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Introduction To Anatomy & Physiology

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Presentation on theme: "Introduction To Anatomy & Physiology"— Presentation transcript:

1 Introduction To Anatomy & Physiology
Characteristics of Living Things The Sciences of Anatomy & Physiology Levels of Organization Introduction to Organ Systems Homeostasis & System Integration Regions of the Human Body Sectional Planes & Anatomical Directions Body Cavities

2 Introduction Characteristics of Living Things
The Sciences of Anatomy & Physiology Levels of Organization 2

3 Learning Objectives Describe the basic functions of living organisms
Define anatomy & physiology & list several subdisciplines of each Identify the major levels of organization in living organisms from the simplest to the most complex Identify the major levels of organization in living organisms from the simplest to the most complex 3

4 Characteristics Of Living Things
Ordered Structure Response to Stimuli Growth and Development Reproduction Movement Metabolic Activity

5 Ordered Structure

6 Responsiveness

7 Growth & Differentiation

8 Reproduction Second Step First Step

9 Movement

10 Metabolism & Excretion

11 Metabolism The sum of all biochemical processes within the human body. Anabolism: The synthesis of complex organic compounds from simpler precursors. Requires energy. Endergonic Catabolism: The breakdown of complex organic compounds into simpler components. Releases energy. Exergonic

12 Subdisciplines of Anatomy & Physiology
Microscopic Anatomy Gross Anatomy Physiology Cell Physiology Special Physiology Systemic Physiology Pathological Physiology

13 Anatomical Disciplines
Microscopic Anatomy: Cytology: Study of cell structure. Ex: muscle cell. Histology: Study of tissue structure. Ex: muscle tissue – muscle cells; satellite cells; nerve cells; etc.

14 Anatomical Disciplines
Gross Anatomy: Surface Anatomy: Study of general form & superficial markings. Ex: tooth alignment, body contour, distribution of hair. Regional Anatomy: Study of specific body areas. Ex: head; foot; abdomen; etc.

15 Anatomical Disciplines
Gross Anatomy: Systemic Anatomy: Study of organ systems: Ex: cardiovascular system; urinary system; respiratory system. Developmental Anatomy: Study of form changes between conception & physical maturity Ex: embryonic development; fetal development; sexual development.

16 Physiological Disciplines
Cell Physiology: Study of chemical/molecular processes within cells & chemical interaction between cells. Ex: stem cell research; oncology research. Special Physiology: Study of the physiology of specific organs. Ex: cardiac physiology; renal physiology; gastric physiology.

17 Physiological Disciplines
Systemic Physiology: Study of the physiology of specific organ systems. Ex: cardiovascular physiology; respiratory physiology; reproductive physiology. Pathological Physiology: Study of the effects of diseases on organ and/or organ system functions. Ex: tuberculosis; malaria; influenza; AIDS.

18 Levels Of Organization
Subatomic Atomic Molecular Organelle Cellular Tissue Organ Organ System Organism

19 Atomic Structure Nucleus: Energy Levels: protons: p+ neutrons: n0
Proton / positive charge / plus sign Atomic Structure Nucleus: protons: p+ neutrons: n0 Energy Levels: electrons: e- orbitals Neutron / neutral charge/ no sign Electron / negative charge / minus sign 19

20 Atomic Level: Atoms are elements with specific properties
Ex: C, H, O, N

21 Molecular Level: Molecules are combinations of atoms
Ex: Actin

22 Organelle Level: Organelles are made up of different molecules
Myosin Ex: Sarcomere

23 Cellular Level: Cells are composed of various organelles
Ex: Cardiocyte

24 Tissue Level: Tissues are composed of several cell types

25 Organ Level: Organs are composed of various tissue types
(Ch 5-19)

26 Organ System Level: Organ systems are composed of various organs
(Ch 5-12) (Ch 13-19)

27 Organism Level: Organisms are composed of several organ systems
I sure hope this dude is planning on taking a break soon!!

28 Introduction to Body Systems
Integumentary System Skeletal & Muscular Systems Nervous & Endocrine Systems Cardiovascular & Lymphatic Systems Respiratory System Digestive & Urinary Systems Reproductive System

29 Learning Objectives List 11 organ system divisions of the human body
Identify the major component organs of each organ system Discuss the major functions of each organ system

30 Body System Overview Major System Organs Primary System Functions

31 Integumentary System Ch 5 SKIN

32 Integumentary System PROTECTION Against Environmental Hazards; Helps Control Body Temperature

33 Skeletal System Ch 6 BONES

34 SUPPORT; Protects Tissues; Stores Minerals; Forms Blood;
Skeletal System SUPPORT; Protects Tissues; Stores Minerals; Forms Blood; LOCOMOTION

35 Muscular System Ch 7 MUSCLES

36 Movement; Support; Produces Heat
Muscular System Movement; Support; Produces Heat

37 Nervous System Ch 8 – 9

38 To Stimuli; COORDINATES Other Organ Systems
Nervous System Immediate RESPONSE To Stimuli; COORDINATES Other Organ Systems

39 Endocrine System Ch 10

40 Directs Long-term Responses Of Other Organ Systems
Endocrine System Directs Long-term Responses Of Other Organ Systems COORDINATION & CONTROL

