What is eye elevation?

Upward rotation of an eye. It is accomplished by the superior rectus, inferior oblique, lateral rectus (very slightly) and medial rectus (very slightly) muscles. It can be produced voluntarily or by using base-down prisms.

What is tertiary position of gaze?

Secondary positions are up, down, right, and left gaze. These are achieved by pure rotations about the horizontal (x) or vertical (z) axes. Tertiary positions are oblique positions: up and right, up and left, down and right, and down and left [ 4 ].

What is adduction of the eye?

Contraction of the muscles produce movement of the eyes within the orbit. Contraction of the medial rectus pulls the eye towards the nose (adduction or medial movement). Contraction of the lateral rectus pulls the eye away from the nose (abduction or lateral movement).

What is the synergist muscle of right SR?

For example, in abduction of the right eye, the right lateral rectus muscle is the agonist; the right superior and inferior oblique muscles are the synergists; and the right medial, superior, and inferior recti are the antagonists.

Which cranial nerves are responsible for Eye Movement?

Cranial nerve 3, also called the oculomotor nerve, has the biggest job of the nerves that control eye movement.

What are the nerve supply of the eye?

Six cranial nerves innervate motor, sensory, and autonomic structures in the eyes. The six cranial nerves are the optic nerve (CN II), oculomotor nerve (CN III), trochlear nerve (CN IV), trigeminal nerve (CN V), abducens nerve (CN VI), and facial nerve (CN VII).

What muscle moves the eye to the left?

Medial Rectus Lateral Rectus
Sherrington’s Law