Procedure.
Remove the eyelids and nictitating membrane to expose the eye-ball and its muscles.
The eye muscles are inserted into the eye-ball in two groups.
Note the following six eye muscles :
(1) Superior rectu~. Inserted on the dorsal surface of the eye-ball.
(2) Inferior rectus. Inserted on the ventral surface of the eye-ball.
(3) Anterior rectus. Inserted on the antt'rior surface of the eye-ball.
(4) Posterior rectus. Inserted on the posterior surface of the: eye-ball.
(5) Superior oblique. Inserted on the dorsal surface of the eye-ball.
(6) Inferior oblique. Inserted on the ventral surface of eye-ball. Optic peduncle. It is a cartilaginous stalk holding eye in the orbit.
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