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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 ...
Subacromial bursitis. Subacromial bursitis is a condition caused by inflammation of the bursa that separates the superior surface of the supraspinatus tendon (one of the four tendons of the rotator cuff) from the overlying coraco-acromial ligament, acromion, and coracoid (the acromial arch) and from the deep surface of the deltoid muscle. [1]
Muscles connecting the upper extremity to the vertebral column. (Rhomboid minor in red) In human anatomy, the rhomboid minor is a small skeletal muscle of the back that connects the scapula to the vertebrae of the spinal column. [citation needed] It arises from the nuchal ligament, and the 7th cervical and 1st thoracic vertebrae and intervening ...
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 ...
MeSH. D004576. [ edit on Wikidata] Electromyography ( EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles. [1] [2] EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram. An electromyograph detects the electric potential generated by muscle ...
The subscapularis is covered by a dense fascia which attaches to the scapula at the margins of the subscapularis' attachment (origin) on the scapula. [1] The muscle's fibers pass laterally from its origin before coalescing into a tendon of insertion. [citation needed] The tendon intermingles with the glenohumeral (shoulder) joint capsule.
A commonly known and very basic test is the arm-pull-down test, or "Delta test," where the patient resists as the practitioner exerts a downward force on an extended arm. [16] Proper positioning is paramount to ensure that the muscle in question is isolated or positioned as the prime mover, minimizing interference from adjacent muscle groups.