Question

neural transmission involves the orderly, systematic process of signals traveling through neurons. disruptions in this process can lead to disorders such as multiple sclerosis or myasthenia gravis. which of the following best describes how neural transmission works and the potential impact of these disruptions? a the action potential travels down the axon, triggering the release of neurotransmitters from the axon terminals into the synapse. disruptions in this process can lead to multiple sclerosis due to the immune system attacking the myelin sheath. b neurotransmitters are released from the dendrites and travel down the axon, where they are absorbed by the cell body. disruptions in this process can lead to multiple sclerosis due to demyelination of axons. c neurotransmitters travel from the synaptic cleft back into the axon terminal, initiating an action potential. disruptions in this process can lead to myasthenia gravis, which affects the release of neurotransmitters from dendrites. d the action potential initiates in the synapse, causing neurotransmitters to travel up the axon to the cell body. no answer saved.

Explanation:

Neural transmission starts with an action potential traveling down the axon, triggering neurotransmitter release from axon terminals into the synapse. Multiple sclerosis is related to the immune - system attacking the myelin sheath. Myasthenia gravis is related to issues with neurotransmitter function at the synapse. Option A correctly describes the process of neural transmission and the impact of disruptions. Neurotransmitters are released from axon terminals, not dendrites as in B. Neurotransmitters don't travel from the synaptic cleft back into the axon terminal to initiate an action potential as in C. The action potential initiates in the axon hillock, not the synapse, and neurotransmitters travel from axon terminals to the synapse, not up the axon to the cell body as in D.

Answer:

A. The action potential travels down the axon, triggering the release of neurotransmitters from the axon terminals into the synapse. Disruptions in this process can lead to multiple sclerosis due to the immune system attacking the myelin sheath.