Topic 14 nerve supply Flashcards

1
Q

what is the nerve supply of the cornea?

A

Trigeminal nerve (CN V)

Nerve ending is in sub-epithelial region and extend to mid stroma

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2
Q

what is the nerve supply of the uveal tract?

A

Trigeminal nerve (CN V) for all 3 structures of the uveal tract

Oculomotor nerve (CN III) for iris and ciliary body

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3
Q

what is the nerve supply of the sclera?

A

trigeminal nerve (CN V)

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4
Q

what is the nerve supply of the retina?

A
Optic nerve (CN II)
transmits impulses from the retina to the brain
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5
Q

what is the nerve supply of the conjunctiva?

A

Trigeminal nerve (CN V)

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6
Q

what is the nerve supply of the eyelids? ( upper eyelid, lower eyelid, OO muscle, riolan muscle, LPS)

A

Trigeminal nerve (CN V): upper eyelid, lower eyelid

Facial nerve (CN VII ): Orbicularis oculi muscle, Riolan muscle, lower eyelid

Oculomotor nerve (CN III): LPS muscle

Sympathetic branch: Muller’s muscle

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7
Q

what is the nerve supply of the eyebrows?

A

Facial nerve (CN VII)

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8
Q

what is the nerve supply of the lacrimal apparatus?

A

Trigeminal nerve (CN V): Tear secretion by lacrimal gland

Facial nerve (CN VII): Tear drainage

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9
Q

what is the nerve supply of the forehead muscles?

A

Facial nerve (CN VII)

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10
Q

what is the nerve supply of the EOM? 3, SO4,LR6

A

MR: inferior division of oculomotor (CN lll) ‘

LR: abducens nerve (CN Vl)

SR: superior division of oculomotor (CN III)

IR: inferior division of oculomotor (CN lll) ‘

SO: trochlear nerve (CN IV)

IO: inferior division of oculomotor (CN lll) ‘

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11
Q

What are the 6 nerves u gotta know? (OOTTAF) Are they sensory or motor or both?

A
CN 2:  optic nerve (s)
CN 3: oculomotor nerve (m)
CN 4: trochlear nerve (m)
CN 5: trigeminal nerve (both)
CN 6: abducens nerve (m)
CN 7: facial nerve  (both)
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