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Portage Learning Anatomy & Physiology 2: Module 1 Exam - Questions And Answers
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Portage Learning Anatomy & Physiology 2: Module 1 Exam - Questions And Answers
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Portage Learning Anatomy & Physiology 2:Module 1 Exam - Questions And Answers
This is a bundle of axons found in the peripheral nervous system. Correct
Ans - nerve
This part of the autonomic system accelerates the heart beat and increases
breathing rate. Correct Ans - sympathetic nervous system
The ventral root of a nerve contains what type of neurons? Correct Ans -
motor (efferent)
This part of a neuron conducts nerve impulses towards the cell body.
Correct Ans - denderites
A neuron going to the bicep of the forearm is part of the: Correct Ans -
A. Central nervous system
B. Peripheral nervous system
C. Autonomic system
D. Somatic system
E. A&C
Correct! F. B&D
The neuron pictured, below, is best described as: Correct Ans - A)
Bipolar
B) Correct! Multipolar
C) Unipolar
D) Pseudounipolar
True or false: Neurons do not physically touch one another. Correct Ans -
True
Neurons do not physically touch. They are separated by synapses.
Describe the synthesis and storage of neurotransmitters. Correct Ans -
The neuron cell body manufactures neurotransmitters, which are stored in
secretory vesicles at the end of axon terminals.
, An afferent neuron carries information: Correct Ans - A) From the
central to the peripheral nervous system
B) Correct Answer From the peripheral to the central nervous system
C) Within the central nervous system
D) Within the peripheral nervous system
A presynaptic neuron would be found: Correct Ans - A) Correct
Answer Before the synapse
B) After the synapse
C) Inside the synapse
D) Only in the peripheral nervous system
What is the location and function of Satellite cells? Correct Ans -
Location: Peripheral nervous system (PNS)
Function: Regulation of environment of neuron cell bodies
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
Ans - No; Only peripheral system axons are capable of regeneration. The
spinal cord is in the central nervous system.
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 Ans - 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.
At rest, a neuron plasma membrane is: Correct Ans - A) 0 mV
B) +40 mV
C) Correct! Polarized (around -70mV)
D) Depolarized
Which of the following is false concerning the sodium-potassium pump?
Correct Ans - A) It maintains the resting phase of an axon.
B) For every three sodium ions pumped out, two potassium ions are pumped
in.
C) It must remain in constant operation to maintain the resting state.
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