41 Cardiovascular System
Cardiovascular System Ch 11 – 13

42 Cardiovascular System
TRANSPORT Of Cells & Dissolved Materials: Nutrients, Wastes, Gases

43 Lymphatic System & Immunity
Ch 14

44 Lymphatic System H2O REGULATION & IMMUNITY

45 Respiratory System Ch 15

46 GAS EXCHANGE btw Air & Blood
Respiratory System GAS EXCHANGE btw Air & Blood

47 Digestive System Ch 16 – 17

48 ABSORPTION Of Nutrients
Digestive System Food PROCESSING & ABSORPTION Of Nutrients

49 Urinary System Ch 18

50 Of Waste, Excess H2O, & Salts
Urinary System EXCRETION Of Waste, Excess H2O, & Salts

51 Reproductive System Ch 19

52 PERPETUATION OF THE SPECIES Produces Sex Cells (Sperm) & Hormones
Reproductive System PERPETUATION OF THE SPECIES Produces Sex Cells (Sperm) & Hormones

53 PERPETUATION OF THE SPECIES Produces Sex Cells (Eggs) & Hormones
Reproductive System PERPETUATION OF THE SPECIES Produces Sex Cells (Eggs) & Hormones

54 System Integration 54

55 So until next time, Adios amoebas!
55

56 Homeostasis & System Integration
Negative Feedback Positive Feedback

57 Learning Objectives Explain the concept of homeostasis and its significance to living things Describe how positive and negative feedback are involved in homeostatic regulation

58 Homeostasis The steady-state physiological condition of a body
The automatic tendency to maintain constant internal conditions despite changes in the external environment Maintained by feedback mechanisms – especially feedback inhibition 58

59 Homeostasis: A Regulatory Process
59

60 Negative Feedback Mechanism & Homeostasis
60

61 BLOOD LIVER GLYCOGEN C6H12O6 Control of Blood Sugar Pancreas β Cells
insulin diet LIVER GLYCOGEN BLOOD C6H12O6 fast Pancreas α Cells glucagon 61

62 Regulatory Mechanisms
Negative feedback Feedback inhibition: increasing amounts of an end product in a chemical synthesis pathway causes the reaction to slow down or stop Positive feedback Increasing amounts of an end product in a chemical synthesis pathway causes the reaction to speed up 62

63 Negative Feedback An anabolic biosynthetic pathway produces a chemical product. The product interacts negatively with a catalytic enzyme in the pathway. As more product is produced, synthesis of product is reduced. Note: less product = more production of product. More product = less production of product. 63

64 Positive Feedback An anabolic biosynthetic pathway produces a chemical product. The product interacts positively with a catalytic enzyme in the pathway. As more product is produced, synthesis of product is increased. Note: less product = less production of product. More product = more production of product. 64

65 Positive Feedback Mechanism & Homeostasis
65

66 Reference Frames & Anatomical Terminology
Superficial Anatomy: Anatomical Landmarks & Body Regions Sectional Anatomy: Dissection Planes & Body Sections Body Cavities Anatomical Directions

67 Learning Objectives Use anatomical terms to describe body regions
Use anatomical terms to describe body sections & relative positions Identify the major body cavities and their subdivisions

68 Anatomical Terminology
Many students already know: Facial Nasal Oral Pectoral Abdominal Carpal Femoral Pelvic Pubic Mammary face nose mouth chest abdomen/stomach wrist thigh above genital region genital region breast

69 Anatomical Terminology
All students should know: Previous list…..+ Cranial Buccal Mental Cervical Thoracic Axillary Brachial Antebrachial top of head cheek chin neck chest armpit upper arm lower arm

70 Anatomical Terminology
All students should know: Previous list…..+ Digital Phalangeal Dorsal Lumbar Gluteal Crural Sural Tarsal fingers or toes finger or toe parts back (upper) lower back buttocks lower leg (front) lower leg (calf) ankle

71 Anatomical Terminology
All students should know: Previous list…..+ Cephalic Frontal Inguinal Manual Palmar Pedal Plantar Calcaneal head forehead groin hand palm foot sole heel

72 Anterior Anatomical Landmarks Note the Anatomical Position
Body Regions Anterior Anatomical Landmarks Note the Anatomical Position

73 Posterior Anatomical Landmarks Note the Anatomical Position
Body Regions Posterior Anatomical Landmarks Note the Anatomical Position

74 Abdominalpelvic Quadrants

75 So until next time, Adios amoebas!
75

76 Sectional Anatomy Sectional Planes Sagittal Planes:
Coronal plane: usually referencing the head Sagittal Planes: Midsagittal (shown) Parasagittal (not shown) Sectional Planes

77 Sectional Anatomy Sectional Planes

78 Anatomical Directions

79 Anatomical Directions
Superficial Anatomical Directions Anatomical Directions Deep

80 Anatomical Directions
Parietal Anatomical Directions Anatomical Directions Visceral

81 Anatomical Directions
Cortical Anatomical Directions Anatomical Directions Medullary

82 Body Cavities Body Cavities 82

83 Body Cavities Body Cavities 83

84 Body Cavity Relationships
84

85 So until next time, Adios amoebas!


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