Question

An action potential travels down the axon of a neuron because

A. Neurotransmitters bind to receptors on the dendrites of the neuron

B. Neurotransmitters are released from the axon terminals of the neuron

C. The action potential travels through the synapse from a nearby neuron

D. Vesicles in the axon terminal release their contents at the synapse

E. The cell body releases neurotransmitter down the length of the axon

Answer 1

Hint: An action potential occurs when a neuron sends information away from the body through the axon. The explosion of electrical activity is created by depolarizing current. Impulse or spike are the names for the action potential.

Complete answer: In action potential it acts as electrical signals transported through neurons. The stages of the action potential are depolarization, hypopolarisation, repolarisation, hyperpolarization. The example of action potentials are found in nerve fibers to muscle are found in nerve impulses. The membrane of the axon depolarized and repolarized when action potential travels down words. Neurons communicate with each other through electrical events called an action potential and chemical neurotransmitters. Transmission of the signal within a neuron (in one direction only, from dendrite to axon terminal ) is carried out by the opening and closing of voltage-gated ion channels. The neuron will pass the signal downstream if the input is strong. . As an action potential travels down the axon, the polarity changes across the membrane. Once the single reaches the axon terminal, it stimulates other neurons. An action potential travels down the neuron because the neurotransmitter binds to a receptor on the dendrites of the neuron.

Hence, the correct answer is option A.

Note: An action potential is caused by either threshold or suprathreshold stimuli based upon a neuron. An action potential spreads along the cell membrane of an axon until it reaches the terminal button. When action potential or nerve impulse arrives at the axon terminal, it activates voltage-gated channels and the neurotransmitter binds to receptors on target cells.