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INI-CET 2019 — Anatomy

Q: Lesion of the marked structure affects all EXCEPT

Superior oblique. ***Superior oblique*** - The **superior oblique** muscle is innervated by the **trochlear nerve (CN IV)**. - A lesion affecting the **oculomotor nerve (CN III)**, which usually controls the marked structure, would therefore **not** affect the superior oblique. *Superior rectus* - The **superior rectus** muscle is innervated by the **oculomotor nerve (CN III)**. - A lesion of the oculomotor nerve would impair its function, leading to difficulty in **elevating** and **adducting** the eye. *Inferior oblique* - The **inferior oblique** muscle is innervated by the **oculomotor nerve (CN III)**. - Damage to this nerve would result in compromised function of the inferior oblique, affecting **extorsion** and **elevation** of the eye. *Medial rectus* - The **medial rectus** muscle is innervated by the **oculomotor nerve (CN III)**. - A lesion of the oculomotor nerve would lead to an inability to perform **adduction** (moving the eye inward). [Practice more Anatomy PYQs on OnCourse]

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All Subjects Anatomy (1)Microbiology (2)Pharmacology (1)Physiology (2)

Lesion of the marked structure affects all EXCEPT

INI-CET 2019 Anatomy PYQs | 1+ Solved MCQs – Oncourse AI