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Portage Learning Anatomy & Physiology 2 Module 1 Exam Questions And Answers
Question 1: This is a bundle of axons found in the peripheral
nervous system.
CORRECT ANSWER : nerve
Question 2: This part of the autonomic system accelerates the
heart beat and increases breathing rate.
CORRECT ANSWER : sympathetic nervous system
Question 3: The ventral root of a nerve contains what type of
neurons?
CORRECT ANSWER : motor (efferent)
Question 4: This part of a neuron conducts nerve impulses
towards the cell body.
CORRECT ANSWER : denderites
Question 5: A neuron going to the bicep of the forearm is part of
the:
- Central nervous system
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- Peripheral nervous system
- Autonomic system
- Somatic system
- A&C
- B&D
CORRECT ANSWER : F. B&D
Question 6: The neuron pictured, below, is best described as:
- Bipolar
- Multipolar
- Unipolar
- Pseudounipolar
CORRECT ANSWER : B) Multipolar
Question 7: True or false: Neurons do not physically touch one another.
CORRECT ANSWER : True
Neurons do not physically touch. They are separated by synapses.
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Question 8: Describe the synthesis and storage of
neurotransmitters.
CORRECT ANSWER : The neuron cell body manufactures
neurotransmitters, which are stored in secretory vesicles at the end of axon terminals.
Question 9: An afferent neuron carries information:
- From the central to the peripheral nervous system
- From the peripheral to the central nervous system
- Within the central nervous system
- Within the peripheral nervous system
CORRECT ANSWER : B) From the peripheral to the central
nervous system
Question 10: A presynaptic neuron would be found:
- Before the synapse
- After the synapse
- Inside the synapse
- Only in the peripheral nervous system
CORRECT ANSWER : A) Before the synapse
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Question 11: What is the location and function of Satellite cells?
CORRECT ANSWER : Location: Peripheral nervous system (PNS)
Function: Regulation of environment of neuron cell bodies
Question 12: A patient's spinal cord was severed in a car
accident. Would the patient be expected to regrow axons in their spinal cord? Why or why not?
CORRECT ANSWER : No; Only peripheral system axons are
capable of regeneration. The spinal cord is in the central nervous system.
Question 13: Name and describe what is occurring in the neuron
cell membrane in section 4 of the diagram. Include the charge of the membrane during this phase.
CORRECT ANSWER : Afterpolarization (Hyperpolarization)
Potassium gates are slow to close and there is an undershoot of the potential.The charge drops below -70mV and then returns to -70mV once at resting state again.
Question 14: At rest, a neuron plasma membrane is:
