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The rhomboid major is a skeletal muscle of the back that connects the scapula with the vertebrae of the spinal column. [1] It originates from the spinous processes of the thoracic vertebrae T2–T5 and supraspinous ligament; it inserts onto the lower portion of the medial border of the scapula. [2] It acts together with the rhomboid minor to ...
The rhomboid muscles ( / ˈrɒmbɔɪd / ), often simply called the rhomboids, are rhombus -shaped muscles associated with the scapula. There are two rhomboid muscles on each side of the upper back: [1] [2] [3] Rhomboid major muscle. Rhomboid minor muscle. The large rhombus-shaped muscle, located under the trapezius muscle in the upper part of ...
The dorsal scapular nerve is a branch of the brachial plexus, usually derived from the ventral ramus of cervical nerve C5. It provides motor innervation to the rhomboid major muscle, rhomboid minor muscle, and levator scapulae muscle . Dorsal scapular nerve syndrome can cause a winged scapula, with pain and limited motion.
Winged scapula. The left side of the thorax. (Winging not illustrated but serratus anterior is labeled at left, and trapezius is labeled at upper right.) A winged scapula ( scapula alata) is a skeletal medical condition in which the shoulder blade protrudes from a person's back in an abnormal position. In rare conditions it has the potential to ...
The levator scapulae is a slender [1] : 910 skeletal muscle situated at the back and side of the neck. It originates from the transverse processes of the four uppermost cervical vertebrae; it inserts onto the upper portion of the medial border of the scapula. It is innervated by the cervical nerves C3-C4, and frequently also by the dorsal ...
The erector spinae is not just one muscle, but a group of muscles and tendons which run more or less the length of the spine on the left and the right, from the sacrum, or sacral region, and hips to the base of the skull. They are also known as the sacrospinalis group of muscles. These muscles lie on either side of the spinous processes of the ...
Serratus anterior muscle. The left side of the thorax. Protracts and stabilizes scapula, assists in upward rotation. The serratus anterior is a muscle of the chest. It originates at the side of the chest from the upper 8 or 9 ribs; it inserts along the entire length of the anterior aspect of the medial border of the scapula.
Shoulder impingement syndrome is a syndrome involving tendonitis ( inflammation of tendons) of the rotator cuff muscles as they pass through the subacromial space, the passage beneath the acromion. It is particularly associated with tendonitis of the supraspinatus muscle. [1] This can result in pain, weakness, and loss of movement at the shoulder.