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Figure 1.5 Superior rectus action. The course of the superior rectus is at an angle of 23 to the medial wall of the orbit. Actions in adduction are principally intorsion and adduction; in the primary position, actions are elevation, intorsion and adduction; action in abduction is principally elevation. Superior oblique muscle
3 Αυγ 2023 · The superior rectus has a primary action of elevating the eye, causing the cornea to move superiorly. The superior rectus originates from the annulus of Zinn and courses anteriorly and superiorly over the globe, making an angle of 23 degrees with the visual axis.
28 Σεπ 2024 · The superior rectus muscle is one of the six extraocular muscles responsible for controlling eye movement, specifically enabling upward movement. It is one of the four rectus muscles that attach directly to the eyeball and is innervated by the oculomotor nerve (cranial nerve III).
3 Νοε 2023 · Superior rectus in an extraocular muscle that produces the movements of the eye. Learn its anatomy and function at Kenhub!
23 Αυγ 2016 · The primary action of the superior rectus muscle is elevation, which is at its maximum when the eye is abducted 23° in the line of its insertion. Subsidiary actions are adduction and intorsion, which increase as the eye is adducted or rotated medially.
30 Απρ 2020 · The superior rectus directs the eye upward (elevates it), while the inferior rectus directs the eye downward (depresses it), and the two are each muscle's primary action, respectively. Because of their location and primary action, these muscles are referred to as “the vertical rectus muscles” [4–6].
9 Ιουλ 2019 · Superior Rectus. The superior rectus muscle is loosely attached to the levator palpebrae superioris muscle. When the eye is hypotropic, a pseudoptosis may be present because the upper eyelid will follow the superior rectus muscle. With resection of the superior rectus muscle, the eyelid may be pulled downward (typically is not retracted upward ...
