Ch 1. 3, overview of organ systems Flashcards Preview

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Flashcards in Ch 1. 3, overview of organ systems Deck (11):

integumentary system

external body covering, protects deeper tissues from injury
house pain, pressure, receptors and sweat/oil glands


skeletal system

joints and bones
protects and supports body organs
provides framework for muscles
blood cells formed within bones, bones store muscles


muscular system

allows manipulation of the environment
locomotion and facial expression
maintains posture and produces heat


nervous system

brain, spinal cord, nerves
fast-acting control system of body
responds to internal/external changes by activating appropriate muscles and glands


endoctrine system

glands secrete hormones that regulate processes such as growth, reproductions and nutrient use (metabolism) by body cells


cardiovascular system

heart, blood vessels
blood vessels transport blood, which carries O2 and CO2, nutrients, waste etc
the heart pumps blood


lymphatic system

spleen, lymphatic vessels, lymph nodes
picks up fluid leaked from blood vessels and returns it into blood
dispenses of debris in the lymphatic stream
houses WBCs involved in immunity


respiratory system

lung, larynx, trachea, bronchus
keeps blood constantly supplied with O2 and removes CO2
the gaseous exchanges occur through the walls of the lung air sacs


digestive system

breaks down food into absorbable units that enter the blood for distribution in body cells
indigestible foodstuffs eliminated as feces


urinary system

kidney, urethra, bladder, ureter
eliminates nitrogenous wastes from the body
regulates water, electrolyte and acid base balance of the body


reproductive system

male: scrorum, prostrate gland, penis, testes, ductus deferens
female: ovary, uterus, vagina, uterine tube, mammary glands