latissimus dorsi muscle


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Related to latissimus dorsi muscle: Serratus anterior muscle

la·tis·si·mus dor·si mus·cle

(lă-tis'i-mŭs dōr'sī mŭs'ĕl)
Origin, spinous processes of the lower five or six thoracic and the lumbar vertebrae, median ridge of sacrum, and outer lip of iliac crest; insertion, with teres major into posterior lip of bicipital groove of humerus; action, adducts arm, rotates it medially, and extends it; nerve supply, thoracodorsal.
Synonym(s): musculus latissimus dorsi [TA] .

latissimus dorsi muscle

Back muscle. Origin: spinous processes of vertebrae T7-S3, thoracolumbar fascia, iliac crest. Insertion: bicipital groove of humerus. Nerve: thoracodorsal (C6-C8). Action: adducts, extends, and medially rotates arm.
See also: muscle
References in periodicals archive ?
In this study, in vivo bone formation was aided by cells incoming from the periosteum and the adjacent latissimus dorsi muscle providing the vascular supply [16] to the periosteum.
The edges of the layered latissimus dorsi muscle, fascia and skin incisions are sewn with single interrupted sutures.
Thoracotomy at the 10th intercostal space allowed creation of a large pedicle flap of latissimus dorsi muscle.
Immediate transposition of a latissimus dorsi muscle for correcting a postquadrantectomy breast deformity in Japanese patients.
The defects over the brachial plexus, remaining parts of the clavicle, and the vessels were covered with a pedicled latissimus dorsi muscle flap with split skin.
Bass at the annual meeting of the American Society of Plastic and Reconstructive Surgeons (Dallas, TX), 20 patients who underwent flap harvesting of either the latissimus dorsi muscle of the back, or the rectus abdominus of the abdomen, experienced faster recovery time, less post-operative discomfort and reduced scarring compared to the conventional surgical procedure.
The unique finding of musculocutaneous AAM arose mainly from latissimus dorsi muscle (B) and unique slip arising from AAM and seemed to merge with overlying axillary skin (Large Black Arrow in Figure 1 and 2).
This approach involves tunneling the latissimus dorsi muscle and thoracodorsal vascular pedicle through the axilla to cover the mastectomy defect (6).
Transfer of the latissimus dorsi muscle after failed repair of a massive tear of the rotator cuff.
The medial branch was the subscapular artery, which in turn gave three circumflex scapular arteries; one medial and two lateral branches to the scapular border, the artery then continued as thoraco-dorsal artery, with the thoracodorsal nerve and supplied the medial wall of axilla and latissimus dorsi muscle (Soubhagya 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 posterior layer of the thoracolumbar fascia is formed by the aponeurosis of the latissimus dorsi muscle.