There are three fundamental concepts about EOM anatomy/function you must understand to master all of the EOMs: 1) Attachment on anterior vs. posterior half of eye: The four recti (medial, lateral, inferior, and superior recti) attach on the anterior half of the eye.

Extraocular muscles are the most specialized skeletal muscles in the human body. These are broadly divided into voluntary and involuntary muscles. The voluntary muscles include seven extraocular muscles that control the movements of the eye and eyelids, and are important for binocular single vision.

The extraocular muscles, or extrinsic ocular muscles, are the seven extrinsic muscles of the eye in humans and other animals. [1] . Six of the extraocular muscles, the four recti muscles, and the superior and inferior oblique muscles, control movement of the eye. The other muscle, the levator palpebrae superioris, controls eyelid elevation.

There are six pairs of extraocular muscles responsible for rotating the eyes. Oftentimes they work together, obviating the need to coordinate both eyes independently. This section focuses on the anatomy, movements and innervations of the extraocular muscules.

Dec 22, 2022 · There are seven extraocular muscles – the levator palpebrae superioris, superior rectus, inferior rectus, medial rectus, lateral rectus, inferior oblique and superior oblique. Functionally, they can be divided into two groups: Responsible for eye movement – Recti and oblique muscles.

Feb 12, 2023 · Extraocular muscle function testing examines the function of the eye muscles. A health care provider observes the movement of the eyes in eight specific directions. EOM; Extraocular movement; Ocular motility examination. You are asked to sit or stand with your head up and looking straight ahead.

May 10, 2020 · The extraocular muscles (EOM) are responsible for controlling the movements of the eyeball and upper eyelid. These muscles are also known as the extrinsic eye muscles, distinguishing them from intrinsic eye muscles which are …

Jul 9, 2019 · Extraocular Muscle Origins Orbit, right eye, demonstrating the extraocular muscle insertions. The four rectus muscles originate from the tendinous ring called the Annulus of Zinn, which lies just anterior to the superior orbital fissure which is straddled by the greater and lesser wings of the sphenoid bone.

Extraocular muscles (EOMs) play a crucial role in the precise and coordinated movements of the eyes, which are essential for clear and stable vision. There are six EOMs in each eye: the superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique, and inferior oblique.

Oct 30, 2023 · Extraocular muscles are also referred to as the extrinsic (arising externally) or muscles of the orbit. There are 6 of these extraocular muscles that control eye movement (cows only have 4 of these), and one muscle that controls eyelid elevation.