Part 1 (Orbit & Eye)

Question 1

Enumerate 5 layers of eyelid (from superficial to deep) :

Answer 1

Skin
Subcutaneous tissue
Orbicularis oculi muscle
Tarsus
Conjunctiva

Question 2

Name the muscle present in the eyelid :

Answer 2

Orbicularis oculi

Question 3

Name the supply & action of orbicularis oculi muscle :

Answer 3

supplied by: Facial nerve
action: Closes the eyelid

Question 4

Name the dense palate of fibrous tissues in the eyelid :

Answer 4

Tarsus

Question 5

Name the clear membrane that lines the eyelid :

Answer 5

Conjunctiva

Question 6

Enumerate 5 contents of the orbit :

Answer 6

Eye ball
Extra-ocular muscles
Blood vessels
Nerves
Lacrimal gland

Question 7

Name the extra-ocular which elevates the upper eyelid :

Answer 7

Levator palpebrae superiors

Question 8

Name the extra-ocular muscles which move the eye :

Answer 8

Four Recti & Two Oblique muscles

Question 9

Name the artery which supplies the orbit :

Answer 9

Ophthalmic artery (branch from ICA)

Question 10

Name the veins draining the orbit :

Answer 10

Ophthalmic veins (drain into Cavernous sinus)

Question 11

Give nerve supply of the orbit ;
Special sensory :
General sensory :
3 Motor :

Answer 11

special: Optic Nerve
general: Ophthalmic Nerve
motor: Oculomotor, Trochlear, Abducent Nerve

Question 12

Enumerate 3 parts of the lacrimal apparatus :

Answer 12

Lacrimal gland, Lacrimal sac, Nasolacrimal duct