latissimus dorsi


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Related to latissimus dorsi: latissimus dorsi flap

latissimus dorsi

(lə-tĭs′ə-məs dôr′sī)
n. pl. latissimi dorsi (-mī′)
Either of two broad, flat, triangular muscles with origin from the spinous processes of the lower thoracic and lumbar vertebrae, the sacrum, and the iliac crest, that insert into the humerus and whose action adducts, medially rotates, and extends the arm.

latissimus dorsi

[latis′iməs dôr′sī]
Etymology: L, widest, dorsum, the back
one of a pair of large triangular muscles on the thoracic and lumbar areas of the back. The base of the triangle inserts through lumbar aponeuroses to the spines of lumbar and sacral vertebrae and in the supraspinous ligaments, posterior iliac crest, and the lower four ribs. The fibers of the muscle twist as they pass the scapula and converge at the base of the intertubercular groove of the humerus. The latissimus dorsi extends, adducts, and rotates the arm medially; draws the shoulder back and down; and, with the pectoralis major, draws the body up when climbing. It is innervated by the thoracodorsal nerve. Compare levator scapulae, rhomboideus major, rhomboideus minor, trapezius.
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Latissimus dorsi

latissimus dorsi

The broadest muscle of the back. It arises from the spines of the six lower thoracic vertebrae and from the FASCIA attached to the lumbar vertebrae and back of the pelvis and sweeps up and forward to be inserted by a short, broad tendon into the back of the top of the upper arm bone (humerus). It acts to pull the body upward in climbing and assists in heavy breathing.

latissimus

[L.] widest, a broad structure.

latissimus dorsi
the broad muscle of the back that serves to retract the forelimb.
References in periodicals archive ?
Su an 14 yasinda olan ikinci olgumuz da daha A[paragraph]nce latissimus dorsi kasinin teres minA[paragraph]r kasina kas transfer cerrahisi geAs.
Although the classical vascular pattern of the flap was altered, intra-operative evaluation of the latissimus dorsi muscle displayed a substantial anastomotic vascular loop with the vessels providing serratus anterior muscle, which allowed us to resume the procedure.
Then EMG electrodes were placed bilaterally on the rectus abdominus (RA: 3 cm lateral to midline of abdomen and 2 cm above umbilicus), external oblique (EO: 15 cm lateral to the umbilicus at a 45[degrees] angle above the anterior superior iliac spine at the level of the umbilicus), erector spinae (ES: 4 cm lateral to L3 spinous process), and latissimus dorsi (LD: most lateral portion of the muscle at the T9, 4 cm below the inferior angle of the scapula).
Reverse shoulder arthroplasty combined with a modified latissimus dorsi and teres major tendon transfer for shoulder pseudoparalysis associated with dropping arm.
Deep pectoral and latissimus dorsi muscles, which were present only in the 6th to 9th thoracic vertebrae, were found to have moderate to high heritability estimates of 0.
First, we concentrate on the PHCA passing under the fused tendons of the teres major (musculus teres major, TM) and the latissimus dorsi (musculus latissimus dorsi, LD).
PDMS was then used to suture the chamber to the latissimus dorsi muscle.
He says: "They used skin from my leg and latissimus dorsi muscles from my back to replace those that got ripped during the accident.
Various other trunk muscles, including the latissimus dorsi, quadratus lumborum, and the trapezius, also assist the erector spinae muscles in extending the trunk (Kendall et al.
To assess the EMG activity of selected muscles, seven surface electrodes (EMG Triode Electrode, Nickel-plated brass, interelectrode distance = 2 cm, Thought Technology, Montreal, Canada) were attached to the upper trapezius (UT), pectoralis major (PM), latissimus dorsi (LD), middle deltoid (MD), biceps brachii (BB) and triceps brachii (TB) muscles of the dominant side (Figure 2).
1] With regard to rugby players, in a study to define muscle-activation patterns in selected shoulder girdle muscles during a front-on tackle in asymptomatic subjects,'91 a consistently earlier activation of the serratus anterior muscle was observed prior to impact, compared with the pectoralis major, biceps brachii, latissimus dorsi and infraspinatus.
Myofascial trigger points and adhesions were detected in the right rhomboid, deltoid, infraspinatus, supraspinatus, teres minor, subscapularis, latissimus dorsi, upper trapezius, levator scapulae and cervical spine musculature.