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The semispinalis capitis (complexus) is situated at the upper and back part of the neck, deep to the splenius muscles, and medial to the longissimus cervicis and longissimus capitis. It arises by a series of tendons from the tips of the transverse processes of the upper six or seven thoracic and the seventh cervical vertebrae , and from the ...
The three semispinalis muscles, span 4-6 vertebral segments: . semispinalis thoracis; semispinalis cervicis; semispinalis capitis; The multifidus muscle, and spans 2-4 vertebral segments
Spinalis cervicis, or spinalis colli, is an inconstant muscle, which arises from the lower part of the nuchal ligament, the spinous process of the seventh cervical, and sometimes from the spinous processes of the first and second thoracic vertebrae, and is inserted into the spinous process of the axis, and occasionally into the spinous processes of the two cervical vertebrae below it.
semispinalis thoracis: Torso, Back, right/left transverse processes of sixth to tenth thoracic vertebrae: spinous processes of upper four thoracic vertebrae and lower two cervical vertebrae: posterior branch of spinal nerve: extends/rotates vertebral column: 2 1 semispinalis colli (cervicis) Torso, Back, right/left
Sometimes the branch of the fifth fails to reach the skin. Those of the lower three nerves are small, and end in the Semispinalis cervicis and capitis, Multifidus, and Interspinales. The lateral branches of the lower five nerves supply the Iliocostalis cervicis, Longissimus cervicis, and Longissimus capitis.
The accessory nerve (CN XI) is particularly vulnerable to damage during lymph node biopsy. Damage results in an inability to shrug the shoulders or raise the arm above the head, particularly due to compromised trapezius muscle innervation.
The splenius cervicis (/ ˈ s p l iː n i ə s s ər ˈ v aɪ s ɪ s /) (also known as the splenius colli, /-ˈ k ɒ l aɪ /) is a muscle in the back of the neck.It arises by a narrow tendinous band from the spinous processes of the third to the sixth thoracic vertebrae; it is inserted, by tendinous fasciculi, into the posterior tubercles of the transverse processes of the upper two or three ...
Spinotransversales – composed of splenius capitis and splenius cervicis. Erector spinae – composed of iliocostalis, longissismus and spinalis; Transversospinales – composed of semispinalis, multifidus and rotatores; Segmental muscles – composed of levatores costarum, interspinales and intertransversarii