Trochlear nerve

Question 1

nuclei of the trochlear nerve

Answer 1

trochlear nucleus

Question 2

location and function of the trochlear nucleus

Answer 2

• lower part of mid brain level of inferior colliculus

- somatomotor

Question 3

origin of the trochlear nerve

Answer 3

origin is the midbrain below the cerebral aquaduct fiber decussate in the superior mudullary velum
-emerge from the midbrain at the side of the frenulum

Question 4

brain exit of the trochlear nerve

Answer 4

below inferior colliculi on both sides of the frenululm of the superior medullary velum *dorsal aspect of the brain

Question 5

subarachnoidal exit of the trochlear nerve

Answer 5

• quadrigiminal cistern

- ambient cistern

Question 6

dura penetration of the trochlear nerve

Answer 6

-cavernous sinus lateral wall

Question 7

skull exit of the trochlear nerve

Answer 7

superior orbital fissure

Question 8

pathway of the trochlear nerve

Answer 8

enters the SOF in the lateral section
together with the
-opthalmic vein
-rectus lateral muscle

Question 9

what does the trochlear nerve supply

Answer 9

superior oblique muscle