Eye is a sensory organ that allows an organism to perceive visual information. An eye detects light and convert it into electro-chemical impulses in neurons.

Muscles are soft tissues in organisms that can contract and relax to produce movement and maintain posture.

There are 7 extraocular muscles. Extraocular muscles are muscles that helps eyes and eyelids to move.

There are 6 extraocular muscles that involve in eye movement. Eye movement refers to the voluntary or involuntary motions of the eyes, playing a crucial role in vision, attention, and memory.

The 6 extraocular muscles are divided into 2 groups :

• Recti Muscles

• Oblique Muscles.

The recti muscles of the eye are responsible for controlling the movements of the eyeball. The oblique muscles of the eye play a crucial role in eye movement and maintaining visual stability.

There are 4 Recti Muscles and 2 Oblique Muscles.

Recti Muscles:

• Superior rectus: Moves the eye upward. 

• Inferior rectus: Moves the eye downward. 

• Medial rectus: Moves the eye inward (towards the nose). 

• Lateral rectus: Moves the eye outward (away from the nose). 

Oblique Muscles:

• Superior oblique: Rotates the eye downward and inward, and also helps with intorsion (rotating the top of the eye inward). 

• Inferior oblique: Elevates the eye and rotates it outward, also known as extortion (rotating the top of the eye outward).