Week 1 - Superior Rectus

Question 1

What is the origin of the superior rectus

Answer 1

The origin of the superior rectus is at the Annulus of Zinn at the apex of the orbit

Question 2

What is the course or pathway of the superior rectus muscle

Answer 2

This muscle starts at the rear of the orbit at Faiq and your list of Zen sort of on the upper part

It runs from the back of the orbit to the top of the eye just under the levator palpebral muscle – both of these muscles are linked

Question 3

Where does this muscle insert

Answer 3

The superior rectus insert in front of the centre of rotation in the front Eye

This muscle doesn’t come straight up the eyeball. It approaches at an angle with the visual access at 23° nasal to optic angle

Question 4

Which nerve supply is this muscle

Answer 4

The superior division of the oculomotor nerve

Question 5

What are the primary and secondary actions of this muscle

Answer 5

The superior rectus in its primary action pulls the eye up as a result of elevation

The secondary action of The superior wrecked this is a duction because the muscle is angled. As it shortens, the eyeball twists towards the nose