Subclavius muscle
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| Subclavius muscle | ||
|---|---|---|
| Deep muscles of the chest and front of the arm, with the boundaries of the axilla. | ||
| Latin | musculus subclavius | |
| Gray's | subject #122 438 | |
| Origin: | Rib 1 | |
| Insertion: | Subclavian groove | |
| Blood: | thoracoacromial artery, clavicular branch | |
| Nerve: | nerve to subclavius | |
| Action: | Pulls clavicle down | |
| Dorlands/Elsevier | m_22/12550995 | |
The Subclavius is a small triangular muscle, placed between the clavicle and the first rib. It arises by a short, thick tendon from the first rib and its cartilage at their junction, in front of the costoclavicular ligament; the fleshy fibers proceed obliquely upward and lateralward, to be inserted into the groove on the under surface of the clavicle between the costoclavicular and conoid ligaments.
[edit] Variations
Insertion into coracoid process instead of clavicle or into both clavicle and coracoid process. Sternoscapular fasciculus to the upper border of scapula. Sternoclavicularis from manubrium to clavicle between Pectoralis major and coracoclavicular fascia.
[edit] External links
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
fr:Muscle sous-clavier
