Superior Rectus Muscle (Noun)
Meaning
The ocular muscle whose contraction turns the eyeball upward and medially.
Classification
Nouns denoting body parts.
Examples
- The superior rectus muscle originates from the annulus of Zinn and travels along the superior aspect of the orbit before inserting into the sclera of the eyeball.
- Damage to the superior rectus muscle can lead to diplopia and reduced ocular elevation.
- The superior rectus muscle is innervated by the oculomotor nerve, which controls the movement of the muscle.
- The superior rectus muscle works in conjunction with the inferior oblique muscle to rotate the eyeball upward and medially.
- In cases of fourth-nerve palsy, the superior rectus muscle can be used to compensate for the weakness of the superior oblique muscle.