Superior rectus muscle
Interactive Video
•
Health Sciences, Biology
•
University - Vocational training
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
The video tutorial explores the superior rectus muscle, one of the six extraocular muscles responsible for eye movement. It details the muscle's actions, including elevation, intorsion, and adduction, and explains how these actions vary during abduction and adduction of the eye. The anatomy of the muscle is covered, highlighting its origin from the annulus of Zinn and its insertion on the anterior superior surface of the eye. The tutorial also discusses the muscle's blood supply from the anterior ciliary arteries and its innervation by the superior branch of the oculomotor nerve. Clinical relevance is noted, particularly in cases of severe orbital trauma.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Who was the annulus of Zinn named after and what was his contribution to the study of the eye?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the blood supply to the superior rectus muscle?
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