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The splenius capitis (/ ˈ s p l iː n i ə s ˈ k æ p ɪ t ɪ s /) (from Greek splēníon 'bandage' and Latin caput 'head' [1] [2]) is a broad, straplike muscle in the back of the neck. It pulls on the base of the skull from the vertebrae in the neck and upper thorax. It is involved in movements such as shaking the head.
The splenius muscles are: Splenius capitis muscle; Splenius cervicis muscle; Their origins are in the upper thoracic and lower cervical spinous processes. Their ...
The sternocleidomastoid muscle originates from two locations: the manubrium of the sternum and the clavicle. [4] It travels obliquely across the side of the neck and inserts at the mastoid process of the temporal bone of the skull by a thin aponeurosis. [4] [5] The sternocleidomastoid is thick and narrow at its center, and broader and thinner ...
The mastoid process serves for the attachment of the sternocleidomastoid, the posterior belly of the digastric muscle, splenius capitis, and longissimus capitis. On the medial side of the process is a deep groove, the mastoid notch, for the attachment of the digastric muscle ; medial to this is a shallow furrow, the occipital groove , which ...
Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone. Anteriorly: Posterior border of the sternocleidomastoideus. Posteriorly: Anterior border of the trapezius. Inferiorly: Middle one third of the clavicle. Roof: Investing layer of the deep cervical fascia. Floor: (From superior to ...
Lower cervical flexors: sternocleidomastoid, anterior and middle scalene muscles. Upper cervical (capital) extensors: semispinalis capitis, longissimus capitis, splenius capitis, suboccipital muscles; Strengthening muscles that cause neck retraction: [37] [38] Lower cervical extensors: splenius cervicis, semispinalis cervicis, longissimus cervicis
Sternocleidomastoid: Accessory nerve: nodding and turning move head: Semispinalis: dorsal rami of cervical nerves: extends head, supports turning move head: Splenius capitis: dorsal rami of middle and lower cervical nerves: extend head, supports turning move head: Longissimus capitis: dorsal rami of middle and lower cervical nerves: extends ...
One of the muscles within the floor of the posterior triangle of the neck, the superior part of levator scapulae is covered by sternocleidomastoid and its inferior part by the trapezius. [3] It is bounded in front by the scalenus medius and behind by splenius cervicis.