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Anatomy 101

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
anatomy   study of strucure  
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physiology   the study of function  
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cytology   the study of cells of the body  
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histology   the study of tissues  
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Name the structural hierarchy of organization   simplest to most complex chemical->cellular->tissue->organ->organ system->organism  
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homeostasis   ability to maintain stable internal conditions with outside changes ex: circadian rhythms  
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boundary maintenance   internal environment remains distinct from the external environment surrounding it  
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positive feedback loop   the result or response enhances the original stimulus so that the response is accelerated ex: labor contractions and blood clotting  
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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  
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8 characteristics of living organisms   boundary maintenance, digestion, excretion, growth, metabolism, movement, reproduction, irritability (responsiveness)  
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5 requirements for life   pressure, stable temperature, nutrients, oxygen, water  
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3 components of control mechanisms   affector(sensor), integrator(decision maker),effector(actor)  
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atom   the building blocks of elements  
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molecule   the smallest unit resulting from the chemical bonding of two or more atoms  
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monosaccharide   simple sugars, single chain or single ring structures containing from three to seven carbon atoms  
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polysaccharide   polymers of simple sugars linked together by dehydration synthesis  
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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  
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peptide bond   long chains of amino acids joined together by dehydration synthesis  
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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  
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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  
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Created by: Jbuckner7
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