Superior oblique
Superior Oblique
The Superior Oblique (pronunciation: su·pe·ri·or o·blique /səˈpirēər əˈblēk/) is a Fusiform muscle in the Human eye that enables the downward and lateral movement of the eye. It is one of the six Extraocular muscles that control eye movements.
Etymology
The term 'Superior Oblique' is derived from Latin, where 'superior' means 'higher' and 'oblique' refers to 'slanting'. This is in reference to the muscle's position and direction in the eye.
Function
The Superior Oblique muscle primarily helps in the downward movement (depression) and lateral movement (abduction) of the eye. It also contributes to the inward rotation (intorsion) of the eye. The muscle is innervated by the Trochlear nerve, the fourth cranial nerve.
Related Terms
- Trochlear nerve: The nerve that innervates the Superior Oblique muscle.
- Extraocular muscles: The group of muscles that control the movements of the eye.
- Fusiform muscle: A type of muscle shape that is wide in the middle and tapers at both ends. The Superior Oblique is an example of a fusiform muscle.
- Depression (eye): The downward movement of the eye, a function of the Superior Oblique muscle.
- Abduction (eye): The lateral movement of the eye, a function of the Superior Oblique muscle.
- Intorsion: The inward rotation of the eye, a function of the Superior Oblique muscle.
External links
- Medical encyclopedia article on Superior oblique
- Wikipedia's article - Superior oblique
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