Extrinsic muscles of the hand originate in the antebrachium (forearm).
The extrensic muscles of the hand originate from the lateral epicondyle of the humerous
They originate in parents, teachers, society
When hammering a nail a person uses the wrist muscle, triceps muscle, bicep muscle and hand muscles which are called extrinsic, thinner eminence and intrinsic muscles.
Inferior Oblique Human & Physiology Lab Manual, Cat Edition 10th Edition p365
extrinsic muscles are strained
latissimus dorsi & pectoralis major
strabismus
lateral epicondyle of the humerus
The Medial Rectus.
lateral rectus
yes true
The muscle that circles underneath the eyeball is the inferior oblique. The purpose of the inferior oblique is to move the eye upward.