Brain Stem Structure

Question 1

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

Answer 1

the reticular formation

Question 2

help regulate consciousness and constains respiratory CV centers

Answer 2

reticular formation

Question 3

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

Answer 3

conduit

Question 4

Controls voluntary movement of limbs

Answer 4

Corticospinal tract

Question 5

damage to anterior part of brainstem results in a :

Answer 5

motor deficeit

Question 6

transmists sensory info for pain and temp

Answer 6

spinothalamic (lies more lateral)

Question 7

transmists sensory info for touch, vibration, pressure and proprioception

Answer 7

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

Question 8

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

Answer 8

nuclei

Question 9

NS developed from

Answer 9

neural tube

Question 10

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

Answer 10

basal plate

alar plate

Question 11

basal plate and alar plate are seperated by

Answer 11

sulcus limitans

Question 12

brainstem devo is simular to

Answer 12

sp cd devo

Question 13

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

Answer 13

laterally

medially

Question 14

CN nuclie are arranged in

Answer 14

Functional Columns

Question 15

CNs in the midbrain

Answer 15

Optic
Opthalmic
Oculomotor
Trochlear
I-IV

Question 16

CNs in the Pons

Answer 16

Trigeminal 
Abducens
Facial
Vestibulocochlear
V-VIII

Question 17

CNs in the Medulla

Answer 17

Glossopharnygeal
Vagus
Accesory
Hypoglossal
IX-XII

Question 18

CN nuclei are Clusters of Cell Bodies ______ the brainstem

and nuclie are

Answer 18

WITHIN

bilateral

Question 19

Somatic motor (red) is located

Answer 19

Most medial

Question 20

Branchial motor (orange function)

Answer 20

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

Question 21

Somatic motor (red) funx

Answer 21

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

Question 22

What Brainstem nuclei are located in the Somatic Motor column

Answer 22

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

Question 23

Brachial motor are located

Answer 23

second from middle: orange

Question 24

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

Answer 24

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

Question 25

Visceral motor (yellow) location

Answer 25

most lateral

Question 26

Visceral motor (yellow) funx

Answer 26

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

Question 27

Visceral motor (yellow) brainstem nuclei

Answer 27

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

Question 28

Visceral Sensory (green) is located

Answer 28

most medial for sensory

Question 29

Functions of Visceral sensory:

Answer 29

Special-taste | General- control of cardiorespiratory and digestive functions

Question 30

Visceral Sensory involve in taste has what nuclei

Answer 30

Rostral nucleus solitarius (VII, IX, X)

Question 31

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

Answer 31

Caudal nucleus solitarious (IX and X)

Question 32

Somatic sensory located

Answer 32

more laterally then visceral sensory

Question 33

Functions of somatic sensory

Answer 33

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

Question 34

Somatic sensory has what brainstem nuclei

Answer 34

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

Question 35

Special sensory (purple) located

Answer 35

most laterally of all

Question 36

Special sensory column fnx

Answer 36

Hearing and balance

Question 37

Special sensory for hearing and Balance has what brainstem nuclei

Answer 37

cochlear nucleus VIII | Vestibular nucleus VIII

Question 38

The PCA and superior cerebellar artery supplies:

Answer 38

lateral aspects of midbrain including corticospinal tract

Question 39

Occulsion of PCA causes

Answer 39

Weber syndrome

Question 40

Blood supply to lateral aspects of midbrain including corticospinal tract

Answer 40

PCA and superior cerebellar artery

Question 41

The basilar artery and posterior communicating artery supplies;

Answer 41

the medial aspect of the mibrain

Question 42

supplies the medial aspect of the mibrain

Answer 42

Basilar artery and PCA

Question 43

The ______artery supplies the medial aspect of midbrain

Answer 43

Basilar

Question 44

The superior cerebellar artery supplies the

Answer 44

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

Question 45

Occulsion of superior cerebellar artery causes

Answer 45

Lateral pontine syndrome

Question 46

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

Answer 46

Basilar Artery

Question 47

Occlusion of Basilar artery:

Answer 47

medial pontine syndromes

Question 48

What supplies the pontine tegmentum and dorsolateral quadrant of the pons

Answer 48

AICA (long circumferential branches off basilar) | Superior Cerebellar Artery

Question 49

Occulsion of the AICA results in

Answer 49

lateral pontine syndrome

Question 50

What supplies the lateral aspect of the rostal medulla

Answer 50

Vertebral artery and PICA

Question 51

Occlusion of vertebral artery and PICA result in

Answer 51

Lateral medullary syndrom of Wallenburg

Question 52

what supplies medial aspect of rostral medulla including corticospinal tract

Answer 52

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

Question 53

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

Answer 53

medial medullary syndrome

Question 54

what supplies the lateral aspect of caudal medulla

Answer 54

Posterior spinal artery

Question 55

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

Answer 55

Anterior spinal artery