Eyes (85-90)

Question 1

Where are the nuclei of the occulomotor and trochlear nerves located?;

Answer 1

Midbrain

Question 2

Name two key features in a patient with trochlear nerve palsy;

Answer 2

Unable to look down. Eye extorted (up and out) so patient tilts head. Diplopia worse on down gaze.

Question 3

What structures pass through the internal acoustic meatus?;

Answer 3

(6 structures) 5 nerves-Facial nerve (CN VII), Vestibular nerve, Vestibular ganglion, Cochlear nerve, Nervus intermedius. 1 artery- labyrinthine artery (branch of AICA or basillar),

Question 4

Name the branches of the facial nerve before it exits the stylomastoid foramen;

Answer 4

Greater petrosal nerve, Nerve to stapedius, Chorda Tympani

Question 5

Name the extracranial branches of the facial nerve (after it exits the stylomastoid foramen) before it enters the parotid gland;

Answer 5

Posterior auricular nerve, Nerve to digastric, Nerve to stylohyoid

Question 6

Name the branches of the facial nerve once it traverses through the parotid gland;

Answer 6

Terminal motor branches [Two Zebras Bit My Coccyx]- Temporal, Zygomatic, Buccal, Marginal Mandibular, Cervical