MED 116 CH 9

Question 1

define axon

Answer 1

The efferent processes of neurons that carry impulses away from cell body

Question 2

define cerebrum

Answer 2

The largest and uppermost part of the human brain

Question 3

Define diencephalon

Answer 3

include the thalamus and hypothalamus

Question 4

define myelin

Answer 4

White fatty substance that surrounds many nerve fibers

Question 5

define neuron

Answer 5

Nerve cell including its proceses; conducting cell of nervous tissue

Question 6

Gray matter is made up of?

Answer 6

Neuron cell bodies and unmyelinated fibers

Question 7

How many pairs of cranial nerves are in the body?

Answer 7

12 PAIRS

Question 8

How many pairs of spinal nerves are in the body?

Answer 8

31 PAIRS

Question 9

Nerves that carry both sensory and motor fibers are known as?

Answer 9

MIXED NERVES

Question 10

The cerebral cortex consists of?

Answer 10

GRAY MATTER

Question 11

The function of a neuron is to?

Answer 11

Transmit nerve impulses

Question 12

The peripheral nervous system is made up of?

Answer 12

Cranial nerves and spinal nerves

Question 13

The spinal cord extends from the base of the skull to the?

Answer 13

First lumbar vertebra

Question 14

What are meninges?

Answer 14

Membranes that surround the brain and spinal cord

Question 15

What is the band of white fibers that connects the cerebral hemispheres?

Answer 15

Corpus callosum

Question 16

What are the two main divisions of the nervous system (NS)?

Answer 16

Central NS and Peripheral NS

Question 17

What is the function of the peripheral nervous system?

Answer 17

Provides a communication network between the central nervous system and the body

Question 18

What is the name given to a chemical that transmits a nerve impulse across a synaptic cleft from one neuron to another?

Answer 18

NEUROTRANSMITTER

Question 19

What is the name of the region of communication between two neurons?

Answer 19

Synapse

Question 20

What makes up a neuron?

Answer 20

Cell body, dendrites, and axon

Question 21

What makes up the central nervous system?

Answer 21

Brain and spinal cord

Question 22

What makes up the white matter of the brain?

Answer 22

Myelinated fibers

Question 23

What type of neurons carry impulses from sense receptors to the central nervous system?

Answer 23

Sensory neurons

Question 24

Which of following regulates rhythmic cycles in the body?

Answer 24

pineal gland

Question 25

Which of the following are under control of the medulla?

Answer 25

Adjustment of heart rate, Regulation of blood pressure, Regulation of breathing, Vomiting

Question 26

Which of the following divides the cerebrum into two hemispheres?

Answer 26

longitudinal fissure

Question 27

Which of the following functions are controlled by the cerebral cortex?

Answer 27

Intelligence Language Personality Memory

Question 28

Which of the following is an advantage of spinal reflex if you touch a hot stove?

Answer 28

It allows you to withdraw the affected part before you are aware of pain.

Question 29

Which of the following is NOT a characteristic of neuroglia?

Answer 29

They conduct nerve impulses

Question 30

Which of the following is NOT a characteristic of the autonomic nervous system?

Answer 30

It is responsible for conscious body movement

Question 31

Which of the following is NOT a characteristic of the sympathetic division of the autonomic nervous system?

Answer 31

Increases activity of the digestive tract

Question 32

Which of the following is NOT a function of the hypothalamus?

Answer 32

involved with the onset of puberty

Question 33

Which of the following serves as a relay station for sensory impulses going to the cerebral cortex?

Answer 33

Thalamus

Question 34

Which of the following structures does NOT make up the brain stem?

Answer 34

Diencephalon

Question 35

Which of the following structures of the meninges is filled with cerebrospinal fluid and contains blood vessels?

Answer 35

Subarachnoid space

Question 36

which type of neurons carry impulses from sense receptor to the central nervous system?

Answer 36

sensory neurons