Cranial Nerve XI and XII

Question 1

2 parts of CN XI

Answer 1

cranial portion and spinal portion

Question 2

neurons of spinal portion of CN XI arise from

Answer 2

ventral horn of spinal cord

Question 3

neurons of spinal portion of CN XI ascend through __ and exit through __

Answer 3

ascend through foramen magnum

descend through jugular foramen

Question 4

spinal portion of CN XI supply these muscles

Answer 4

trapezius and SCM

Question 5

CN XI has this primary function (sensory or motor)

Answer 5

motor

Question 6

CN XII is motor to this area

Answer 6

motor to the tongue

Question 7

CN XII fibers originate here

Answer 7

in the hypoglossal nuclei

Question 8

CN XII fibers emerge here

Answer 8

at the bottom of the brain stem

Question 9

the cardinal finding in CN XII disease

Answer 9

paralysis of the tongue

Question 10

this type of lesion of CN XII reveals slight speaking and chewing difficulties temporarily

Answer 10

unilateral supranuclear lesion

Question 11

this type of lesion of CN XII reveals long term problems with glossal function

Answer 11

bilateral cerebral lesion

Question 12

with CN XII if there is a lesion when the patient sticks out the tongue it deviates to which side?

Answer 12

the side of the lesion

Question 13

with CN XII if there is a lesion when the patient pushes tongue into cheek it will be weak on which side?

Answer 13

the side opposite the lesion

Question 14

CN XI travels in this foramen

Answer 14

jugular foramen

Question 15

CN XII travels in this foramen

Answer 15

hypoglossal foramen