Infraspinatus muscle
Musculus infraspinatus
Rotates the humerus outward.
About the infraspinatus muscle of the cat
Infraspinatus muscle is a muscle of the front leg (thoracic limb), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Musculus infraspinatus. You can turn it above, see it in place in the front leg of the cat, and open it inside the whole animal in Vetomica.
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
- of M. biceps; d , M. acromiodeltoideus; e , M. teres minor; f , M. levator scapulae ventralis; g , M. spinodeltoideus; h , M. acromiotrapezius; i , M. rhomboideus; j , M. teres major; k - l …
- Insertion
- on the great tuberosity of the humerus. Fig. 76.—Lateral Surface of the Scapula, with the Areas of Attachment of Muscles. a , M. infraspinatus; b , M. supraspinatus; c.
- Action
- Rotates the humerus outward.
- Nerve
- Suprascapular nerve.
Written for Vetomica in its own words from the standard reference anatomy of the cat; the books it was checked against are listed below.
Terminology
- English
- Infraspinatus muscle
- Latin (NAV)
- Musculus infraspinatus
- Status
- A valid term in the Nomina Anatomica Veterinaria
The infraspinatus muscle in other animals
The same structure in the other animals in the Library, to compare.
Questions about the infraspinatus muscle
- What is the Latin name of the infraspinatus muscle?
- In the Nomina Anatomica Veterinaria, the infraspinatus muscle is called Musculus infraspinatus.
- Where is the infraspinatus muscle of the cat?
- Infraspinatus muscle is a muscle of the front leg (thoracic limb), one on each side of the body.
- Where does the infraspinatus muscle originate and insert?
- Origin: of M. biceps; d , M. acromiodeltoideus; e , M. teres minor; f , M. levator scapulae ventralis; g , M. spinodeltoideus; h , M. acromiotrapezius; i , M. rhomboideus; j , M. teres major; k - l … Insertion: on the great tuberosity of the humerus. Fig. 76.—Lateral Surface of the Scapula, with the Areas of Attachment of Muscles. a , M. infraspinatus; b , M. supraspinatus; c.
- What nerve supplies the infraspinatus muscle?
- Suprascapular nerve.
- What does the infraspinatus muscle do?
- Rotates the humerus outward.
See the infraspinatus muscle inside the whole cat.
Vetomica opens on this structure with every layer of the cat around it: peel back the skin and the muscles, cut a section through it, X-ray it, and practise naming it until you stop getting it wrong.
Free for 7 days, no card. After that the skeletons stay free.
