What does supraspinatus fossa mean?

Medical Definition of supraspinous fossa : a smooth concavity above the spine on the dorsal surface of the scapula that gives origin to the supraspinatus muscle.

What is the purpose of the infraspinous fossa?

The infraspinous fossa is functionally important because it serves as the origin of the infraspinatus muscle. The infraspinatus muscle is one of the four rotator cuff muscles. As the name implies, it is inferior to the spine of the scapula.

What is the function of the supraspinous fossa?

Supraspinatus muscle

Origin Supraspinous fossa of scapula
Insertion Greater tubercle of humerus
Action Shoulder joint: abduction of arm, stabilization of the humeral head in the glenoid cavity
Innervation Suprascapular nerve (C5, C6)
Blood supply Suprascapular artery

What is supraspinous fossa in anatomy?

Anatomical terms of bone The supraspinous fossa (supraspinatus fossa, supraspinatous fossa) of the posterior aspect of the scapula (the shoulder blade) is smaller than the infraspinous fossa, concave, smooth, and broader at its vertebral than at its humeral end. Its medial two-thirds give origin to the Supraspinatus.

What is the infraspinous fossa of scapula?

The infraspinous fossa includes the surface of the scapula bone to which the infraspinatus muscle (sometimes written “infraspinalis” – one of the posterior muscles of the torso) is attached. So, remember that: The infraspinous fossa is the part of the scapula (bone) to which the infraspinatus (muscle) is attached.

Which of the following muscles arises in the infraspinous fossa?

The two muscles below the spine are infraspinatus and teres minor. Between them, they arise from almost all of the infraspinous fossa, infraspinatus here, teres minor here.

What are the 3 fossa of the scapula?

The scapula has three processes: the acromion, the spine, and the coracoid process. Muscle attachments to these landmarks are covered in the “Muscles” section. The ventral surface of the scapula abuts the thoracic rib cage and has a large concavity called the subscapular fossa where the subscapularis attaches.

What is infraspinous fossa?

Medical Definition of infraspinous fossa : the part of the dorsal surface of the scapula below the spine of the scapula.

Can you live with a full thickness rotator cuff tear?

For patients with chronic full-thickness rotator cuff tears, quality of life scores can predict treatment outcomes, and most patients will recover well without surgical intervention. “We all know that cuff tears are common, and they affect people’s quality of life.

What is the supraspinatous fossa?

Supraspinatous fossa shown in red. The supraspinous fossa ( supraspinatus fossa, supraspinatous fossa) of the posterior aspect of the scapula (the shoulder blade) is smaller than the infraspinous fossa, concave, smooth, and broader at its vertebral than at its humeral end. Its medial two-thirds give origin to the Supraspinatus .

What is the origin of the infraspinatus fossa?

Origin. The infraspinatus fossa of scapula, with some fibres arising from the infraspinatous fascia which covers the muscle and separates it from Teres Major and Teres Minor.

What is the origin of the supraspinatus?

Origin and insertion Supraspinatus is the most superior of the four rotator cuff muscles. It is a small triangular-shaped muscle, located on the posterior aspect of the scapula. It originates from the medial aspect of the supraspinous fossa, a concave depression located above the spine of the scapula.

What causes hollows in the supraspinous and infraspinatus?

Hollowing in the supraspinous and the infraspinous area is frequently seen as chronic rotator cuff tear resulting in wasting. The wasting may be caused by the supraglenoid cyst compressing the suprascapular nerve and causes a loss of innervation to supraspinatus and infraspinatus muscles.