trapezius


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Related to trapezius: latissimus dorsi

tra·pe·zi·us (mus·cle)

[TA]
extrinsic (thoracoappendicular) muscle of shoulder; origin, medial third of superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous processes of seventh cervical and the thoracic vertebrae and corresponding supraspinous ligaments; insertion, lateral third of posterior surface of clavicle, anterior side of acromion, and upper and medial border of the spine of the scapula; action, when scapulae are fixed, portions of muscle can act independently: cervical portion elevates scapula, thoracic portion contributes to depression of scapula; upper and lowermost portions act simultaneously to rotate glenoid fossa superiorly; when the entire muscle and especially middle part contracts, the scapulae retract; draws head to one side or backward; nerve supply, motor by accessory, sensory by cervical plexus.
Synonym(s): musculus trapezius [TA], cowl muscle

trapezius

(trə-pē′zē-əs)
n. pl. trapezi·uses
Either of two large flat triangular muscles running from the base of the occiput to the middle of the back that support and make it possible to raise the head and shoulders.

trapezius

[trəpē′zē·əs]
Etymology: Gk, trapezion, small table
a large, flat, triangular superficial muscle of the shoulder and upper back. It arises from the occipital bone, the ligamentum nuchae, and the spinous processes of the seventh cervical and all the thoracic vertebrae. It acts to rotate the scapula upward; adduct, raise, or lower the shoulder; and retract the shoulder.
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Trapezius

tra·pe·zi·us mu·scle

(tră-pē'zē-ŭs mŭs'ĕl)
Origin, medial third of superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous processes of seventh cervical and the thoracic vertebrae and corresponding supraspinous ligaments; insertion, lateral third of posterior surface of clavicle, anterior side of acromion, and upper and medial border of the spine of the scapula; action, when scapulae are fixed, portions of muscle can act independently: cervical portion elevates scapula, thoracic portion contributes to depression of scapula; upper and lowermost portions act simultaneously to rotate glenoid fossa superiorly; when the entire muscle and especially its middle part contracts, the scapulae retract; draws head to one side or backward; nerve supply, motor by accessory, sensory by cervical plexus.
Synonym(s): musculus trapezius [TA] , trapezius.
Figure 1: Efferent nerve pathways from the brainstem and spinal cord. Shown on the right: somatic, to skeletal muscles. Shown on the left: autonomic. B brain stem, C cervical, T thoracic, L lumbar, S sacral segments of the spinal cord. (Red shaded regions are those with no autonomic outflow.)

trapezius

large, triangular, superficial muscle on each side of the upper back, its origin extending in the midline from the base of the skull down to the spine of the lowest thoracic vertebra. From there its fibres converge towards the shoulder, and partly over it, round the side of the lower neck, to be inserted in a continuous line into the outer end of the clavicle and the spine of the scapula. The tone of the two muscles keeps the shoulders braced and they act with the scapular spine as a lever when lifting the arms at the shoulder. Figure 1.
References in periodicals archive ?
Muscles worked -Deltoids (Shoulders), Trapezius (Shoulders / Back), Triceps (Under Arm) and Biceps (Upper Arm), Upper Pectorals (Chest) Dead Lift - Starting with the bar on the floor stand as close to the bar as you can (this way you won't waste any energy pulling the bar forward).
These postures, combined with recurring movements, lead to fatigue of the trapezius muscles.
Type IV: This injury involves a complete rupture of the AC and CC ligaments with posterior displacement of the distal clavicle into the trapezius fascia.
Other options include sternocleidomastoid, pectoralis, trapezius, latissimus, and levator scapulae.
COVENTRY The Herbert, Jordan Well, city centre: Trapezius - sculpture, installation and architectural projection by Lisa Gunn and Flora Parrott, until June 29.
2,3) This pattern of muscle tension is found mainly in the upper fibers of the trapezius muscle, and for this reason, it is an area much investigated in the literature.
Tortikolisde ipsilateral splenius kapitis ve kontralateral sternokleidomastoid kaslari, laterokolis de ipsilateral sternokle-idomastoid, splenius kapitis, skalen kaslar, levator skapula, semispinalis kapitis, longissimus kapitis ve diger postvertebral kaslar, omuz elevasyonunda ipsilateral trapezius ve levator skapula kaslari, retrokolisde bilateral splenius kapitis, trapez kasinin ust bolumu, semispinalis kapitis, longissimus kapitis ve diger derin postvertebral kaslar, anterokoliste ise bilateral sternokleidomastoid kaslari, skalen kaslar ve submental kaslar en sik etkilenen kas gruplaridir.
Muscles used: Deltoids, triceps and upper trapezius 4.
Summary: TEHRAN (FNA)- Latest findings from an ongoing study showed that strength training exercises using dumbbells can reduce pain and improve function in the trapezius muscle, the large muscle which extends from the back of the head, down the neck and into the upper back.
Effects of electromyographic and mechanomyographic biofeedback on upper trapezius muscle activity during standardized computer work.