin. elbow. armpit. Answer: B © 2015 Pearson Education, Inc.

97 This inguinal region is commonly called the
navel. groin. elbow. armpit. © 2015 Pearson Education, Inc.

98 Figure 1.5a Regional terms used to designate specific body areas.
Cephalic Frontal Upper limb Upper limb Orbital Acromial Nasal Buccal Deltoid Oral Brachial (arm) Mental Antecubital Cervical Thoracic Antebrachial (forearm) Sternal Axillary Carpal (wrist) Abdominal Umbilical Manus (hand) Digital Pelvic Inguinal (groin) Lower limb Coxal (hip) Pubic (genital) Femoral (thigh) Patellar Crural (leg) KEY: Thorax Fibular Abdomen Pedal (foot) Tarsal (ankle) Digital (a) Anterior/Ventral

99 Figure 1.5b Regional terms used to designate specific body areas.
Cephalic Upper limb Upper limb Occipital (back of head) Acromial Cervical Brachial (arm) Olecranal Back (dorsal) Scapular Antebrachial (forearm) Vertebral Lumbar Sacral Manus (hand) Gluteal Digital Femoral (thigh) Popliteal Sural (calf) KEY: Fibular Back (Dorsum) Pedal (foot) Calcaneal Plantar (b) Posterior/Dorsal

100 The antebrachial region can be found on the
skull. arm. leg. ankle. Answer: B © 2015 Pearson Education, Inc.

101 The antebrachial region can be found on the
skull. arm. leg. ankle. © 2015 Pearson Education, Inc.

102 Body Planes and Sections
Sections are cuts along imaginary lines known as planes Three types of planes or sections exist as right angles to one another © 2015 Pearson Education, Inc.

103 Body Planes and Sections
A sagittal section divides the body (or organ) into left and right parts A median, or midsagittal, section divides the body (or organ) into equal left and right parts A frontal, or coronal, section divides the body (or organ) into anterior and posterior parts A transverse, or cross, section divides the body (or organ) into superior and inferior parts © 2015 Pearson Education, Inc.

104 (a) Median (midsagittal) (b) Frontal (coronal) plane
Figure 1.6 The anatomical position and planes of the body—median, frontal, and transverse with corresponding MRI scans. (a) Median (midsagittal) (b) Frontal (coronal) plane (c) Transverse plane Vertebral column Right lung Heart Left lung Liver Aorta Pancreas Spleen Rectum Intestines Liver Stomach Spleen Subcutaneous fat layer Spinal cord

105 The popliteal surface is the
skull. back of the knee. front of the knee. back of the heel. Answer: B © 2015 Pearson Education, Inc.

106 The popliteal surface is the
skull. back of the knee. front of the knee. back of the heel. © 2015 Pearson Education, Inc.

107 The sagittal plane cuts the body or organ into
anterior and posterior portions. right and left portions. equal right and left portions. superior and inferior portions. Answer: B © 2015 Pearson Education, Inc.

108 The sagittal plane cuts the body or organ into
anterior and posterior portions. right and left portions. equal right and left portions. superior and inferior portions. © 2015 Pearson Education, Inc.

109 The axillary region is ______________ to the sternal region.
distal proximal medial lateral Answer: D © 2015 Pearson Education, Inc.

110 The axillary region is ______________ to the sternal region.
distal proximal medial lateral © 2015 Pearson Education, Inc.

111 Body Cavities Two body cavities
Dorsal Ventral Body cavities provide varying degrees of protection to organs within them © 2015 Pearson Education, Inc.

112 Cranial cavity Thoracic cavity Diaphragm Abdominal cavity Spinal
Figure 1.7 Body cavities. Cranial cavity Thoracic cavity Diaphragm Abdominal cavity Spinal cavity Abdominopelvic cavity Pelvic cavity KEY: Dorsal body cavity Ventral body cavity

113 Body Cavities Dorsal body cavity has two subdivisions Cranial cavity
Houses the brain Protected by the skull Spinal cavity Houses the spinal cord Protected by the vertebrae © 2015 Pearson Education, Inc.

114 Body Cavities Ventral body cavity has two subdivisions separated by the diaphragm Thoracic cavity Abdominopelvic cavity © 2015 Pearson Education, Inc.

115 Body Cavities Thoracic cavity Cavity superior to the diaphragm
Houses heart, lungs, and other organs Mediastinum, the central region, houses heart, trachea, and other organs © 2015 Pearson Education, Inc.

116 Body Cavities Abdominopelvic cavity Cavity inferior to the diaphragm
Superior abdominal cavity contains the stomach, liver, and other organs Protected only by trunk muscles Inferior pelvic cavity contains reproductive organs, bladder, and rectum Protected somewhat by bony pelvis No physical structure separates abdominal from pelvic cavities © 2015 Pearson Education, Inc.

117 Body Cavities Abdominopelvic cavity subdivisions Four quadrants
Nine regions © 2015 Pearson Education, Inc.

118 Figure 1.8 The four abdominopelvic quadrants.
Right upper quadrant (RUQ) Left upper quadrant (LUQ) Right lower quadrant (RLQ) Left lower quadrant (LLQ)

119 Figure 1.9 The nine abdominopelvic regions.
Diaphragm Liver Stomach Gallbladder Transverse colon of large intestine Right hypochondriac region Left hypochondriac region Epigastric region Ascending colon of large intestine Descending colon of large intestine Right lumbar region Left lumbar region Umbilical region Small intestine Initial part of sigmoid colon Hypo- gastric (pubic) region Cecum Right iliac (inguinal) region Left iliac (inguinal) region Appendix Urinary bladder (a) Nine regions delineated by four planes (b) Anterior view of the nine regions showing the superficial organs

120 Body Cavities Other body cavities include: Oral and digestive cavities
Nasal cavity Orbital cavities Middle ear cavities © 2015 Pearson Education, Inc.

121 Mark was tackled in a football game and sustained an injury to his antebrachial region; where is his injury located? hip forearm wrist leg Answer: B © 2015 Pearson Education, Inc.

122 Mark was tackled in a football game and sustained an injury to his antebrachial region; where is his injury located? hip forearm wrist leg © 2015 Pearson Education, Inc.

123 Which of the following activities represents an anatomical study?
making a section through the heart to observe its interior testing the pituitary for hormone function studying how the muscles contract studying how the nerves conduct electrical impulses Answer: A © 2015 Pearson Education, Inc.

124 Which of the following activities represents an anatomical study?
making a section through the heart to observe its interior testing the pituitary for hormone function studying how the muscles contract studying how the nerves conduct electrical impulses © 2015 Pearson Education, Inc.

125 MRI PET scan CT scan sonogram
This imaging method requires the injection of short-lived radioisotopes that have been tagged to substances such as glucose. MRI PET scan CT scan sonogram Answer: B © 2015 Pearson Education, Inc.

126 MRI PET scan CT scan sonogram
This imaging method requires the injection of short-lived radioisotopes that have been tagged to substances such as glucose. MRI PET scan CT scan sonogram © 2015 Pearson Education, Inc.

127 Workbook After today’s notes, you should be able to complete:
Pages 1-6 completely Page 13 (#20) Page 14 (#22) Page 15 (#1) Page 16 (#10) The workbook is due in its entirety on Wednesday, 9/3.

128 Remember Tomorrow: Tuesday: Wednesday: Safety Contract Due
School Supply Due Wear closed shoes Wednesday: Meet in B122 Chapter 1 Workbook is Due Safety Quiz


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