Infraspinatus
Musculus infraspinatus
Abducts and rotates the arm, and acts as a lateral collateral ligament of the shoulder.
- System
- Muscle
- Region
- Trunk
- Sides
- Paired: left and right
Where it runs from and to
A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.
- Origin
- Infraspinous fossa of the scapula.
- Insertion
- Greater tubercle of the humerus.
- Action
- Abducts and rotates the arm, and acts as a lateral collateral ligament of the shoulder.
- Nerve
- Suprascapular nerve.
Written for Vetomica in its own words from the standard reference anatomy of the pig; the books it was checked against are listed below.
Terminology
- English
- Infraspinatus
- Latin (NAV)
- Musculus infraspinatus
- Status
- A valid term in the Nomina Anatomica Veterinaria
Read next
- Biceps brachiiSame region
- BrachialisSame region
- Cervical ventral serrate 1Same region
- Cervical ventral serrate 2Same region
- Cervical ventral serrate 3Same region
- Costal cartilage 1Same region
- Lateral digital extensor, thoracic limbSame region
- Lumbar vertebra 2Same region
- Lumbar vertebra 3Same region
- Lumbar vertebra 4Same region
- Lumbar vertebra 5Same region
- Radial carpal extensorSame region