When a Nerve Impulse Reaches the End of the Axon

question 693

Multiple Choice

When a nerve impulse reaches the end of the axon, the tiny sacs that store the neurotransmitters move to the surface and release these chemicals.These tiny sacs that store the neurotransmitters are called

• A) synaptic vesicles.
• B) myelin sheaths.
• C) neurilemmas.
• D) ion channels.

---

Definitions:

Ecology

The branch of biology that studies the interactions among organisms and their environment.

Organisms

Individual living entities that can react to stimuli, reproduce, grow, and maintain homeostasis.

Environment

The surrounding conditions and influences that affect the growth, development, and survival of organisms.

Environmentalism

A broad philosophy and social movement centered on the concern for the conservation and improvement of the environment.