CN s5 examplify

Question 1

which carry parasympathetic fibres?

Answer 1

vagus
glossopharyngeal
facial
oculomotor

Question 2

CN involved in movement of eyeball?

Answer 2

trochlear (superior oblique)
oculomotor
abducens (lateral rectus)

Question 3

which CN pass thru internal acoustic meatus?

Answer 3

facial

vestibulocochlear

Question 4

pupillary light reflex aff/efferent limb

Answer 4

afferent= CN 2 optic
efferent= CN 3

Question 5

which CN run thru cavernous sinus

Answer 5

CN 3
4
6
opthalmic and maxillary of CN 5

Question 6

signs of cavernous sinus thrombosis

Answer 6

ptosis
diplopia
orbital oedema (impaired venous drainage)

Question 7

route of internal carotid artery

Answer 7

up neck within carotid sheath

enters cranial cavity thru carotid canal in petrous part of temporal bone

Question 8

which CN pass thru jugular foramen?

Answer 8

glossopharyngeal
vagus
accessory

Question 9

which CN carries afferent signals from baroreceptors within carotid sinus to brainstem

carotid sinus massage

Answer 9

glossopharyngeal

Question 10

Corneal reflex limbs

Answer 10

afferent= Va ophthalmic division

efferent=facial

Question 11

which cn vulnerable to damage in injuries in neck

Answer 11

ACCESSORY

because of its superficial course through the subcutaneous tissues on the floor of the posterior triangle

Question 12

role of orbiculares oculi

Answer 12

squeeze eyes tight shut