Question 1

A neuron in the skin detects tissue damage in the skin during a burn and informs the brain and spinal cord. This neuron is part of the ________ pathway.

Accepted Answer

The answer of A neuron in the skin detects tissue...

Question 2

If a neurotransmitter hyperpolarizes a cell membrane and an action potential is less likely, the change is called ________ potential.

Accepted Answer

The answer of If a neurotransmitter hyperpolarizes a cell membrane...

Question 3

Enkephalins are neuropeptides.

Accepted Answer

Enkephalins are indeed neuropeptides. They are naturally occurring opioids that are produced by the brain and spinal cord, and play a role in pain regulation and mood control.

Question 4

Several interneurons from the spinal cord lead into and interact with the dendrites of a single motor neuron in the leg to sum impulses from several different sensory sources. This phenomenon is called ________.

Accepted Answer

The answer of Several interneurons from the spinal cord lead...

Question 5

Neuropeptides that affect a neuron's response to other neurotransmitters are called ________.

Accepted Answer

The answer of Neuropeptides that affect a neuron's response to...

Question 6

The cells in the nervous system that fill spaces and support neurons both physically and nutritionally are called ________.

Accepted Answer

The answer of The cells in the nervous system that...

Question 7

Sheaths of ________ cells often enclose the larger axons outside of the brain and spinal cord.

Accepted Answer

The answer of Sheaths of ________ cells often enclose the...

Question 8

Muscles and glands that respond to nervous stimulation are called ________.

Accepted Answer

The answer of Muscles and glands that respond to nervous...

Question 9

A series of similar stimuli that induces change in local membrane potential is called ________.

Accepted Answer

The answer of A series of similar stimuli that induces...

Question 10

Several nerve fibers converging onto one neuron amplifies impulses.

Accepted Answer

Convergence of nerve fibers onto one neuron typically integrates and processes information rather than amplifying impulses. Amplification is more associated with divergence or specific synaptic mechanisms.

Question 11

A motor neuron in the arm has an axon that branches to innervate several muscle groups and cause them to contract all at once. This branching is an example of ________.

Accepted Answer

The answer of A motor neuron in the arm has...

Question 12

A(n)________ is the junction between neurons.

Accepted Answer

The answer of A(n)________ is the junction between neurons....

Question 13

A neuron branching from the spinal cord innervates a group of muscle fibers in the biceps brachii and stimulates them to contract. This neuron is part of the ________ pathway.

Accepted Answer

The answer of A neuron branching from the spinal cord...

Question 14

An impulse conducted along an axon consists of a wave of ________ ________ moving away from a point of stimulation.

Accepted Answer

The answer of An impulse conducted along an axon consists of...

Question 15

In convergence, two or more incoming fibers contact a single neuron, whereas in divergence, impulses leaving a neuron pass into several output fibers.

Accepted Answer

This statement correctly describes the difference between convergence and divergence.

Question 16

The difference in electrical charge between the inside and outside of a polarized neuron cell membrane is called the ________ ________.

Accepted Answer

The answer of The difference in electrical charge between the...

Quiz 10: Nervous System I: Basic Structure and Function