Transmission of a nerve impulse from one neuron to another neuron is dependent on
A) the presence of calcium ions.
B) a neurotransmitter.
C) a synaptic cleft.
D) a presynaptic and postsynaptic membrane.
E) All of the answer choices are requirements for the transmission of a nerve impulse.

Question

Quizplus · Accepted Answer

All of the options listed are necessary for the transmission of a nerve impulse from one neuron to another. The presence of calcium ions is required for the release of neurotransmitters from the presynaptic neuron. The neurotransmitter is released into a synaptic cleft, where it can bind to receptors on the postsynaptic neuron's membrane. The binding of the neurotransmitter causes a change in membrane potential, which can result in the generation of an action potential in the postsynaptic neuron. Therefore, the presynaptic and postsynaptic membranes are also required for the transmission of a nerve impulse.

Transmission of a Nerve Impulse from One Neuron to Another