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Anat/Phys #2-3


Levels of Structural Organization A. Atom B. Molecules C. Cells D. Tissues E. Organs F. Organ Systems G. Organism
III. Organ SystemsA. Integumentary System 1. Skin, hair, nails, sweat glands, and sebaceous (oil) glands. 2. Regulates Body Temp. 3. Sensory receptors.
B. Skeletal System 1. Bones, ligaments, cartilages. 2. Provide framework & protective shields. 3. Int. tissues produce blood cells & organic salts.
C. Muscle System 1. Muscles 2. Contract to provide movement 3. Maintain body posture 4. Main source- body heat.
D. Nervous System 1. Brain, spinal cord, nerves, and sense organs. 2. Nerves communicate w/ each other as well as the muscles and glands. 3. Specific nerve cells-specific functions.
E. Endocrine System 1. Pituitary, thyroid, para-thyroid, adrenal glands, pancreas, ovaries, testes, pineal gland, thymus gland. 2. All glands secrete hormones. 3. particular hormones affect target tissue.
F. Cardiovascular System 1. Heart, arteries, veins, capillaries, and blood. 2. Heart pumps blood. 3. Blood moves gases, nutrients, hormones, and wastes.
G. Lymphatic System 1. Lymphatic vessels, lymph fluid, lymph nodes, thymus gland, and spleen. 2. Carry some tissue fluid back to blood and certain fatty substances away the digestive organs. 3. Contains lymphocytes that defend the body against infections.
H. Digestive System 1. Mouth, Tongue, teeth, salivary gland, pharynx, esophagus, stomach, liver, gallbladder, pancreas, s & l. intestine. 2. Receives food, break them into simpler forms to be absorbed. 3. Also produces some hormones.
I. Respiratory System 1. Nasal cavity, pharynx, larynx, trachea, bronchi, and lungs. 2. Exchanges gases between the blood and air.
J. Urinary System 1. Kidney, ureters, urinary blood, and urethra. 2. Kidneys remove wastes from blood, help maintain water and electrolyte balance.
K. Reproductive System- Male Scrotum, testes, epididymides, vasa derentia, seminal vesicles, prostate gland, bulbourethral glands, penis and urethra. 2. Produce offspring.
Reproductive System- Female 1. Ovaries, uterus, uterine tube, vagina, clitoris, vulva. 2. Produce offspring.
Created by: deschaj