AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

NEUROTRANSMISSION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A neuron extension that passes messages through its branches to other neurons or to muscles or glands.
A
action potential
B
axon
C
glial cell
D
dendrite
Explanation: 

Detailed explanation-1: -axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body. A neuron typically has one axon that connects it with other neurons or with muscle or gland cells. Some axons may be quite long, reaching, for example, from the spinal cord down to a toe.

Detailed explanation-2: -Axon: the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons, muscles, or glands.

Detailed explanation-3: -Dendrites. Dendrites and axons are cytoplasmic extensions, or processes, that project from the cell body. They are sometimes referred to as fibers. Dendrites are usually, but not always, short and branching, which increases their surface area to receive signals from other neurons.

Detailed explanation-4: -An axon typically develops side branches called axon collaterals, so that one neuron can send information to several others. These collaterals, just like the roots of a tree, split into smaller extensions called terminal branches. Each of these has a synaptic terminal on the tip.

Detailed explanation-5: -Neurons carry messages from the brain via the spinal cord. The neurons that carry these messages to the muscles are called motor neurons.

There is 1 question to complete.