Questions and Answers
What are the six extrinsic muscles of the eye?
What is the function of the medial rectus muscle?
Adducts the eye
What is the function of the lateral rectus muscle?
Abducts the eye
What does the inferior rectus muscle do?
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What is the primary function of the superior rectus muscle?
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What does the inferior oblique muscle do?
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What is the function of the superior oblique muscle?
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What is a trochlea in relation to the eye?
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The extrinsic eye muscles are also known as ______ muscles.
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Study Notes
Extrinsic Eye Muscles Overview
- Also known as extraocular muscles, these are responsible for moving the eyes.
- There are a total of six extrinsic muscles that facilitate eye movement.
Six Extrinsic Eye Muscles
- Comprises four rectus muscles and two oblique muscles.
- Rectus Muscles: medial, lateral, inferior, and superior.
- Oblique Muscles: inferior oblique and superior oblique.
Medial Rectus
- Attaches to the anteromedial surface of the eye.
- Function: Pulls the eye medially, a motion known as adduction.
Lateral Rectus
- Responsible for moving the eye laterally.
- Function: Abducts the eye.
Inferior Rectus
- Connects to the anteroinferior part of the eye.
- Functions: Moves the eye inferiorly (depression) and medially (adduction).
Superior Rectus
- Functions include moving the eye superiorly (elevation) and medially (adduction).
Inferior Oblique
- Slants diagonally, allowing for unique movement.
- Functions: Elevates the eye superiorly and abducts laterally.
Superior Oblique
- Positioned to facilitate depression and lateral movement.
- Function: Moves the eye inferiorly (depression) and laterally (abduction).
Trochlea
- A structural feature that attaches to the superior posterior part of the eye, aiding in the movement of the superior oblique muscle.
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Description
Test your knowledge of the extrinsic eye muscles with these flashcards. Learn about the six muscles, their functions, and specific definitions. Perfect for students of anatomy and physiology.
