Primary action of superior oblique: March 2013 (a)
Ans. B i.e. Intorsion Extraocular muscles Intoors of the eye: Superior oblique & Superior rectus Action of superior oblique: Abduction, Inoion & Depression Nerve supply of superior oblique: Trochlear (4th cranial nerve) Levator palpebrae superioris is supplied by: 3rd cranial nerve (oculomotor) Muscle attached to posterior tarsal margin: Muller's muscle
Adduction
Intorsion
Abduction
Extorsion