Nervous System

1.The nervous system is the center of all mental activity including all the following except ________.

• A. thinking

• B. learning

• C. digesting

• D. memory

2. Like other systems in the body, the nervous system is composed of organs, principally the brain, spinal cord, nerves, and _______.

• A.ganglia

• B.axon

• C.neurons

• D.dura mater

3. Millions of sensory receptors detect changes, called ________, which occur inside and outside the body.

• A.neuron

• B.skin

• C.motor

• D.stimuli

4. The brain and spinal cord are the organs of the ________ .

• A.CNS

• B.PNS

• C.ANS

• D.CSF

5. There are ________ layers of meninges around the brain and spinal cord.

• A.one

• B.Two

• C.Three

• D.four

6. Each cerebral hemisphere is divided into ________ lobes, ________ of which have the same name as the bone over them.

• A.four, three

• B.three, two

• C. five, two

• D.five, four

7. The cerebellum, ________ portion of the brain, is located below the occipital lobes of the cerebrum.

• A.the largest

• B.the second largest

• C.the third largest

• D. the smallest

8. Like the brain, the spinal cord is surrounded by bone, meninges, and ________.

• A.cerebrospinal fluid

• B.white matter

• C.gray matter

• D.water

9. ________ contain only afferent fibers, long dendrites of sensory neurons.

• A.Cranial nerves

• B.Sensory nerves

• C.Motor nerves

• D.Mixed nerves

10. One of the three basic parts of a neuron is the ________.

• A.axon

• B.Myelin

• C.pons

• D.dura mater