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Med Neuro Block 3 > Brain Stem Structure > Flashcards

Brain Stem Structure Flashcards

1
Q

integrative funcitons are performed by diffuse nucleus w/in the brainstem called

A

the reticular formation

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2
Q

help regulate consciousness and constains respiratory CV centers

A

reticular formation

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3
Q

Brainstem serves as a ______ for ascending sensory and descending motor tracts

A

conduit

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4
Q

Controls voluntary movement of limbs

A

Corticospinal tract

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5
Q

damage to anterior part of brainstem results in a :

A

motor deficeit

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6
Q

transmists sensory info for pain and temp

A

spinothalamic (lies more lateral)

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7
Q

transmists sensory info for touch, vibration, pressure and proprioception

A

Posterior Colunm/Medial Lemnisucs (lies medially and flares out)

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8
Q

Cell bodies of neurons are clustered _______ throughout brainstem and serve as origin of motor or termination of sensory CNs

A

nuclei

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9
Q

NS developed from

A

neural tube

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10
Q

Nueural tube has a ______ for motor and a ______ for sensory

A

basal plate

alar plate

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11
Q

basal plate and alar plate are seperated by

A

sulcus limitans

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12
Q

brainstem devo is simular to

A

sp cd devo

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13
Q

Alar will start to fan out more ______ while basal stays more ________

A

laterally

medially

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14
Q

CN nuclie are arranged in

A

Functional Columns

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15
Q

CNs in the midbrain

A 
Optic
Opthalmic
Oculomotor
Trochlear
I-IV
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16
Q

CNs in the Pons

A 
Trigeminal 
Abducens
Facial
Vestibulocochlear
V-VIII
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17
Q

CNs in the Medulla

A 
Glossopharnygeal
Vagus
Accesory
Hypoglossal
IX-XII
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18
Q

CN nuclei are Clusters of Cell Bodies ______ the brainstem

and nuclie are

A

WITHIN

bilateral

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19
Q

Somatic motor (red) is located

A

Most medial

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20
Q

Branchial motor (orange function)

A

Innervates skeletal mslc derived from brachial arches; muscles of mastication, facial expression, pharynx, larynx

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21
Q

Somatic motor (red) funx

A

innervates skeletal mals in head and neck that are derived from myotomes

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22
Q

What Brainstem nuclei are located in the Somatic Motor column

A

Oculomotor (III)
Troclear (IV)
Abducens (VI)
Hypoglossal (XII)

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23
Q

Brachial motor are located

A

second from middle: orange

24
Q

What brainstem nuclei are located in the brachial motor column (orange)

A

Motor nucleus of V (V)
Facial nucleus (VII)
Nucleus ambiguus (IX and X)
Spinal Accessory nucleus in sp cd (XI)

25
Q

Visceral motor (yellow) location

A

most lateral

26
Q

Visceral motor (yellow) funx

A

Preganglionic parasympathetic innervation to cardiac m., smooth m., and glands

27
Q

Visceral motor (yellow) brainstem nuclei

A

Edinger-Wesphal (III)
Salivatory (VII)
Inferior Salivatory (IX)
Dorsal motor of nuclues X (X)

28
Q

Visceral Sensory (green) is located

A

most medial for sensory

29
Q

Functions of Visceral sensory:

A

Special-taste

General- control of cardiorespiratory and digestive functions

30
Q

Visceral Sensory involve in taste has what nuclei

A

Rostral nucleus solitarius (VII, IX, X)

31
Q

Visceral sensory involved in control of cardiorepsiratory and digestive functions has what nuclei

A

Caudal nucleus solitarious (IX and X)

32
Q

Somatic sensory located

A

more laterally then visceral sensory

33
Q

Functions of somatic sensory

A

convey touch, pain, temp, position, vibration from skin, muslces and joints

34
Q

Somatic sensory has what brainstem nuclei

A

Trigeminal nuclei (V, VII, IX, and X)

35
Q

Special sensory (purple) located

A

most laterally of all

36
Q

Special sensory column fnx

A

Hearing and balance

37
Q

Special sensory for hearing and Balance has what brainstem nuclei

A

cochlear nucleus VIII

Vestibular nucleus VIII

38
Q

The PCA and superior cerebellar artery supplies:

A

lateral aspects of midbrain including corticospinal tract

39
Q

Occulsion of PCA causes

A

Weber syndrome

40
Q

Blood supply to lateral aspects of midbrain including corticospinal tract

A

PCA and superior cerebellar artery

41
Q

The basilar artery and posterior communicating artery supplies;

A

the medial aspect of the mibrain

42
Q

supplies the medial aspect of the mibrain

A

Basilar artery and PCA

43
Q

The ______artery supplies the medial aspect of midbrain

A

Basilar

44
Q

The superior cerebellar artery supplies the

A

lateral aspect of pons (including middle and superior cerebellar peduncles)

45
Q

Occulsion of superior cerebellar artery causes

A

Lateral pontine syndrome

46
Q

Penetrating branches of ______ supply medial pons including pontine nuclei, medial lemniscuse and cotricospinal tract

A

Basilar Artery

47
Q

Occlusion of Basilar artery:

A

medial pontine syndromes

48
Q

What supplies the pontine tegmentum and dorsolateral quadrant of the pons

A

AICA (long circumferential branches off basilar)

Superior Cerebellar Artery

49
Q

Occulsion of the AICA results in

A

lateral pontine syndrome

50
Q

What supplies the lateral aspect of the rostal medulla

A

Vertebral artery and PICA

51
Q

Occlusion of vertebral artery and PICA result in

A

Lateral medullary syndrom of Wallenburg

52
Q

what supplies medial aspect of rostral medulla including corticospinal tract

A

the Vertebral Artery (anterior spinal a. and penetrating branches)

53
Q

Occulsion of Vertebral artery at the anterior spinal artery and penetrating branches results in

A

medial medullary syndrome

54
Q

what supplies the lateral aspect of caudal medulla

A

Posterior spinal artery

55
Q

What supplies the medial apsects of the caudal medulla including corticospinal tract (medullary pyramid)

A

Anterior spinal artery

Med Neuro Block 3 (9 decks)

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