Rhomboid minor muscle: Difference between revisions
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Blood = [[dorsal scapular artery]] | |
Blood = [[dorsal scapular artery]] | |
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Nerve = [[dorsal scapular nerve]] (C4 and C5) | |
Nerve = [[dorsal scapular nerve]] (C4 and C5) | |
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Action = Acting with the rhomboid major, both muscles retracts the [[scapula]] and rotates it to depress the [[glenoid cavity]]. It also fixes the scapula to the thoracic wall. | |
Action = Acting with the [[rhomboid major]], both muscles retracts the [[scapula]] and rotates it to depress the [[glenoid cavity]]. It also fixes the scapula to the [[thoracic wall]]. | |
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Antagonist = [[Serratus anterior muscle]] | |
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Revision as of 14:09, 15 January 2007
| Rhomboid minor | |
|---|---|
 Muscles connecting the upper extremity to the vertebral column. (Rhomboideus minor visible at upper center right, near shoulder.) | |
| Details | |
| Origin | nuchal ligaments and spinous processes of C7 to T1 vertebrae |
| Insertion | medial border of the scapula, superior to the insertion of rhomboid major muscle |
| Artery | dorsal scapular artery |
| Nerve | dorsal scapular nerve (C4 and C5) |
| Actions | Acting with the rhomboid major, both muscles retracts the scapula and rotates it to depress the glenoid cavity. It also fixes the scapula to the thoracic wall. |
| Antagonist | Serratus anterior muscle |
| Identifiers | |
| Latin | musculus rhomboideus minor |
| TA98 | A04.3.01.008 |
| TA2 | 2233 |
| FMA | 13380 |
| Anatomical terms of muscle | |
The Rhomboideus minor arises from the lower part of the ligamentum nuchæ and from the spinous processes of the seventh cervical and first thoracic vertebræ.
It is inserted into the base of the triangular smooth surface at the root of the spine of the scapula, and is usually separated from the Rhomboideus major by a slight interval, but the adjacent margins of the two muscles are occasionally united.
Additional images
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Left scapula. Dorsal surface. -
The scapular and circumflex arteries.
External links
- Template:MuscleLoyola
- . GPnotebook https://www.gpnotebook.co.uk/simplepage.cfm?ID=194641998.
{{cite web}}: Missing or empty|title=(help) - Anatomy photo:01:st-0211 at the SUNY Downstate Medical Center
- Template:EMedicineDictionary
This article incorporates text in the public domain from page 434 of the 20th edition of Gray's Anatomy (1918)