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semispinalis

   Also found in: Wikipedia 0.01 sec.
semispinalis [‚sem·i‚spī′nal·əs]
(anatomy)
One of the deep longitudinal muscles of the back, attached to the vertebrae.


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Some texts also include scalenus anterior in the floor of the triangle (Drake et al 2005, Grant and Basmajian 1965, Wood Jones 1953), while others note that a small portion of semispinalis capitis may be visible at the apex of the triangle (Grant and Basmajian 1965, Last 1978, Wood Jones 1953, Zuckerman 1961).
Dissection of the cervical spine has shown that the semispinalis cervicus and capitis muscles appear to be primarily responsible for neck extension.
Rotatories, multifidus, and semispinalis muscles control trunk rotation of the thoracic/lumbar spine (allows lower back to bend) (Kendall et al.
 
 
 
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