Presynaptic vesicles are located in the ________
A) axon hillocks
B) neurofibrils
C) axon terminals
D) telodendria
Answer: C
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Most metabolic and regulatory functions in a neuron happen where?
A. The axon hillock B. The dendrites C. The axon D. The neurosoma E. The Schwann cell
A blood clot stimulating further clotting is an example of
A) a process turning itself off. B) nervous system communication. C) a positive feedback mechanism. D) a negative feedback mechanism.
Which of the following statements is false?
A. Water evaporation cools the body. B. Water serves as an effective lubricant in our bodies. C. Water transports nutrients in the body. D. Water allows the body to resist sudden temperature changes. E. Water evaporation heats the body.
Specific immune responses
a. require helper T-cell activation b. are under control of the adaptive immune system c. could not occur if the thymus gland did not develop d. require recognition of antigens by receptors e. have all of the above characteristics