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BIO 201 Test 1 (chapters 1-4) Solutions
Anatomy - Answers✓✓studies structure of body parts and how they relate to one another
Gross Anatomy - Answers✓✓study of large structures
surface anatomy - Answers✓✓studies structures as they relate to the surface
cytology - Answers✓✓study of cells
histology - Answers✓✓study of tissues
embryology - Answers✓✓studies developmental changes that occur before birth
chemical level - Answers✓✓atoms form to combine molecules
tissues - Answers✓✓groups of similar cells that have a common function
cellular level - Answers✓✓cells are made up of molecules
organ level - Answers✓✓organs are made up of different types of tissues
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25/11/2024 09:27AM
homeostasis - Answers✓✓point of dynamic (changing) equilibrium; body's ability to maintain a
relatively stable internal environment despite ever changing conditions
set point - Answers✓✓level/range of "normal" for whatever variable is being considered
ex: blood glucose levels
receptor - Answers✓✓sensor that monitors environment and responds to changes by sending
information to the control center
control center - Answers✓✓determines set point; analyzes input and determines appropriate
response
effector - Answers✓✓provides means for control center's response to the stimulus
What is the correct order of the components of the loops for homeostasis? -
Answers✓✓stimulus, receptor, afferent pathway, control center, efferent pathway, effector,
response
Negative feedback - Answers✓✓once stimulus occurs, and the control center and effector
return the body to the normal position, stimuli stop as to not over-fix the problem
ex: blood glucose-once glucose levels return to normal, the stimulus for either raising blood
glucose or lowering it ends
Negative feedback is the most common occurrance of homeostatic balancing