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Unformatted text preview: tes indigestible foodstuffs as feces Organ Systems of the Body
Organ Systems of the Body Urinary system Composed of kidneys, ureters, urinary bladder, and urethra Eliminates nitrogenous wastes from the body Regulates water, electrolyte, and pH balance of the blood Organ Systems of the Body
Organ Systems of the Body Male reproductive system Composed of prostate gland, penis, testes, scrotum, and ductus deferens Main function is the production of offspring Testes produce sperm and male sex hormones Ducts and glands deliver sperm to the female reproductive tract Organ Systems of the Body
Organ Systems of the Body Female reproductive system Composed of mammary glands, ovaries, uterine tubes, uterus, and vagina Main function is the production of offspring Ovaries produce eggs and female sex hormones Remaining structures serve as sites for fertilization and development of the fetus Mammary glands produce milk to nourish the newborn Organ System Organ System Interrelationships
The integumentary system protects the body from the external environment Digestive and respiratory systems, in contact with the external environment, take in nutrients and oxygen Organ System Organ System Interrelationships
Nutrients and oxygen are distributed by the blood Metabolic wastes are eliminated by the urinary and respiratory systems Necessary Life Functions I
Necessary Life Functions I Maintaining boundaries – the internal environment remains distinct from the external Cellular level – accomplished by plasma membranes Organism level – accomplished by the skin
Movement – locomotion, propulsion (peristalsis), and contractility Responsiveness – ability to sense changes in the environment and respond to them
Digestion – breakdown of ingested fo...
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- Fall '07