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Anatomy 101

TermDefinition
anatomy study of strucure
physiology the study of function
cytology the study of cells of the body
histology the study of tissues
Name the structural hierarchy of organization simplest to most complex chemical->cellular->tissue->organ->organ system->organism
homeostasis ability to maintain stable internal conditions with outside changes ex: circadian rhythms
boundary maintenance internal environment remains distinct from the external environment surrounding it
positive feedback loop the result or response enhances the original stimulus so that the response is accelerated ex: labor contractions and blood clotting
negative feedback loop the output shuts off the original effect of the stimulus or reduces its intensity, prevent sudden severe changes within the body ex: the control of blood sugar by insulin, regulate heart rate, blood pressure, the rate and depth of breathing
8 characteristics of living organisms boundary maintenance, digestion, excretion, growth, metabolism, movement, reproduction, irritability (responsiveness)
5 requirements for life pressure, stable temperature, nutrients, oxygen, water
3 components of control mechanisms affector(sensor), integrator(decision maker),effector(actor)
atom the building blocks of elements
molecule the smallest unit resulting from the chemical bonding of two or more atoms
monosaccharide simple sugars, single chain or single ring structures containing from three to seven carbon atoms
polysaccharide polymers of simple sugars linked together by dehydration synthesis
triglycerides neutral fats, found chiefly in fatty tissue where they provide insulation and reserve body fuel, known as fats when solid or oils when liquid
peptide bond long chains of amino acids joined together by dehydration synthesis
ATP (adenosine triphosphate) the primary energy transferring molecule in cells and it provides a form of energy that is immediately usable by all body cells
DNA (deoxyribonucleic acid) replicates itself before a cell divides ensuring genetic information in the descendant cells is identical and provides basic instructions for building every protein in the body
Created by: Jbuckner7
 

 



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