a. artificial airway
b. neck extension
c. upright position
d. anticholineesterases
12q: anterior and posterior stability of eyeball is due to all except
a. superior rectus
b. superior oblique
c. suspensory ligament of eye
d. orbital fat
13q: maximum refractive index is for
a. cornea
b. anterior part of lens
c. centroid of lens
d. posterior part of lens
14q: thinnest pat of sclera
a. equator
b. limbus
c. in front of rectus
d. few cms behind origin of rectus
15q: what is the tolazoline ?
a. vasoconstrictor used in rx of gastrooesophageal varices
b. vasodilator
c. new contrast medium
d. osmotic agent
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