Portage Learning
BIOD 152
Final Exam Prep Material
2025/2026
Verified Questions and Answers
A+ Grades Guarantee
,1. This is a bundle of axons found in the peripheral Nerve
nervous system.
2. This part of the autonomic system increases di- Parasympathetic
gestion.
3. The dorsal root of a nerve contains what type of Sensory (afferent)
neurons?
4. This part of a neuron conducts nerve impulses Axon
away from the cell body.
5. A neuron going to the bicep of the forearm is F. B&D
part of the:
A. central nervous system
B. peripheral nervous system
C. Autonomic system
D. Somatic system
E. A&C
F. B&D
6. The neuron pictured, below, is best described B. Multipolar
as:
A. Bipolar
B. Multipolar
C. Unipolar
D. Pseudounipolar
7. True or false: Neurons do not physically touch True
one another.
8. Describe the synthesis and storage of neuro- The neuron cell body manufac-
transmitters. tures neurotransmitters, which are
, stored in secretory vesicles at the
end of axon terminals
9. An efferent neuron carries information: A. From the central to the peripher-
A. From the central to the peripheral nervous al nervous system
system
B. From the peripheral to the central nervous
system
C. Within the central nervous system
D. Within the peripheral nervous system
10. A postsynaptic neuron would be found: B. after the synapse
A. before the synapse
B. after the synapse
C. inside the synapse
D. Only in the central nervous system
11. What is the location and function of Satellite Location: peripheral nervous sys-
cells? tem (PNS)
Function: Regulation of environ-
ment of neuron cell bodies
12. A patient's spinal cord was severed in a car acci- No, only the peripheral system ax-
dent. Would the patient be expected to regrow ons are capable of regeneration.
axons in their spinal cord? Why or why not? The spinal cord is the central ner-
vous system
13. Name and describe what is occurring in the neu- This is phase 4: afterpolarization
ron cell membrane in section 4 of the diagram. (hyperpolarization), the potassium
Include the charge of the membrane during this gates are slow to clse and that re-
phase. sults in an undershoot of the po-
tential, the voltage will drop below
, -70mV and the return to the restign
state beings.
14. At rest, a neuron plasma membrane is: A. -70 mV
A. -70 mV
B. +40 mV
C. Hyperpolarized
D. Depolarized
15. Which of the following is false concerning the D. The overall effect is a negative
sodium-potassium pump? charge on the outside of the mem-
A. it maintains the resting phase of an axon brane
B. For every three sodium ions pumped out, two
potassium ions are pumped in
C. it must remain in constant operation to main-
tain the resting state
D. The overall effect is a negative charge on the
outside of the membrane
16. True or false: A sensory neuron is signaling False, there is no variation in the
the body of extreme pain. This means that the strength of action potentials. (It is
strength of the action potential is greater than an all-or-nothing response). There
usual. Explain your reasoning is variation in the number and fre-
quency of neurons firing
17. Which of the following statements is false con- A. Sodium ions release from the
cerning the neuromuscular junction? presynaptic motor neuron
A. Sodium ions release from the presynaptic mo-
BIOD 152
Final Exam Prep Material
2025/2026
Verified Questions and Answers
A+ Grades Guarantee
,1. This is a bundle of axons found in the peripheral Nerve
nervous system.
2. This part of the autonomic system increases di- Parasympathetic
gestion.
3. The dorsal root of a nerve contains what type of Sensory (afferent)
neurons?
4. This part of a neuron conducts nerve impulses Axon
away from the cell body.
5. A neuron going to the bicep of the forearm is F. B&D
part of the:
A. central nervous system
B. peripheral nervous system
C. Autonomic system
D. Somatic system
E. A&C
F. B&D
6. The neuron pictured, below, is best described B. Multipolar
as:
A. Bipolar
B. Multipolar
C. Unipolar
D. Pseudounipolar
7. True or false: Neurons do not physically touch True
one another.
8. Describe the synthesis and storage of neuro- The neuron cell body manufac-
transmitters. tures neurotransmitters, which are
, stored in secretory vesicles at the
end of axon terminals
9. An efferent neuron carries information: A. From the central to the peripher-
A. From the central to the peripheral nervous al nervous system
system
B. From the peripheral to the central nervous
system
C. Within the central nervous system
D. Within the peripheral nervous system
10. A postsynaptic neuron would be found: B. after the synapse
A. before the synapse
B. after the synapse
C. inside the synapse
D. Only in the central nervous system
11. What is the location and function of Satellite Location: peripheral nervous sys-
cells? tem (PNS)
Function: Regulation of environ-
ment of neuron cell bodies
12. A patient's spinal cord was severed in a car acci- No, only the peripheral system ax-
dent. Would the patient be expected to regrow ons are capable of regeneration.
axons in their spinal cord? Why or why not? The spinal cord is the central ner-
vous system
13. Name and describe what is occurring in the neu- This is phase 4: afterpolarization
ron cell membrane in section 4 of the diagram. (hyperpolarization), the potassium
Include the charge of the membrane during this gates are slow to clse and that re-
phase. sults in an undershoot of the po-
tential, the voltage will drop below
, -70mV and the return to the restign
state beings.
14. At rest, a neuron plasma membrane is: A. -70 mV
A. -70 mV
B. +40 mV
C. Hyperpolarized
D. Depolarized
15. Which of the following is false concerning the D. The overall effect is a negative
sodium-potassium pump? charge on the outside of the mem-
A. it maintains the resting phase of an axon brane
B. For every three sodium ions pumped out, two
potassium ions are pumped in
C. it must remain in constant operation to main-
tain the resting state
D. The overall effect is a negative charge on the
outside of the membrane
16. True or false: A sensory neuron is signaling False, there is no variation in the
the body of extreme pain. This means that the strength of action potentials. (It is
strength of the action potential is greater than an all-or-nothing response). There
usual. Explain your reasoning is variation in the number and fre-
quency of neurons firing
17. Which of the following statements is false con- A. Sodium ions release from the
cerning the neuromuscular junction? presynaptic motor neuron
A. Sodium ions release from the presynaptic mo-
