Muscular System By Dr. Jamal Ahmad

1. Muscles of
EYEBALL

2. • Seven muscles one for eyelid and rest f
or eyeball movement
• Levator palpabrae superioris
• Superior rectus
• Inferior tectus
• Letral rectus
• Medial rectus
• Superior oblique
• Inferior oblique

3. • Levator palpabrae superioris
• Lesser wing of sphenoid bone
• Superior tarsal plate of upper eyeli
d
• Elevate upper eyelid
• Occulomotor nerve

5. •Superior rectus
• Superior part of common tendious r
ing (CTR)
• Superior and anterior aspect of sclera
• Upward movement and assist in ab
duction and medial rotation
•Occulomotor nerve

6. •Inferior rectus
• Inferior part of CTR
• Inferior and anterior part of sclera
• Depress and assist in adduction an
d lateral rotation
•Occulomotor nerve

7. •Medial rectus
• Medial part of CTR
• Anteromedial aspect of sclera
•Adducts
• Occulomotor nerve

8. •Letral rectus
• Letral part of CTR
• Letral aspect of sclera
•Adducts
• Abdusence nerve

9. • Superior oblique
• Body of sphenoid
• Sclera posterior to superior rectus
• Depress abduct and medialy ro
tate.
•Trochlear nerve

10. •Inferior oblique
• Anterior part of orbital floor
• Sclera posterior to letral rectus
• Elevate abduct and letrally rotate
• Occulomotor nerve