ࡱ> UWT  bjbjVV 4N<<8CCCWWWW,W"tL[[[[***h"j"j"j"j"j"j"9$&j"C *  j"[[5";;; 8[C[h"; h";;!+"[0YcW!T""0"!'YH'"'C"T*"L;dx***j"j"***"    '********* : Chapter 1: Introduction to Human Anatomy and Physiology Anatomy: Structure of Body Parts. Morphology Physiology: Function of body parts. What they do and how. *A & P are very closely related - structure closely related to function Characteristics of Life Movement - self initiated change in position, motion of internal parts Responsiveness (irritability) - Ability to sense changes within, or around the organism and react to them Growth - increase in body size Reproduction - Parents produce offspring / producing new individuals Respiration - Obtaining oxygen (O2), using it to release energy from food substances, and getting rid of wastes Digestion - Chemically changing (breaking down) food substances, and getting rid of wastes Absorption - Passage of Digested products (food substances) through membranes and into body fluids Circulation - Movement of substances throughout the body Assimilation - Changing absorbed substances into chemically different substances Excretion - Removal of wastes METABOLISM:: All physical and chemical changes occuring in an organism Needs: Water, food, oxygen, heat, pressure - all must be regulated HOMEOSTASIS: Tendency of the body to maintain a stable, balanced internal environment. Accomplished through self regulating adjustments Levels of Organization (from simplest to most complex) Atoms --> Molecules --> Macromolecules --> Organelles --> Cells --> Tissues --> Organs --> Organ Systems --> Organism *A group (mass) of cells working together to carry out certain common functions form a tissue *A group of tissues working together to carry out certain common functions form an organ *A group of organs........ General Organization of the Body: Axial Portion - head, neck, trunk Appendicular Portion - arms & legs 1. Several body cavities 2. Layers of membranes within cavities 3. Variety of organs and organ systems within cavities (VISCERA = internal organs. "Visceral organs") Body Cavities (see p.9) A. Dorsal Cavity ---Cranial Cavity - Brain, Spinal Cavity - Spinal Cord B. Ventral Cavity 1. Thoracic Cavity - right and left compartment separated by mediastinum. Heart , lungs, esophagus, trachea 2. Abdominopelvic Cavity ---Abdominal cavity - stomach, spleen, liver, gall bladder, small intestine ---Pelvic cavity - part of the large intestine, urinary bladder, reproductive organs *Thoracic and abdominopelvic cavity separated by DIAPHRAGM *The organs within the cavities are surrounded by a type of two layered membrane called the SEROUS MEMBRANE HYPERLINK "\\\\StaffDirectories\\Folders\\smuskopf\\My Dropbox\\A&P\\ch1 (intro)\\images\\body_cavities2.jpg"Body Cavities Image HYPERLINK "\\\\StaffDirectories\\Folders\\smuskopf\\My Dropbox\\A&P\\ch1 (intro)\\images\\BodyCavity_label.jpg"Body Cavities Label 1 HYPERLINK "\\\\StaffDirectories\\Folders\\smuskopf\\My Dropbox\\A&P\\ch1 (intro)\\images\\BodyCavity2_label.jpg"Body Cavities Label 2*The outer layer of each membrane is called the PARIETAL layer and forms a "lining" against the inner wall of each cavity *The inner layer of each membrane covers the surface of each organ and is called the VISCERAL layer Membranes: 1. Pleura (or pleural membrane) - surrounds the lungs --outer layer = parietal pleura --inner layer = visceral pleura 2. Pericardium (or pericardial membrane) - surrounds the heart --outer layer = parietal pericardium --inner layer = visceral pericardium 3. Peritoneum (or peritoneal membrane) - surrounds all the organs within the abdominopelvic cavity --outer layer = parietal peritoneum --inner layer = visceral peritoneum *Between the layers of each membrane is a lubricating fluid which is called SEROUS FLUID ORGAN SYSTEMS1. IntegumentaryBody covering. Skin, hair, nails, sweat glands. Function: protect underlying tissues and regulate body temperature2. SkeletalBones, ligaments, cartilage Function: Support, movement, protection, and production of blood cells3. MuscularMuscles of the body Function: Movement, maintenance of posture, production of body heat4. NervousBrain, spinal cord, nerves through the body Function: Communication throughout body, mental activities, maintaining homeostasis 5. EndocrineDuctless glands = pituitary, adrenal, thyroid, parathyroid, pancreas, ovaries, testes, thymus, pineal glands Function: Secretion of hormones, communication between body parts6. Digestive Mouth, teeth, pharynx, esophagus, stomach, small intestine, large intestine, liver, gall bladder, and many glands including the pancreas Function: Breakdown of food substances into simpler forms that can be absorbed (digestion).7. Circulatory Heart, blood vessels, blood. Function: Transports materials throughout the body. *Lymphatic system usually included with the circulatory system8. Urinary Kidneys, ureters, urinary bladder, urethra Function: Removes ("filters") wastes from the blood and helps maintain the body's water and electrolyte balance9. ReproductiveReproductive organs, primarily the ovaries (females) and testes (males) Function: Produce special reproductive cells for reproduction*HYPERLINK "\\\\StaffDirectories\\Folders\\smuskopf\\My Dropbox\\A&P\\ch1 (intro)\\images\\organ_systems_blanks.jpg"Assignment: Complete the Organ Systems Concept Map Anatomical Terminology Anatomical Position = standing erect, face forward, arms at side, palms facing forward *Study and learn the following terms which are used to describe relative positions -- location of one body part with respect to another (p.13 -14) 1. Superior5. Medial9. Superficial2. Inferior6. Lateral10. Deep3. Anterior7. Proximal4. Posterior8. Distal*Learn and understand the following body sections ("slices") through the body Sagittal | Coronal | Transverse * Body Regions describe each body region (see handout) be prepared to take a quiz over the regions (page 16-17) Ex. Buccal, cephalic, brachial. Book Assignment: A. Answers questions 1 & 2 at the top of p 4 B. Briefly describe each of the Characteristics of Life C. Answer questions 1 & 2 on the left side of p. 7 D. Starting with atoms, list the levels of organization in order of complexity E. Page 10 - questions 1, 2, & 4 F. Page 13 - 1 & 2 G. 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