Difference between revisions of "Inner Pelvic Muscles - Horse Anatomy"
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| − | The inner pelvic muscles are small and lie close to the [[Joints and Ligaments - Horse Anatomy#Coxafemoral/Hip Joint|coxafemoral (hip) joint]]. They run between the pelvis and trochanteric fossa of the [[Bones and Cartilages - Horse Anatomy#Femur|femur]]. | + | {{OpenPagesTop}} |
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| + | The inner pelvic muscles are small and lie close to the [[Joints and Ligaments - Horse Anatomy#Coxafemoral/Hip Joint|coxafemoral (hip) joint]]. They run between the pelvis and trochanteric fossa of the [[Limb Bones and Cartilages - Horse Anatomy#Femur|femur]]. | ||
'''''Internal Obturator''''' | '''''Internal Obturator''''' | ||
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::Pelvic head - Pelvic symphysis and pelvic aspect of the body of the [[Hindlimb - Anatomy & Physiology#Ilium|ilium]] | ::Pelvic head - Pelvic symphysis and pelvic aspect of the body of the [[Hindlimb - Anatomy & Physiology#Ilium|ilium]] | ||
:'''Insertion''': Trochanteric fossa together with the ''gemellus'' muscle, having passed over the lesser sciatic notch | :'''Insertion''': Trochanteric fossa together with the ''gemellus'' muscle, having passed over the lesser sciatic notch | ||
| − | :'''Action''': Rotates the femur laterally, aids [[Joints and Ligaments - Horse Anatomy#Coxafemoral/Hip Joint|hip]] extension | + | :'''Action''': Rotates the [[Limb Bones and Cartilages - Horse Anatomy#Femur|femur]] laterally, aids [[Joints and Ligaments - Horse Anatomy#Coxafemoral/Hip Joint|hip]] extension |
'''''External Obturator''''' | '''''External Obturator''''' | ||
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:'''Origin''': Ventral surface of pelvis, close to the obturator foramen | :'''Origin''': Ventral surface of pelvis, close to the obturator foramen | ||
:'''Insertion''': Trochanteric fossa | :'''Insertion''': Trochanteric fossa | ||
| − | :'''Action''': Supinates the [[Bones and Cartilages - Horse Anatomy#Femur|femur]] and adducts the limb | + | :'''Action''': Supinates the [[Limb Bones and Cartilages - Horse Anatomy#Femur|femur]] and adducts the limb |
'''''Gemellus''''' | '''''Gemellus''''' | ||
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:'''Action''': Aids lateral rotation of the limb | :'''Action''': Aids lateral rotation of the limb | ||
| − | [[Category: | + | |
| + | {{review}} | ||
| + | {{OpenPages}} | ||
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| + | [[Category:Muscles - Horse Anatomy]] | ||
Latest revision as of 20:13, 9 January 2013
The inner pelvic muscles are small and lie close to the coxafemoral (hip) joint. They run between the pelvis and trochanteric fossa of the femur.
Internal Obturator
- In the horse this muscle has two heads, a small and tendinous pubic head and a larger pelvic head.
- Innervation: Sciatic n.
- Origin:
- Pubic head - Cranial and medial borders of the obturator foramen
- Pelvic head - Pelvic symphysis and pelvic aspect of the body of the ilium
- Insertion: Trochanteric fossa together with the gemellus muscle, having passed over the lesser sciatic notch
- Action: Rotates the femur laterally, aids hip extension
External Obturator
- Innervation: Obturator n.
- Origin: Ventral surface of pelvis, close to the obturator foramen
- Insertion: Trochanteric fossa
- Action: Supinates the femur and adducts the limb
Gemellus
- In the horse, these two small muscle bundles are fused and unite partly with the internal obturator muscle
- Innervation: Sciatic n.
- Origin: Ischium
- Insertion: Trochanteric fossa
- Action: Aids lateral rotation of the limb
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