Which division of the nervous system is responsible for accelerating the heart rate in an emergency?
A. Somatic sensory division
B. CNS
C. Sympathetic division
D. Parasympathetic division
E. Somatic motor division
Answer: C
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Which of the following does not occur during the micturition reflex in a baby?
a. The motor neuron supplying the external sphincter is stimulated. b. The parasympathetic nerve supply to the bladder is stimulated. c. The internal urethral sphincter mechanically opens due to changes in the shape of the bladder. d. The external urethral sphincter is relaxed. e. The bladder contracts.
The white matter of the brain derives its color from myelin.
Answer the following statement true (T) or false (F)
Which of the following organelles is not part of the endomembrane system?
A. vesicles. B. mitochondria. C. rough ER. D. Golgi apparatus.
Schwann cells differ from oligodendrocytes in which of the following ways?
A. Schwann cells form myelin; oligodendrocytes do not. B. Oligodendrocytes are only found in the PNS; Schwann cells are only found in the CNS. C. Schwann cells form sheaths around several axons, while oligodendrocytes form sheaths around only one axon. D. Schwann cells form a myelin sheath around a portion of only one axon, while oligodendrocytes can surround portions of several axons. E. None of these choices are true differences.