serratus anterior muscle


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Related to serratus anterior muscle: rhomboid muscle

anterior serratus

A thoracic muscle.
 
Action
Rotates scapula, pulling it forward; raises ribs.
 
Nerve
Long thoracic.
 
Origin
Centrolateral aspect of the 1st to the 8th ribs.
 
Insertion
Inferior and superior angles and medial margin of scapula.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

ser·ra·tus an·te·ri·or mus·cle

(sĕ-rā'tŭs an-tēr'ē-ŏr mŭs'ĕl)
Origin, from center of lateral aspect of first eight to nine ribs; insertion, superior and inferior angles and intervening medial margin of scapula; action, rotates scapula and pulls it forward, elevates ribs; nerve supply, long thoracic from brachial plexus.
Synonym(s): musculus serratus anterior [TA] .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

serratus anterior muscle

Chest muscle. Origin: outer surface of ribs 1-8. Insertion: anterior side of vertebral edge of scapula. Nerve: long thoracic (C5-C7). Action: pulls scapula forward (anterior) and laterally (abduction), rotates scapula upward.
See also: muscle
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Percentage of times that the dominant upper trapezius, lower trapezius, infraspinatus and serratus anterior muscles fired in a specific order during abduction in the scapular plane.
Our case describes a muscle that is inserted anteriorly, as the cases described by the aforementioned authors, on the first costal cartilage, but we found a difference concerning the posterior insertion, since it does not present any bone insertion, and, on the contrary, it ends on the serratus anterior muscle's fascia, close to the superior margin of the scapula.
Many authors described that the scapular OC with a large bursa penetrated the subscapularis and serratus anterior muscles and that the bursae were formed along the chest wall; although Chiarelli et al.
A vertical skin incision is made parallel to the anterior border of the latissimus dorsi muscle, and the serratus anterior muscle is identified (figure 2, B).
The serratus anterior muscle, which had been conserved during the previous surgery, was also detached to enable the inferior angle of the scapula to be raised sufficiently, after which the inferior angle of the scapula was locked inside the thorax and marked with an electric scalpel.
In contrast, the serratus anterior muscle on the most lateral implant pocket's baseline part (red line in "c" of [Figure 5]) could be elevated.
SUMMARY: While dissecting the body of a 59 years old male cadaver we observed "abnormal" branching pattern of the axillary artery and unusual vascular pedicles of the serratus anterior muscle. The serratus anterior branch originated directly first part of the axillary artery as the first branch.
(1994) Anomalous blood supply to the serratus anterior muscle flap.
Distally, the muscle inserted in various points of the scapulae, as well as the fasciae of the serratus anterior muscle. Just before its insertion, we also observed the splitting of the muscle into 2 flaps.
Trapezius weakness is evidenced by lateral winging, which is differentiated from the medial winging seen in weakness of the serratus anterior muscle.
Muscles measured included the upper and lower trapezius; anterior, middle and posterior deltoids; supraspinatus; infraspinatus; and serratus anterior muscles. Each participant performed 10 repetitions of shoulder abduction with their dominant arm.
However, insertion sites may vary and include the medial clavicle as well as the sternocleidomastoid and serratus anterior muscles. (5,6) The exact insertion site may be difficult or impossible to adequately determine.