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PHARM 204 > CNS part 3 > Flashcards

CNS part 3 Flashcards

1
Q

what connects the spinal cord and brain stem

A

MO

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2
Q

3 nuclei in MO functions

A
  1. relay centers for sensory or motor pathways
  2. associated with cranial nerves connected to MO
  3. associated with autonomic control of visceral organs
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3
Q

what are the relay stations of the MO

A

gracile nucleus and cuneate nucleus
solitary nucleus
olivary nucleus

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4
Q

function of gracile nucleus and cuneate nucleus

A

pass somatic sensory information to the thalamus

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5
Q

function of solitary nucleus

A

gets visceral sensation from spinal nerves and cranial nerves

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6
Q

olivary nuclei function

A

pass information from cerebrum, spinal cord, diencephalon, and brainstem to cerebellum

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7
Q

autonomic nuclei of reflex centers recieve input frm

A

cranial nerves, cerebral cortex, diencephalon, and brainstem

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8
Q

major reflex centers of the MO include

A

CV centers

respiratory rhythmic centers

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9
Q

cranial nerves associated with MO

A

sensory and motor nuclei

8, 9, 10, 11, 12

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10
Q

is pons above or below the MO

A

above

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11
Q

what does the pons consist of

A

sensory and motor nuclei for cranial nerves V, VI, VII, and VIII
nuclei involved in involuntary control of breathing
nuclei that relay cerebellar commands
ascending, descending, and transverse tracts

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12
Q

nuclei involved in breathing in the pons consist of

A

apneustic center and pneumotaxic center

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13
Q

mesencephalon consists of 2 pairs of nuclei collectively called

A

corpora quadrigemina

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14
Q

surface of the midbrain is called the

A

tectum

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15
Q

what is the tectum responsible for

A

visual (superior colliculi) and auditory processing (inferior)

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16
Q

walls and floor of the mesencephalon consists of

A

nuclei of the reticular formation

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17
Q

reticular formation consists of

A

pair of nuclei- red nucleus and substantia nigra

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18
Q

what is the reticular formation responsible for

A

maintaining alertness, muscle tone, and limb position

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19
Q

ventrolateral surfaces of the midbrain contain the

A

cerebral peduncles

20
Q

cerebral peduncles are

A

white matter
connect primary motor cortex with motor neurons in brain and spinal cord- carry ascending sensory information to the thalamus

21
Q

substantia nigra function

A

regulates activity in basal nuclei

22
Q

red nuclei function

A

involuntary control of background muscle tone and limb position

23
Q

what contains the pineal gland

A

epithalamus

24
Q

where is melatonin produced

A

epithalamus (pineal gland)

25
Q

interthalamic adhesion connects

A

the right and left thalamus

26
Q

the hypothalamus extends from area superior to the ________ to the mammillary bodies

A

optic chiasm

27
Q

where is the infundibulum

A

extending from the hypothalamus connecting the pituitary gland

28
Q

the midsagittal section of the hypothalamus is the

A

tuberal area

29
Q

what forms the walls of the third ventricle

A

the thalamus

30
Q

anterior thalamic nuclei

A

part of the limbic system

31
Q

medial thalamic nuclei

A

relay information to the frontal lobe

32
Q

ventral thalamic nuclei

A

relay information to the parietal lobes

33
Q

posterior thalamic nuclei

A

relay information to the occipital lobe

34
Q

what invludes the pulvinar nuclei/ lateral geniculate nucleii/ medial geniculate nuclei

A

posterior nuclei

35
Q

what does the lateral thalamic nuclei do

A

adjusts activity in the cingulate gyrus and parietal lobe

36
Q

what does the hypothalamus control generally

A

subconscious control of skeletal muscles, HR, BP, respiration, and digestive functions

37
Q

where is ADH secreted

A

hypothalamus supraoptic nucleus

38
Q

where is oxytocin secreted

A

PVN in hypothalamus

39
Q

what regulates body temperature in the hypothalamus

A

preoptic area

40
Q

what regulates circadian rhythm

A

suprachiasmatic nucleus in the hypothalamus

41
Q

the anterior and posterior lobes of the cerebellum are separated by

A

primary fissure + vermis

42
Q

arbor vitae

A

connects cerebellar cortex with cerebellar peduncles

43
Q

cerebellar peduncles- 3 parts

A

superior, middle, inferior

44
Q

superior cerebellar peduncle

A

connects cerebellum with mesencephalon, diencephalon, and cerebrum

45
Q

middle cerebellar peduncle

A

communicates between cerebellum and pons

46
Q

inferior cerebellar peduncles

A

connects cerebellum with MO

PHARM 204 (17 decks)

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