THE EYE

Question 1

eye

Answer 1

eyeball+ optic nerve

Question 2

orbit

Answer 2

bony pyramidal cavity enclosing eyeball and its accessory appendages

Question 3

orbital region

Answer 3

orbit+ eyeball+upper and lower eyelids+lacrimal apparatus

Question 4

the medial walls of the two orbits are separated by

Answer 4

the ethmoidal sinuses and the upper part of nasal cavity

Question 5

orbit lateral walls are approximately at

Answer 5

90 degree angle

Question 6

the axes of the orbits (orbital axes) diverge at approximately

Answer 6

45

Question 7

boundaries of the orbit

Answer 7

• Sup. (roof): orbital part of Frontal bone & Lesser wing Sphenoid bone
• Lat: frontal process of Zygomatic bone & Greater wing Sphenoid bone
• Inf. (floor): Maxilla, zygoma, orbital process Palatine bone
• Med.: Body of sphenoid, orbital plate ethmoid, lacrimal bone & maxilla

 Base: reinforced orbital margin surrounds orbital opening

Apex: optic canal in lesser wing of sphenoid bone

Question 8

The bones of the orbit are lined

by

Answer 8

periorbital