The vesicles at the end of an axon bulb contain ____.
A) sodium (Na+) ions
B) neurotransmitters
C) myelin
D) DNA

Question

Quizplus · Accepted Answer

Vesicles at the end of an axon contain neurotransmitters, which are chemicals that transmit signals between neurons or between neurons and other cells. Sodium ions (A) are not stored in vesicles, but can flow into or out of neurons through ion channels. Myelin (C) is a fatty substance that forms a sheath around some axons to speed up neural transmission, but it is not stored in vesicles. DNA (D) is found in the cell nucleus, but not in vesicles at the end of an axon.

The Vesicles at the End of an Axon Bulb Contain