EXTRAOCULAR MUSCLES
-
- Voluntary Muscles
- Orbitalis; orbital muscle
- Superior rectus
- Inferior rectus
- Medial rectus
- Lateral rectus
- Check ligament of lateral rectus muscle
- Common tendinous ring; common anular tendon
- Superior oblique
- Trochlea
- Tendinous sheath of superior oblique
- Inferior oblique
- Levator palpebrae superioris
- Superficial layer
- Deep layer
- Involuntary muscles
- Movements of eyeball
- Around a transverse axis
- upward rotation or elevation (33 degrees )
- Downwards rotation or depression ( 33 degrees)
- Around a Vertical Axis
- Medial rotation or adduction ( 50 degrees )
- Lateral rotation or abduction ( 50 degrees )
- Around an anteroposterior axis
- Intorsion
- Extorsion
- Single or pure movements
- upward rotation or elevation
- superior rectus and inferior oblique
- Downward rotation or depression
- Inferior rectus and superior oblique
- Medial rotation or adduction
- Medial rectus , superior rectus and inferior rectus
- Lateral rotation or abduction
- Lateral rectus , superior oblique and inferior oblique
- Intorsion
- superior oblique and superior rectus
- Extorsion
- inferior oblique and inferior rectus
- Combined movements
- Coordinated movements
- Conjugate ocular movements
- Gaze
Discussion