z When the nerve signal reaches the axon terminal what happens next? A. The musc

Question

z When the nerve signal reaches the axon terminal what happens next? A. The muscle contracts. B. The synaptic vesicles release neurotransmitter C. An electrical signal is formed that jumps the synaptic cleft. D. H+ is pumped into the synaptic cleft. E. Myosin is released from the axon terminal. 8. The spinal cord belongs to the A. peripheral nervous system. B. appendicular nervous system C. axial nervous system. D. central nervous system.. E. none of these. Which one of the following is entirely located within the central nervous system? A. sensory neuron B. sensory receptor C. interneuron 9 D. effector E. motor neuron 10. Which of the following is associated with the PNS but not the CNS? A. Schwann cells B. myelin sheath C. axon D. dendrite E. node of Ranvier 11. Which of the following types of nerves is not covered by a protective myelin sheath? A. long axons B. nerve fibers within the PNS C. white matter of the CNS D. gray matter of the CNS E. axons of the CNS 12. Which of the following lists the parts of a reflex arc in the correct sequence? A. Receptor, sensory neuron, motor neuron,

Explanation / Answer

7. B) the synaptic vesicles release neurotransmitters

As the action potential would be reaching the terminal of the motor neurons, there would be opening of the calcium channels. This opening of the calcium channels would be allowing entry of calcium in the axon terminals. Because of this entry, the synaptic vesicles would be releasing neurotransmitters such as acetylcholine, through the process of exocytosis.

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