Supraspinatus

Supraspinatus

The Supraspinatus (/ˌsuːprəsɪˈneɪtəs/; from Latin, supra meaning "above" and spinatus from spina meaning "spine") is a relatively small muscle of the upper back that is part of the rotator cuff.

Anatomy

The Supraspinatus muscle originates from the supraspinous fossa, a concave depression in the posterior aspect of the scapula, and inserts into the superior facet of the greater tubercle of the humerus. It is innervated by the suprascapular nerve.

Function

The primary function of the Supraspinatus is to assist in abduction of the arm at the shoulder joint. It also helps to stabilize the shoulder joint by keeping the head of the humerus firmly pressed medially against the glenoid fossa of the scapula.

Clinical significance

Injuries to the Supraspinatus muscle or tendon are common, especially in athletes and older adults. These injuries can result in pain, weakness, and loss of mobility in the shoulder. The most common injury is a rotator cuff tear, which often involves a tear in the Supraspinatus tendon.

Related terms

• Rotator cuff
• Supraspinous fossa
• Greater tubercle
• Humerus
• Scapula
• Suprascapular nerve
• Abduction
• Shoulder joint
• Glenoid fossa
• Rotator cuff tear

External links

• Medical encyclopedia article on Supraspinatus
• Wikipedia's article - Supraspinatus

This WikiMD article is a stub. You can help make it a full article.

---

Languages: - East Asian 中文, 日本, 한국어, South Asian हिन्दी, Urdu, বাংলা, తెలుగు, தமிழ், ಕನ್ನಡ,
Southeast Asian Indonesian, Vietnamese, Thai, မြန်မာဘာသာ, European español, Deutsch, français, русский, português do Brasil, Italian, polski