check ligament

noun

ˈchek- 

1

: alar ligament sense 1

2

: either of two expansions of the sheaths of rectus muscles of the eye each of which probably restrains the activity of the muscle with which it is associated:

a

: an expansion of the sheath of the lateral rectus that is attached to the lacrimal bone

called also lateral check ligament

b

: an expansion of the sheath of the medial rectus that is attached to the zygomatic bone

called also medial check ligament