Atoms combined to form molecules
cells (smallest known life forms) made up of molecules
tissues are groups of cells
Organs are made up of different types of tissues (two or more)
organ system level
consist of different organs that work together closely to create the organismal level
an organism is a living individual; all the parts of the human body functioning together constitue the total organism
the organ system that forms a protective covering on the outside of the body, skin
Controls metabolic activities of the body
lymph fluid, lymoh vessels, lymph nodes, spleen, tonsils, thymus gland
Takes in oxygen and eliminates carbon dioxide
the process by which wastes are removed from the body
A structure that monitors the body's internal functions and conditions; detects changes in the body's internal environment
analyzes the information recieved from the receptor and decides upon the best course of action
positive feedback mechanisms
rare in the body; usually increase the original stimulus and push the variable farther from the original value
Beyond normal range - most diseases (organs = less efficient & capable of maintaining stability)
between medial and lateral
area where thigh meets body trunk; groin
posterior surface of head
posterior knee area
the posterior surface of lower leg; the calf
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