cranial nerves| originates from midbrain

What is the CN III Oculomotor Nerve

This is a MOTOR cranial nerve

CN III Oculomotor Nerve innervates ?

4 out of the 6 extrinsic (outside) eye muscles that move the eyeball

Inferior oblique, medial rectus, inferior rectus, and superior rectus muscles

whats its orgain and passage of this nerve?

Origin: This nerve originates from the medial and anterior side of the midbrain, just above the pons

Passage: It's the 1st of 4 cranial nerves to pass through the superior orbital fissure

find the CN III Oculomotor Nerve

CN III OCULOMOTOR NERVE

what is a CN IV Trochlear Nerve

is a SMALL motor nerve

CN IV Trochlear Nerve innervates ?

1 out of 6 extrinsic eye muscles that moves the eyeball called superior oblique muscle, which is responsible for rotating the eyeball towards the nose

what is its orgins and passage

• Origin: It originates from the posteroior side of the midbrain and exits laterally just above the pons; take note that this is the only cranial nerve that originates posteriorly 

• Passage: It's the 2nd of 4 cranial nerves to pass through the superior orbital fissure

where is this nerve located

CN IV TROCHLEAR NERVE