intrinsic eye muscles

The muscles of the hand can be divided into an extrinsic and intrinsic group. A sphincter is a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.

Retina Functions Of The Retina Muscles Of The Eye Muscle Anatomy Anatomy And Physiology The Retina

The muscles of the posterior compartment are separated into a superficial and deep layer.

. Muscles of eye-Muscles of eye- Extrinsic muscles muscles located outside of the eye that control certain eye movements such as moving the eyeball from side to side or rolling the eyes 10. The superior and inferior oblique muscles make an angle of. There are over 60 types in the human body some microscopically small in particular the millions of precapillary sphincters. Sphincters are found in many animals.

Sphincters relax at death often releasing. The extraocular muscles rotate the eyeball around vertical horizontal and antero-posterior axes. These muscles are innervated by the radial nerve and are known as the extensor muscles due to their general action of extending the wrist and the digits. The extrinsic group.

Extraocular muscles other than the medial rectus and lateral rectus have more than one action due to the angle they make with the optical axis of the eye while inserting into the eyeball. Intrinsic muscles muscles located inside the eye that help hold the lens in place modify its shape 11.

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