inferior rectus
Noun: * The extraocular muscle responsible for depressing and adducting the eyeball: The inferior rectus is one of the six muscles that control the movements of the eye. Its primary function is to pull the eye downward (depression). A secondary function is to rotate the eye inward, toward the nose (adduction).
The term "inferior rectus" is a specific anatomical term. It is used in medical, anatomical, and ophthalmological contexts to precisely identify this particular eye muscle. * The surgeon carefully isolated the inferior rectus muscle during the procedure. * Weakness in the inferior rectus can cause difficulty looking downward. * The nerve supply to the inferior rectus is provided by the oculomotor nerve.
- Inferior rectus palsy: A condition denoting paralysis or weakness of the inferior rectus muscle, leading to limited downward gaze and often causing double vision (diplopia).
- The patient's head trauma resulted in a partial inferior rectus palsy.
- Inferior rectus muscle: A fuller, more descriptive term with the same meaning.
- IR: A common medical abbreviation used in clinical notes and diagrams.
- Rectus muscles (of the eye): The group of four straight muscles (superior, inferior, medial, lateral rectus) that primarily move the eye up, down, and side-to-side.
- Depressor muscle of the eye: A descriptive synonym highlighting its primary action. (Note: This is less precise and not standard anatomical terminology.)
- Superior rectus: The ocular muscle whose contraction turns the eyeball upward.
- Medial rectus: The ocular muscle whose contraction turns the eyeball inward (adduction).
- Lateral rectus: The ocular muscle whose contraction turns the eyeball outward (abduction).
- Extraocular muscles: The collective term for the six muscles that control eye movement.
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the ocular muscle whose contraction turns the eyeball down and medially
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