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Introduction to Human Anatomy & Physiology

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Presentation on theme: "Introduction to Human Anatomy & Physiology"— Presentation transcript:

1 Introduction to Human Anatomy & Physiology
Terminology and Divisions start with career stuff…go to wiki and use college board info to further examine careers

2 Anatomy & Physiology Anatomy = Physiology = Structure vs function

3 Organization of the Human Body
Axial: Contains body cavities Appendicular: Extremities

4 Body Cavities & Viscera
Body Cavities: Contain and protect viscera Axial Portion: Two Major Cavities Dorsal Cavity Ventral Cavity

5 Dorsal Cavity: Posterior
Cranial Cavity = Contains Brain Vertebral Cavity = Contains Spinal Cord

6 Ventral Cavity: Anterior
Thoracic Cavity = Trachea, Bronchi, Heart, Lungs, Esophagus, Thymus Gland Heart (Pericardial Cavity) Lungs (Pleural Cavity) Separated by… Abdominal Cavity= Stomach, small intestines, liver, pancreas, spleen, gallbladder, upper large int., kidneys Pelvic Cavity = Lower large intestines, bladder, reproductive organs Separated by….diaphragm Viscera = organs

7 Organ Systems & Applications in Sports Medicine
Integumentary - Cardiovascular Skeletal - Lymphatic Muscular - Respiratory Nervous Urinary Endocrine - Reproductive Digestive

8 Organ Systems: Integumentary
Structures: Hair Nails Skin Sweat & Sebaceous Glands Functions: Protection Temperature Regulation Sensation

9 Organ Systems: Skeletal
Structures: Bones Cartilage Joints Ligaments Functions: Framework Muscle Attachment Protection Blood Cell Production

10 Organ Systems: Muscular
Structures: Muscles Tendons Functions: Movement Maintain Posture Heat Production

11 Organ Systems: Nervous
Structures: Brain Spinal Cord Nerves Functions: Sends impulses Allows for motor/sensory function

12 Organ Systems: Cardiovascular
Structures: Heart Blood vessels Blood Functions Pumps blood O2 transport Waste removal

13 When Referring to a Part of the Human Body…
Anatomical Position Standardized method of observing the body when referencing anatomical structures Standing Erect Facing Forward Upper Limbs at Sides Palms Forward

14 Terms of Relative Position
Describe location of a body part in respect to another Superior/Inferior: Above or below Anterior/Posterior: Front or back Medial/Lateral: proximity to midline Proximal/Distal: proximity to trunk or axial skeleton Bilateral/Ipsilateral: both sides/same side Contralateral: opposite side Superficial/Deep: proximity to surface

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16 Anatomical Terminology Lying Down
Supine: Face up or palms up - Lying on your back Prone: Face down or palms down Lying on your stomach Implications for injuries? Cervical spine:

17 Body Sections Sagittal: cuts body in half lengthwise (right
and left portions) Transverse: cuts body in half horizontally (top and bottom portions) Coronal: cuts body into front and back portions How would this be useful in medicine?

18 Case Scenario Athlete comes into the athletic training room complaining of medial knee pain. What do you think the injury is? The reality is…you should have no idea

19 Assessing an Injury: HOPS Method
History: Ask patient ?’s to find out what happened Observation: What you see… body language, swelling, deformity, discoloration, compare bilaterally Palpation: “Feeling” or “Touching” Could notice… Special Tests: Determine what specific structures are injured: range of motion, muscle testing, stress tests of ligaments, functional tests, etc. History is very subjective: THE KEY to evaluating an athlete Sign: OBJECTIVE something you can see, hear, feel or smell (low pulse, swelling, discoloration, bleeding, deformity, etc.) Symptom: SUBJECTIVE: informaiton provided by the patient: bluryr vision, ringing in ears, fatigue, dizzy, nausea, headachea, pain, stabbing, throbbing, etc. OPS: are objective: NOTICE leavitt game, girl walks up to me..what do you need, blood pooring down both legs Observe for: swelling, deformity, echysmosis, symmetry, bilateral comparison, skin tone, way they move, discharge from nose or ears, way they hold their body, etc. Palpate: touching and feeling the body: start away and start gentle: feel for skin temp crepitus, pt tenderness, bulgre, fracture, spasm, pulse, divot Special Tests: Range of motion, muscle testing, stress tests of ligaments,, neurological testing, functional testing

20 History: What should we ask?
What happened? (Mechanism) When did it happen? (Acute vs. Chronic) What type of pain is it? (radiating/burning, etc.) - Is there a history of injury to that area - Sound or sensation at time of injury - Specific location of pain - Extent of pain (0-10) Activities that increase/decrease pain Did you keep participating? Impact on daily activities/sport

21 History: What happened?
Mechanism of Injury: (MOI) force which resulted in the injury (push or pull acting on the body) Yield Point: Elastic limit---injured tissue structures Axial: Force along long axis of structure (directed at trunk) Compressive: Squeezing/Crushing force Tensile: Pulling force Shear: Sliding against object or body part

