BIOL 2220: Neurophysiology Exam Questions Correct Answers New Update (A+ Pass)
A stimulus is called a stressor when it causes a change in ____. - Answers - homeostasis
3 functions of nervous system - Answers - sense change
interpret change
respond to change
The CNS receives all _______...
BIOL 2220: Neurophysiology Exam
Questions Correct Answers New
Update (A+ Pass)
A stimulus is called a stressor when it causes a change in ____. - Answers -✔✔
homeostasis
3 functions of nervous system - Answers -✔✔ sense change
interpret change
respond to change
The CNS receives all _______ and initiates all ______. - Answers -✔✔ sensations
actions
The PNS are ______ of the CNS. - Answers -✔✔ extensions
-cranial and spinal nerves
The PNS connect the CNS to ____ or ____. - Answers -✔✔ receptors
effector organs (muscles or glands)
2 divisions of the PNS - Answers -✔✔ afferent
efferent
The afferent division of the PNS carries messages from the _____ to _____. - Answers
-✔✔ PNS
CNS
The sensory division of the PNS is... - Answers -✔✔ the afferent division
The efferent division of the PNS carries messages from the ____ to _____. - Answers -
✔✔ CNS
PNS
(motor)
Efferent subdivisions - Answers -✔✔ somatic nervous system (SNS
autonomic nervous system (ANS)
The SNS consist of motor neurons that enervate _____. - Answers -✔✔ skeletal
muscle
, -voluntary
The ANS consist of motor neurons that enervate ______. - Answers -✔✔ cardiac
muscle, smooth muscle, and glands
-involuntary
Autonomic nervous system subdivisions - Answers -✔✔ sympathetic
parasympathetic
The ANS subdivisions both enervate... - Answers -✔✔ the same things (dual
enervation)
Fight or flight refers to the ____. - Answers -✔✔ sympathetic subdivision of the ANS
Rest and digest refers to the ____. - Answers -✔✔ parasympathetic subdivision of the
ANS
The functional and structural cells of the CNS - Answers -✔✔ neurons
_____ supports and protects neurons. - Answers -✔✔ neuroglia
3 characteristics of neurons - Answers -✔✔ longevity
lose ability to divide
high metabolic rate
Neurons require a lot of ____ and ___ to make energy. - Answers -✔✔ oxygen/glucose
Other names for cell body of a neuron - Answers -✔✔ soma, perikaryon
Perikaryon components in a neuron - Answers -✔✔ -chromatic substance (nil bodies)
-neurofibrils
-lipofuscin
The chromatic substance in the perikaryon is a specialized ______. - Answers -✔✔
rough ER
What are the proteins made by the chromatic substance in a neuron used for? -
Answers -✔✔ neuron regeneration and growth in the PNS
Do CNS neurons regenerate? - Answers -✔✔ NO
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