Anatomy

Question 1

Recurs muscle insertion from cornea

Answer 1

medial rectus 5.6mm
inferior rectus 6.6mm
lateral rectus 7.0 mm
superior rectus 7.8mm

Question 2

What structure passes through the foramen rotundum

Answer 2

Maxillary nerve

Question 3

What structure passes through the foramen ovale

Answer 3

mandibular nerve

accessory meningeal artery

Question 4

What structure passes through the foramen spinosum

Answer 4

Middle meningial artery

Question 5

The styloid foreamen transmits which nerve

Answer 5

Facial nerve

Question 6

Ipsilateral nuclei of cranial nerve 3 controls which muscle?

Answer 6

inferior rectus,
medial rectus,
inferior oblique,
lateral rectus muscles.

Question 7

Contralateral nuclei of cranial nerve 3 controls which muscle?

Answer 7

Superior rectus
Also superior oblique is supplied by contralateral 4th nerve

Question 8

Where does the trigeminal nerve emerge from?

Answer 8

The trigeminal nerve emerges from the brain stem at the junction between the pons and the middle cerebellar peduncle.

It emerges from the brain stem as separate sensory and motor roots

Question 9

The commonest site of scleral rupture following blunt trauma is

Answer 9

in a circumferential arc parallel to the corneal limbus opposite to the impact site

Second, most common is behind the insertion of the rectus muscles

Question 10

Describe the sympathetic pathway from the brain to the eye

Answer 10

Sympathetic pathway:

First order: hypothalamus along the brainstem to synapse in the ciliospinal center of Budge

Second order: centre of Budge to superior cervical ganglion

Third order: superior cervical ganglion, travels along the carotid plexus, branches join the ophthalmic division of the trigeminal nerve and pass through the ciliary ganglion to the nasociliary and short ciliary nerves