Nero Anatomy Multiple Choice Questions And Answers

11. The cell body of most neurons–
1. cannot divide in the adult
2. is the main site of protein synthesis in the neuron
3. is the site of the cell nucleus
4. contains synaptic vesicles
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.

12. The myelin sheath is–
1. produced within the CNS by oligodendrocytes
2. produced within the peripheral nervous system by Schwann cells
3. interrupted periodically by the nodes of Ranvier
4. composed of spirally wrapped plasma membrane
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.

13. Most synaptic terminals of axons that form chemical synapses in the CNS contain–
1. synaptic vesicles
2. presynaptic densities
3. neurotransmitter(s)
4. rough endoplasmic reticulum
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.

14. Na, K-ATPase–
1. utilizes ATP
2. acts as an ion pump
3. maintains the gradients of Na and K ions across neuronal membranes
4. consumes more than 25% of cerebral energy production
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.

15. In axoplasmic transport–
1. some macromolecules move away from the cell body at rates of several centimeters per day
2. mitochondria move along the axon
3. microtubules seem to be involved
4. some types of molecules move toward the cell body at rates of up to 300 mm per day
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.

16. Neurotransmitters found in the brain stem include–
1. acetylcholine
2. norepinephrine
3. dopamine
4. serotonin
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is E.

17. The brain stem includes–
1. the midbrain (mesencephalon)
2. pons
3. medulla oblongata
4. telencephalon
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is A.

18. Glutamate–
1. is the transmitter at the neuromuscular junction
2. may be involved in excitotoxicity
3. is a major inhibitory transmitter in the CNS
4. is a major excitatory transmitter in the CNS
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.

19. Glutamate–
1. is the transmitter at the neuromuscular junction
2. may be involved in excitotoxicity
3. is a major inhibitory transmitter in the CNS
4. is a major excitatory transmitter in the CNS
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is C.

20. A ganglion is defined as a–
1. part of the basal ganglia
2. group of nerve cell bodies within the hypothalamus
3. layer of similar cells in the cerebral cortex
4. group of nerve cell bodies outside the neuraxis
One or more answers may be correct. Select–
A. if 1, 2, and 3 are correct
B. if 1 and 3 are correct
C. if 2 and 4 are correct
D. if only 4 is correct
E. if all are correct
The answer is D.

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