Which of the following is not a voluntary extraocular muscle
High-Yield Explanation
Voluntary Muscles:
1. Four Recti ⇒
→ Superior rectus.
→ Inferior rectus.
→ Medial rectus.
→ Lateral rectus.
2. Two obliques ⇒
→ Superior oblique.
→ Inferior oblique.
3. Levator palpebrae superioris ⇒ Elevates the upper eyelid.
Involuntary Muscles:
1. Superior tarsal muscle ⇒ Elevates upper eyelid.
2. Inferior tarsal muscle ⇒ Depresses lower eyelid.
3. Orbitalis muscle.