Neural stem cells in the CNS
A. can only form glial cells.
B. can form new neurons throughout the CNS.
C. have no known function.
D. can form new neurons in only certain portions of the CNS such as the hippocampus.
E. can migrate to the PNS as needed.
Answer: D
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Answer the following statements true (T) or false (F)
1) The expanded portion of the axonal branch that faces a region of the sarcolemma are called synaptic terminals 2) A region of the sarcolemma that faces an expanded portion of an axonal branch is the motor end plate. 3) A space that separates the sarcolemma from the axon membrane is the synaptic vesicle. 4) The cytoplasm of the synaptic knob contains mitochondria as well as vesicles containing acetylcholine. 5) The sarcoplasmic reticulum conducts action potentials from the sarcolemma into the cell.
Which vessels can act as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume?
a. arteries. b. arterioles. c. capillaries. d. veins. e. lymph vessels.
A photoreceptor becomes hyperpolarized when excited
Indicate whether the statement is true or false
Which of the following muscles is classified as pennate?
A. Sartorius B. Biceps brachii C. Orbicularis oculi D. Pectoralis major E. Semimembranosus