Orbital Muscles

Question 1

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

Answer 3

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