In Most Cases, How Many Neurotransmitters Can Activate a Postsynaptic

question 51

Multiple Choice

In most cases, how many neurotransmitters can activate a postsynaptic neuron?

• A) only one neurotransmitter
• B) any neurotransmitter
• C) several transmitters, with different synapses responding to different transmitters
• D) several transmitters, which must be received simultaneously

---

Definitions:

Fatigue

A state of physical or mental weariness resulting from exertion, reducing efficiency and capacity for work.

Action Potentials

Rapid and temporary electrical impulses that travel across the membrane of nerve cells, facilitating neuronal communication.

Synapse

The junction between two neurons or between a neuron and muscle fiber, where electrical or chemical signals are transmitted.

All-or-none Law

A principle stating that the strength of a response of a nerve or muscle fiber is not dependent on the strength of the stimulus. If a stimulus is above a certain threshold, a nerve or muscle fiber will fire.