22 History: How long has it been hurting?
When specifically did it occur? -Acute vs. Chronic Acute: Rapid onset/One likely cause Chronic: Long onset/duration, many potential contributing factors - Insidious vs. Immediate onset Examples? Chronic injuries can persist for months or years Insidious onset = comes on slowly, no obvious symtpmos or cause

23 History: What type of pain is it?
Somatic: Arises from skin, ligament, muscle or bone Visceral: Pain from a disease or injury to organ Will cause other systemic symptoms Referred: Pain perceived at a different location than site of injury Radiating: Pain from injury to nerve---pain moves along nerve pathway---”tingling, numbness, burning”

24 Case Scenario: Medial Knee Pain?
Athlete comes into the physician’s office complaining of medial knee pain. Indicates injury occurred yesterday at practice Was hit in the inside portion of the knee with a baseball during practice No history of injury No tingling or numbness, no pop, snap, or crack Minimal swelling Able to walk, sore to run, Sore to touch Pain is a 2/10 Athlete comes into the physician’s office complaining of medial knee pain. Indicates injury occurred yesterday at practice Was running around 3rd base, stopped quickly and turned to run back Felt an immediate “pop” No history of injury Moderate swelling medially Could not continue participating Was carried off the field Pain is a 7/10

25 Other Considerations Indications: A type of treatment that is appropriate for an injury Contraindications: A type of treatment that is NOT appropriate for an injury Examples?

26 Anatomic Properties of Skin
First layer of defense/Has 3 layers Most Superficial = Epidermis Keratinocytes = skin cells Provide a barrier Constant sloughing Inner Layer = Dermis Collagen & Elastin Proteins Contains blood vessels and nerves Sebaceous Glands Sweat Glands Arrector pili muscle Layer DEEP to dermis = Subcutaneous Fat: Conserve Heat/Shape Damage to dermal layer vs epidermal layer? Epidermis: slough off 9 lbs of dead skin cells a year, tens of thousands of cells every days, complete shedding about every 2 weeks, just deep to surface cells are new keratinocytes Collagen = abundant protein in body (ligaments, tendons, skin, cartilage): gives structure and stability or shape (think collagen injections) Elastin: protein gives elasticity or stretch: return to normal length after being stretched: teens vs grammy (not a whole lot of bounce back): elastin production ceases following adolescence Epi = on top of/above Epidermins: melanin, hair, nails, sebaceous and sweat glands: constantly shedding dead cells(have keratinocytes or skin cells): new cell growth and dead cell sloughing up occur at the same pace so you never don’t have an outer layer of skin, in areas wehre skin is rubbed or pressed regularly you develop calluses (thickened areas): like guitar players Dermis: thicker Sebaceous glands, next to hair follicles, secrete sebum, which is a oily matter to lubricate skin and hair: keeps skin water proof and soft Sebum: most abundant on face, upper neck and chest, prod slows into 20’s…if trapped in pores = acne Pimples: bacteria from clogged pores, immune system triggers inflammation = pimple Sweat glands: cooling mechanism: more sweat = more efficient at cooling body (abundant on forehead, neck and back) High humidity (moisture in air) body can’t cool properly because the sweat can’t evaporate Arrector pili: contracts with fear and cold, animals use to puff themselves up and it creates a layer of air between skin and hair to keep them warm

27 Skin Injury Classification
Abrasion: Shearing force where skin is scraped against a rough surface Chafing: Epidermal irritation from pressure or friction Incision: Split in skin with smooth edges Laceration: Irregular tear in skin Puncture: Penetration of skin/tissues Avulsion: Separation of skin from source Abrasions cause loss of epidermis and sometimes dermis: nerve endings exposed: painful, bleeding may or may not occur: clean with saline solution, don’t scrub Chafing: inner thigh: hydrocortisone cream or petroleum: wear spandex: Nipples: common area in men (wearing shirts with rubberized logos) Laceration: more likely to sever arteries or nerves Puncture: small entry site but may be very deep, issue of bleeding and infection Avulsion: completely removed from source: can have avulsion fx

28 Skin Injuries and Treatment
Blister: Repeated shearing force in one or more directions over epidermal layer of skin Blood can build up if between dermal and epidermal layers Care? Regular blister: can cause fluid buildup in epidermal layer of skin: leave epidermal roof intact to prevent infection Can puncture with a lacerating device, push fluid out, leave epidermal roof to prevent infection: dead cells doesn’t hurt

29 General Skin Injury Care
Irrigate with water/saline DON’T use hydrogen peroxide or (dilute) Use topical antibiotic once a day Keep wound moist----healing---scar? Avoid scab formation---DON’T PICK Sutures/dermabonding must be done w/in 24 hours Hydrogen peroxide does not protect healthy tissue---it kills it and prevents new cell growth


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