Orbital Muscles

Question 1

What are the common characteristics in origin and insertion of all rectus extra ocular muscles?

Answer 1

They all originate from a common annular tendon in the orbit.
They all insert into the sclera in front of the coronal equator of the eyeball.

Question 2

What is the common characteristic regarding the insertion of both oblique extra ocular muscles?

Answer 2

Both insert onto sclera on the lateral margin of the eyeball behind the coronal equator.

Question 3

What is the common characteristic concerning the insertion of the superior and inferior rectus extra ocular muscles?

Answer 3

They insert onto the sclera of the eyeball in front of the coronal equator and are displaced slightly medially.