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MED 116 CH quizzes > MED 116 CH 9 > Flashcards

MED 116 CH 9 Flashcards

1
Q

define axon

A

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

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2
Q

define cerebrum

A

The largest and uppermost part of the human brain

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3
Q

Define diencephalon

A

include the thalamus and hypothalamus

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4
Q

define myelin

A

White fatty substance that surrounds many nerve fibers

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5
Q

define neuron

A

Nerve cell including its proceses; conducting cell of nervous tissue

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6
Q

Gray matter is made up of?

A

Neuron cell bodies and unmyelinated fibers

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7
Q

How many pairs of cranial nerves are in the body?

A

12 PAIRS

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8
Q

How many pairs of spinal nerves are in the body?

A

31 PAIRS

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9
Q

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

A

MIXED NERVES

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10
Q

The cerebral cortex consists of?

A

GRAY MATTER

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11
Q

The function of a neuron is to?

A

Transmit nerve impulses

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12
Q

The peripheral nervous system is made up of?

A

Cranial nerves and spinal nerves

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13
Q

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

A

First lumbar vertebra

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14
Q

What are meninges?

A

Membranes that surround the brain and spinal cord

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15
Q

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

A

Corpus callosum

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16
Q

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

A

Central NS and Peripheral NS

17
Q

What is the function of the peripheral nervous system?

A

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

18
Q

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

A

NEUROTRANSMITTER

19
Q

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

A

Synapse

20
Q

What makes up a neuron?

A

Cell body, dendrites, and axon

21
Q

What makes up the central nervous system?

A

Brain and spinal cord

22
Q

What makes up the white matter of the brain?

A

Myelinated fibers

23
Q

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

A

Sensory neurons

24
Q

Which of following regulates rhythmic cycles in the body?

A

pineal gland

25
Q

Which of the following are under control of the medulla?

A

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

26
Q

Which of the following divides the cerebrum into two hemispheres?

A

longitudinal fissure

27
Q

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

A

Intelligence
Language
Personality
Memory

28
Q

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

A

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

29
Q

Which of the following is NOT a characteristic of neuroglia?

A

They conduct nerve impulses

30
Q

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

A

It is responsible for conscious body movement

31
Q

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

A

Increases activity of the digestive tract

32
Q

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

A

involved with the onset of puberty

33
Q

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

A

Thalamus

34
Q

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

A

Diencephalon

35
Q

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

A

Subarachnoid space

36
Q

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

A

sensory neurons

MED 116 CH quizzes (6 decks)

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