Stuff Flashcards
What does the lacrimal nerve innervate?
Lacrimal gland
Lateral conj
Lateral part of upper lid
The lacrimal nerve is a branch of what nerve?
V1 (ophthalmic branch of the trigeminal nerve)
What are the 2 branches of V2?
Infraorbital nerve
Zygomatic nerve
Which branch of V2 innervates lateral structures, zygomatic or infraorbital?
Zygomatic
Which nerve innervates the lateral conj and the lateral part of the upper eyelid?
Lacrimal nerve (ophthalmic branch of trigeminal - V1)
What nerve innervates the lateral part of the lower eyelid?
Zygomatic nerve (Branch of V2)
A palsy of which of the following muscles will cause a patient to tilt their head to the side opposite the palsy?
CN IV - head tilt to opposite side of the palsy, but to the same side of the nuclear lesion
What is the physiological origin of the superior oblique?
Trochlea
What is the anatomical origin of the superior oblique?
Lesser wing of the sphenoid and common tendinous ring (annulus of Zinn)
What innervates the muscles of mastication?
V3 - mandibular branch of trigeminal
What 4 major things does CN VII control?
Muscles of facial expression
Closes eyes
Lacrimation
Dampening of sound
Do the fibers of the superior rectus decussate?
Yes
Which of the following regions of the lens has the most immature fibers?
Cortex - it continues to grow throughout life
What is a remnant of the hyaloid artery left on the lens called?
Mittendorf dot
What is a remnant of the hyaloid artery left on the optic disc called?
Bergmeister’s papillae