CN Nuclei

Question 1

spinal cord ends at

Answer 1

l2

Question 2

decorticate posturing

Answer 2

spastic paralysis with hyperflexion of the upper limbs

Question 3

what is the only cn to cross the midline and exit posteriorly

Answer 3

trochlear

Question 4

where is the hypoglossal nuclei

Answer 4

medulla in midlien

Question 5

lumbar plexus

Answer 5

l1-4

Question 6

which cn have nucleus ambiguous

Answer 6

9 and 10

Question 7

what can cause decorticate posturing

Answer 7

cva in IC - cst affected

Question 8

cerebellar cortex

Answer 8

molecular o purkinjue m granule I

Question 9

what are the 4 components of the vagus nerve

Answer 9

solitary - taste nucleus ambiguous - motor dorsal motor nucleus - parasympathetic spinal trigeminal nucleus

Question 10

where are the segmental arteries

Answer 10

off intercostals

Question 11

which nuclei collects info of pain from dura

Answer 11

spinal trigeminal nuclei of cn 10

Question 12

what is the function of the retic formaton

Answer 12

cn reflexes pain respiration sleep activate the cerebral cortex

Question 13

what is decerebrate posturing

Answer 13

rigidity and paraplegia in extensoin

Question 14

cn4 nuclei of origin

Answer 14

inferior colliculus

Question 15

what can cause decerebrate posturing

Answer 15

vestibulospinal tract

Question 16

what nerve supplies the special sensory to the anterior 2/3 of tongue

Answer 16

chorda tympani of facial

Question 17

what muslces does the hypoglossal supply?

Answer 17

genioglossus hypoglossus styloglossus intrinsic tongue muscles

Question 18

cn6 nuclei of origin

Answer 18

pons

Question 19

which cn have the s/I salivary nuclei

Answer 19

cn 7 9

Question 20

sensory to epiglottis

Answer 20

10

Question 21

what is the only sensory modality not to synapse in the thalamus

Answer 21

cn 1

Question 22

describe the facial nuclei

Answer 22

split into 3 components all of which are in the pons

Question 23

whata re the main trigeminal sensory nuclei

Answer 23

mesencephalic nucleus - proprioceptive info from chewing pontine trigeminal nucleus - discriminative touch and vibration spinal nucleus - pain and temperature ventral trigeminothalamic tract - bilateral rep of touch and vibration

Question 24

what is the only site in the cns where the primary afferent neurons are in the cns

Answer 24

mesencephalic nucleus

Question 25

cervical plexus

Answer 25

c1-4

Question 26

ependymal cells

Answer 26

ciliated columnar

Question 27

layers of scalp

Answer 27

skin connective tissue aponeurosis loose connective tissue periosteum

Question 28

cn3 nuclei of origin

Answer 28

superior colliculus

Question 29

what are the 4 componenets of the glossopharyngeal

Answer 29

solitary nucleus - taste spinal trigeminal inferior salivatory nucleus - parasympathetic nucleus ambiguous - stylopharyngeus

Question 30

brachial plexus

Answer 30

c5-t1

Question 31

which cn have the solitary nucleus

Answer 31

7 9 10

Question 32

what are two nuclei involved with the facial nerve

Answer 32

solitary and salivary nuclei

Question 33

which nerve supplies sensory to anterior 2/3 of tongue

Answer 33

v3 (lingual nerve)

Question 34

which nerve supplies sensory to posterior 2/3 pf tongue

Answer 34

9

Question 35

right recurrent laryngeal loops under

Answer 35

right subclavian

Question 36

what is immediately at the pons

Answer 36

the floor of the 4th ventricle

Question 37

carotid sinus / body nerve supply

Answer 37

9

Question 38

sacral plexus

Answer 38

l5-s4

Question 39

which fibres loop around the abducens nucleus

Answer 39

facial

Question 40

left recurrent largyngeal loops inder

Answer 40

arch of aorta

Question 41

subarahcinoid space ends at

Answer 41

s2

Question 42

aortic arch and viscera supplied by

Answer 42

10

Question 43

which nuceli is for parasympathetic efferents of 3 7 9 10

Answer 43

hypothalamic nuclei

Question 44

where are all the glossopharyngeal nuclei located

Answer 44

upper medulla

Question 45

where are the racidualr aretries

Answer 45

roots