 |
| 1 | |
The basic element of the nervous system is a nerve cell, or neuron. |
| | A) | True |
| | B) | False |
|
|
|
| 2 | |
The two parts of a neuron are the cell body and the axon. |
| | A) | True |
| | B) | False |
|
|
|
| 3 | |
The axon, which conducts nerve impulses away from the cell body, is generally a single branch covered by fatty tissue called the myelin sheath. |
| | A) | True |
| | B) | False |
|
|
|
| 4 | |
The nerve impulse jumps from one neuron to the next over a space called a neurotransmitter. |
| | A) | True |
| | B) | False |
|
|
|
| 5 | |
All neurons have two basic properties: excitability (anything that arouses a response) and conductivity (the ability to transmit a signal). |
| | A) | True |
| | B) | False |
|
|
|
| 6 | |
The human adult brain weighs approximately eight pounds, is 85 percent water, and contains over 10 billion neurons. |
| | A) | True |
| | B) | False |
|
|
|
| 7 | |
A lobotomy is a severing of nerves in the frontal lobe, and used to be considered a good way to treat mental illness. |
| | A) | True |
| | B) | False |
|
|
|
| 8 | |
The three layers of membranes that cover the brain and spinal cord are known as the meninges. |
| | A) | True |
| | B) | False |
|
|
|
| 9 | |
A severe concussion can lead to a coma. |
| | A) | True |
| | B) | False |
|
|
|
| 10 | |
Paralysis of one side of the face is Bell's palsy. |
| | A) | True |
| | B) | False |
|
|
|
| 11 | |
Acetylcholine is a neurotransmitter that affects memory. |
| | A) | True |
| | B) | False |
|
|
|
| 12 | |
There are 13 pairs of spinal nerves. |
| | A) | True |
| | B) | False |
|
|
|
| 13 | |
The space a nerve impulse jumps over is called the neurilemma. |
| | A) | True |
| | B) | False |
|
|
|
| 14 | |
A disruption in the normal blood supply to the brain can lead to a stroke. |
| | A) | True |
| | B) | False |
|
|
|
| 15 | |
Overproduction of fluid in the brain is hydrocephalus. |
| | A) | True |
| | B) | False |
|
|
|
| 16 | |
The parietal lobe controls memory, equilibrium, emotion, and hearing. |
| | A) | True |
| | B) | False |
|
|
|
| 17 | |
An x-ray of the spinal cord is a myelogram. |
| | A) | True |
| | B) | False |
|
|
|
| 18 | |
The blocking of a blood vessel is an embolus. |
| | A) | True |
| | B) | False |
|
|
|
| 19 | |
Nerves are composed of bundles of neurons. |
| | A) | True |
| | B) | False |
|
|
|
| 20 | |
A glioma is any group of nerve cells bunched together to form a growth or cyst, usually arising from a wrist tendon. |
| | A) | True |
| | B) | False |
|
|
.