| Medical Dictionary: teres minor muscle |
A muscle with origin from the lateral border of the scapula, with insertion into the great tuberosity of the humerus, with nerve supply from the axillary nerve from the fifth and the sixth cervical nerves, and whose action adducts the arm and rotates it laterally.
| 5min Related Video: Teres minor muscle |
| WordNet: teres minor muscle |
The noun has one meaning:
Meaning #1:
teres muscle that adducts the arm and rotates it laterally
Synonyms: teres minor, musculus teres minor
| Wikipedia: Teres minor muscle |
| Teres minor muscle | |
|---|---|
 |
|
| Suprascapular and axillary nerves of right side, seen from behind. (Teres minor is visible at center.) | |
 |
|
| Muscles on the dorsum of the scapula, and the Triceps brachii muscle: #3 is Latissimus dorsi muscle #5 is Teres major muscle #6 is Teres minor muscle #7 is Supraspinatus muscle #8 is Infraspinatus muscle #13 is long head of Triceps brachii muscle |
|
| Latin | musculus teres minor |
| Gray's | subject #123 441 |
| Origin | lateral border of the scapula |
| Insertion | inferior facet of greater tubercle of the humerus |
| Artery | posterior circumflex humeral artery and the circumflex scapular artery |
| Nerve | axillary nerve |
| Actions | laterally rotates and adducts the arm |
The Teres minor is a narrow, elongated muscle of the rotator cuff.
Contents |
It arises from the dorsal surface of the axillary border of the scapula for the upper two-thirds of its extent, and from two aponeurotic laminæ, one of which separates it from the Infraspinatus, the other from the Teres major.
Its fibers run obliquely upward and lateralward; the upper ones end in a tendon which is inserted into the lowest of the three impressions on the greater tubercle of the humerus; the lowest fibers are inserted directly into the humerus immediately below this impression.
The tendon of this muscle passes across, and is united with, the posterior part of the capsule of the shoulder-joint.
The muscle is innervated by the axillary nerve. Damage to the fibers innervating the teres minor is clinically significant.
The Infraspinatus and Teres minor laterally rotate the head of the humerus; they also help hold the humeral head in the glenoid cavity of the scapula.
Sometimes a group of muscle fibres from teres minor may be fused with Infraspinatus.
 Diagram of the human shoulder joint |
 Left scapula. Dorsal surface. |
 Left humerus. Posterior view. |
 The scapular and circumflex arteries. |
 The suprascapular, axillary, and radial nerves. |
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
|
|||||||||||||||||||||||||||||||||||||||||||||||
 |
This muscle article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
 | Terets |
| Teres (disambiguation) |
| Axillary space |
 | What is the synergist to the teres major muscle? Read answer... |
| What is the antagonist of the teres major muscle? Read answer... |
| Is the teres major muscle named for its location? Read answer... |
Copyrights:
 |
 | Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
 |
| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
 |
| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Teres minor muscle". Read more |
