What are the 6 extrinsic eye muscles and functions?
Terms in this set (6)
- Lateral Rectus. Moves eye laterally, VI Abducens.
- Medial Rectus. Moves eye medially, III Occulomotor.
- Superir Rectus. Elevates the eye, Turns eye medially. III Occulomotor.
- Inferior Rectus. Depresses the eye, Turns the eye medially.
- Inferior Oblique. Elevates the eye.
- Superior Oblique. Depresses eye.
Where are the muscles that control eye movement?
Muscles. Six extraocular muscles facilitate eye movement. These muscles arise from the common tendinous ring in the orbit, the eye cavity, and attach to the eyeball. The six muscles are the lateral, medial, inferior and superior rectus muscles, and the inferior and superior oblique muscles.
What are the six extrinsic muscles that move the human eye?
Superior rectus, Inferior rectus, Medial rectus, Lateral rectus, Superior oblique, Inferior oblique.
What muscles control the eye movement and hold the eye in place in the socket?
EXTRAOCULAR MUSCLES: There are six muscles that attach to the eye to move it. These muscles originate in the eye socket (orbit) and work to move the eye up, down, side to side, and rotate the eye. The superior rectus is an extraocular muscle that attaches to the top of the eye. It moves the eye upward.
What are the intrinsic muscles of the eyes?
The intrinsic eye muscles include the ciliary muscle, iris sphincter and radial pupil dilator muscles.
How many muscles control your eye?
For each eye, six muscles work together to control eye position and movement. Two extraocular muscles, the medial rectus and lateral rectus, work together to control horizontal eye movements (Figure 8.1, left). Contraction of the medial rectus pulls the eye towards the nose (adduction or medial movement).
What type of muscles move the eye?
There are six extraocular muscles that control all of the movement of the eye. These muscles are the superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique, and inferior oblique. The muscles of the eye are designed to stabilize and move both eyes.
What do the 6 eye muscles do?
EXTRAOCULAR MUSCLES: There are six muscles that attach to the eye to move it. These muscles originate in the eye socket (orbit) and work to move the eye up, down, side to side, and rotate the eye. The superior rectus is an extraocular muscle that attaches to the top of the eye.
How many muscles are responsible for eye movement?
The contributions of the six extraocular muscles to vertical and horizontal eye movements. Horizontal movements are mediated by the medial and lateral rectus muscles, while vertical movements are mediated by the superior and inferior rectus and the superior (more…)
How many ocular muscles control the movement of the eye?
What are the muscles of the eye and their functions?
There are six muscles responsible for the different movements of both eyes. They are the lateral, medial, inferior, and superior rectus, and the inferior and superior oblique muscles. Each one of these extraocular muscles has specific functions which allow each eye to move in certain directions.
How many muscles control the movement of the eyeball?
Anatomical terms of muscle. [edit on Wikidata] The extraocular muscles are the six muscles that control movement of the eye and one muscle that controls eyelid elevation ( levator palpebrae ). The actions of the six muscles responsible for eye movement depend on the position of the eye at the time of muscle contraction.
Which kind of muscles controls the movement in your eyelids?
Eyelid movement is controlled primarily by three muscles, the most important of which is the levator muscle. Anything that affects these muscles can also affect how your eyelid works.
What controls your eye muscles?
The Rectus muscles are primarily responsible for the movement of the eyeballs in the four cardinal directions: up, down, left and right. The pair of Oblique muscles are responsible for controlling the adjustments involved in counteracting head movements, in other words being able to keep your focus on something whilst your head moves.