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An example of trapezius function is an overhead press. When activating together, the upper and lower fibers also assist the middle fibers (along with other muscles such as the rhomboids) with scapular retraction/adduction. The trapezius also assists in abduction of the shoulder above 90 degrees by rotating the glenoid upward.
Like most muscles, control of the trapezius muscle arises from the opposite side of the brain. [8] Contraction of the upper part of the trapezius muscle elevates the scapula. [13] The nerve fibres supplying sternocleidomastoid, however, are thought to change sides (Latin: decussate) twice. This means that the sternocleidomastoid is controlled ...
There are several options of treatment when iatrogenic (i.e., caused by the surgeon) spinal accessory nerve damage is noted during surgery. For example, during a functional neck dissection that injures the spinal accessory nerve, injury prompts the surgeon to cautiously preserve branches of C2, C3, and C4 spinal nerves that provide supplemental innervation to the trapezius muscle. [3]
“This exercise works on a few of the deltoid muscles in the front of the shoulders as well as the upper trapezius muscles,” explains Germano, which are important for upper body and extremity ...
Tender points: [1] While medical doctors use eleven of eighteen tender points as a diagnostic criteria for fibromyalgia, Sarno states that he uses six main tender points to diagnose TMS: two tender points in the upper trapezius muscles, two in the lumbar paraspinal muscles and two in the lateral upper buttocks. He states that these are found in ...
the trapezius squeeze - which involves gripping and twisting a portion of the trapezius muscle in the patient's shoulder [1] mandibular pressure - this is the manual stimulation of the mandibular nerve, located within the angle of the jaw
The muscle which can 'cancel' or to some degree reverse the action of the muscle. Muscle synergies are noted in parentheses when relevant. O (Occurrences) Number of times that the named muscle row occurs in a standard human body. Here it may also be denoted when a given muscles only occurs in a male or a female body.
Upon entering the trapezius muscle, the superficial branch divides again into an ascending and descending branch. The ascending branch distributes branches to trapezius, and to the neighboring muscles and lymph glands in the neck, and anastomoses with the superficial branch of the descending branch of the occipital artery.