Witrynaorigin Upper Division: external occipital protuberance, medial 1/3 of superior nuchal line, ligamentum nuchae & spinous process of 7th cervical vert Middle Division of … WitrynaThe muscle descends diagonally from its origin to its insertion.: ... Downward rotation would be prevented by co-contraction of other muscles that elevate the spine, the upper fibers of the trapezius, …

The Trapezius EXPLAINED Origin, Insertion, Action, & More

WitrynaThe accessory nerve nucleus is in the anterior horn of the spinal cord around C1-C3, where lower motor neuron fibers mark its origin. The fibers from the accessory nerve nucleus travel upward to enter the … WitrynaRecent data from gene expression supports a branchial (non-somitic) origin for the trapezius muscle and sternocleidomastoid muscle and the spinal accessory nerve. The homeobox gene Nkx2.9 is expressed in spinal accessory motoneurons and deletion of this gene results in hyomorphism of the spinal accessory nerve (Pabst et al., 2003 ). red leather joggers women

5.21: Upper and Lower Trapezius Flaps in Head and Neck …

WitrynaThe trapezius is a large paired trapezoid-shaped surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine and laterally to the spine of the scapula.It moves the scapula and supports the arm.. The trapezius has three functional parts: an upper (descending) part which supports the … WitrynaIt 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 … WitrynaThe trapezius is a broad, flat, superficial muscle extending from the cervical to thoracic region on the posterior aspect of the neck and trunk. The human trapezius muscle has an origin that is more extensive than that of any other body muscle. [1] The muscle is … red leather jewelry