splenius

The Splenius is the most superficial of all the deep muscles.

The splenius capitis is a broad, straplike muscle in the back of the neck.

The splenius capitis muscle is a prime mover for head extension.

The splenius capitis can also allow lateral flexion and rotation of the cervical spine.

The splenius capitis is deep to sternocleidomastoideus at the mastoid process, and to the trapezius for its lower portion.

It is bounded in front by the scalenus medius and behind by splenius cervicis.

The splenius muscles are:

Splenius cervicis muscle (partly)

The broad-surfaced occipital region at the back of the skull provides a large attachment area for the splenius capitis muscles of the neck.

Splenius: originates from the 3rd-5th thoracic vertebrae, the dorsal scapular ligament, and the nuchal ligament.

Torticollis is the horizontal turning (rotational collis) of the head, and uses the ipsilateral splenius, and contralateral sternocleidomastoid muscles.

To it is attached the Occipitalis muscle, the Splenius capitis muscle, the trapezius muscle, and the Sternocleidomastoid muscle.

One important role for this bone is as a point of attachment for several muscles - the splenius capitis, longissimus capitis, digastric posterior belly, and sternocleidomastoid.

Retrocollis is the extension of the neck (head tilts back) and uses the following muscles for movement: bilateral splenius, bilateral upper trapezius, bilateral deep posterior paravertebrals.

The recti laterales are concerned in the lateral movement, assisted by the trapezius, splenius capitis, semispinalis capitis, and the sternocleidomastoideus of the same side, all acting together.

The semispinalis capitis (complexus) is situated at the upper and back part of the neck, deep to the splenius, and medial to the longissimus cervicis and capitis.

The superficial portion runs beneath the Splenius, giving off branches which pierce that muscle to supply the Trapezius and anastomose with the ascending branch of the transverse cervical.

In humans, the erector spinae, the transversospinal muscles (including the multifidus, semispinalis and rotatores), the splenius and suboccipital muscles are the only epaxial muscles.

This process serves for the attachment of the Sternocleidomastoid, Splenius capitis, [(the posterior belly of the digastric muscle)], and Longissimus capitis.

This involves many more muscles: ipsilateral sternocleidomastoid, ipsilateral splenius, ipsilateral scalene complex, ipsilateral levator scapulae, and ipsilateral posterior paravertebrals.

The lateral branch (ramus lateralis; external branch) supplies filaments to the Splenius, Longus capitis, and Semispinalis capitis, and is often joined by the corresponding branch of the third cervical.

The specific stretching exercises that Dr. Kathy gave the boy were for the splenius capitis and longissimus cervicis and the deep sheaths of nerve and muscle surrounding the boy's T2 and T3 vertebrae, which were what he had just injured.

Shrugging the receiver between cheek and shoulder places an enormous strain on the sternocleido-mastoid muscles, the prominent bulges on each side of your neck, and the splenius capitis, the muscle that runs up to the base of your skull and stops you wearing your head at a jaunty angle.

It arises by tendons from the transverse processes of the upper four or five thoracic vertebræ, and the articular processes of the lower three or four cervical vertebrae, and is inserted into the posterior margin of the mastoid process, beneath the splenius capitis and sternocleidomastoideus.

Flexion is produced mainly by the action of the longi capitis and recti capitis anteriores; extension by the recti capitis posteriores major and minor, the obliquus capitis superior, the semispinalis capitis, splenius capitis, sternocleidomastoideus, and upper fibers of the trapezius.