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EQM351 > Nervous System Exam 2 > Flashcards

Nervous System Exam 2 Flashcards

1
Q

Central nervous system (CNS)

A

brain and spinal cord (protected by the skull and spinal column)

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2
Q

Peripheral nervous system (PNS)

A

cranial and spinal nerves (somatic) and autonomic nervous system

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3
Q

Where do cranial nerves originate?

A

in the brain

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4
Q

Where do spinal nerves originate?

A

in the spinal cord

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5
Q

Where do nerves come out of from the brain to the spinal cord?

A

the magnum foreamen

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6
Q

Forebrain/cerebral hemisphere

A

outer gray matter (neocortex) and inner white matter of the brain

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7
Q

What does the neocortex deal with?

A

memory and consciousness

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8
Q

What does the olfactory bulb deal with?

A

sense of smell

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9
Q

Where is the olfactory bulb located?

A

forebrain

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10
Q

Midbrain/Mesencephalon

A

visual, auditory, and some olfactory information
-controls the hindbrain sensors

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11
Q

Hindbrain is made up of:

A

the cerebellum and the medulla oblongata

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12
Q

What does the cerebellum do?

A

coordinates and regulates motor activities

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13
Q

What does the medulla oblongata and pons control?

A

breathing and linked to emotional and behavioral responses

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14
Q

What are the two branches of the somatic nervous system?

A

motor (efferent) and sensory (afferent)

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15
Q

What are the two branches of the autonomic nervous system?

A

sympathetic and parasympathetic

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16
Q

What are the two branches of the PNS?

A

somatic and autonomic

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17
Q

Proprioception

A

your body knows where you are in perspective to the world (ex: clumsy people lack proprioception)

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18
Q

What side of the body does the right side of the brain control?

A

the left side

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19
Q

What side of the body does the left side of the brain control?

A

the right side

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20
Q

Sensory nerves

A

bring info to the brain

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21
Q

Motor nerves

A

brings info from the brain out to the body

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22
Q

Can nerves be both sensory and motor?

A

yes

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23
Q

Is the olfactory nerve sensory or motor?

A

sensory

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24
Q

Olfactory nerve function

A

sense of smell

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25
Q

Is the optic nerve sensory or motor?

A

sensory

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26
Q

Optic nerve function

A

vision

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27
Q

Is the oculomotor nerve sensory or motor?

A

motor

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28
Q

Oculomotor nerve function

A

moves eye

29
Q

Is the trochlear nerve sensory or motor?

A

motor

30
Q

Trochlear nerve function

A

eye movement

31
Q

Is the trigeminal nerve sensory or motor?

A

both

32
Q

Trigeminal nerve function

A

moves lower jaw/lip (herpes virus hides in this ganglia)

33
Q

Is the abducent nerve sensory or motor?

A

motor

34
Q

Abducent nerve function

A

abducts the eye

35
Q

Is the facial nerve sensory or motor?

A

both

36
Q

Is the vestibulocochlear nerve sensory or motor?

A

sensory

37
Q

Facial nerve function

A

facial expressions and some taste

38
Q

Vestibulocochlear nerve function

A

hearing

39
Q

Is the glossopharyngeal nerve sensory or motor?

A

both

40
Q

Glossopharyngeal nerve function

A

move pharynx and larynx

41
Q

Is the vagus nerve sensory or motor?

A

both

42
Q

Vagus nerve function

A

-basil activities (slows HR, helps with digestions)
-activated by acetylcholine

43
Q

Is the spinal accessory nerve sensory or motor?

A

motor

44
Q

Spinal accessory nerve function

A

movement of head and neck

45
Q

Is the hypoglossal nerve sensory or motor?

A

motor

46
Q

Hypoglossal nerve function

A

movement of tongue

47
Q

What is the spinal cord made up of?

A

bundles of nerve fibers

48
Q

What is the spinal cords function?

A

carry messages to and from the brain (the link between the brain and PNS)

49
Q

Where does the spinal cord start/medulla oblongata end?

A

at the foramen magnum

50
Q

Where does the spinal cord end?

A

at the sacrum

51
Q

Where is white matter on the spinal cord?

A

on the outside

52
Q

Where is grey matter on the spinal cord?

A

on the inside (opposite of brain)

53
Q

What encases the brain and spinal cord?

A

meninges (3 layers)

54
Q

What helps cushion the brain and spinal cord?

A

cerebrospinal fluid (CSF)

55
Q

Dura mater

A

outermost meninx layer
-fibrous consistency

56
Q

Arachnoid

A

intermediate meninx layer
-a little rougher than Pia mater but not as rough as dura mater

57
Q

Subarachnoid space

A

in between arachnoid and pia mater
-contains CSF

58
Q

Pia mater

A

thinnest meninx layer
-closest to brain or spinal cord
-very sensitive

59
Q

Meningitis

A

infection of one of the meninges

60
Q

Epidural

A

injected into the dura mater

61
Q

CSF

A

-cushions the brain and spinal cord
-gives nutrients to the nervous system

62
Q

Somatic nerves

A

voluntary (skeletal) movement

63
Q

Sensory (afferent) nerves

A

messages sent from the body (muscles) to the brain

64
Q

Motor nerves (efferent)

A

messages sent from the brain to the body (muscles)

65
Q

Autonomic nerves

A

controls the body’s involuntary activities
-HR
-gut movements
-sweating
-etc

66
Q

Sympathetic nervous system

A

involved with flight or fight responses
-increased HR
-increased BP
-dry mouth
-sweat
-dilated pupils
-dilated bronchioles
-slows gut movements
-contracts anal/bladder sphincter

67
Q

Parasympathetic nervous system

A

involved with basil functions
-“rest and digest”
-basil HR
-basil RR
-gland secretions
-etc.

68
Q

Spinal cord segment formula

A

C6 T18 L6 S5 Cd15-21

69
Q

How does a spinal cord injury heal?

A

only caudal to the site of the injury

EQM351 (28 decks)

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