What are the extraocular muscles?

Extraocular muscles are found near each eye that are necessary to check eye movements. Six muscles are responsible for the different movements of both eyes. They are side, media, lower and superior rectus and lower and superior oblique muscles. Each of these extraocular muscles has specific functions that allow each eye to move with certain directions.

Medial rectus directs every eye to move towards the nose. This movement is called aduction, which means that the movement is directed inward or towards the nose. On the other hand, the side rectus performs the opposite action. He controls every eye from his nose and moves it out. The kidnapping is a term that is often used to move the outer eye. It also helps to turn the top of each eye in the direction or IntoSion. The lower rectus muscle performs the opposite movements, such as mostly to direct the eye towards the floor or depression, and also rotates the upper part of each eye from the nose or improvements. Both extraocular muscles also help in adoptionand.

The excellent oblique muscle is primarily responsible for the eye intotor. Some of her actions include depression and kidnapping eye movements. The lower oblique muscle primarily performs the expansion of each eye. Other events include altitude and kidnapping.

Each of these extraocular muscles is stimulated by the cranial nerves. The oculomotor nerves innervate the media rectus, the lower rectus, the superior rectus and the lower oblique muscles. Abductions stimulates lateral rectus, while the trochlear nerve affects the excellent oblique muscle of the eyes. Injuries to any nicnervy can cause paralysis or palsy related extraocular muscles. The most commonly observed in cases of extraocular muscle paralysis is double vision or diplopia.

The central nervous system coordinates the movements of both eyes, allowing them to look in the same direction. When the left eye moves outwards, the right eye usually followstowards the nose. Eye movement in the same direction is called version . Vergence is eye movements that follow the opposite direction, for example in convergence where both eyes point to the nose.