Muscles Of The Cervical Body Wall

Front 1

Sternothyroid
(Ventral)

Back 1

It arises from the posterior surface of the manubrium sterni, below the origin of the Sternohyoideus, and from the edge of the cartilage of the first rib, and sometimes that of the second rib, it is inserted into the oblique line on the lamina of the thyroid cartilage. Depresses the thyroid cartilage.

Front 2

Sternohyoid
(Ventral)

Back 2

The sternohyoid muscle is a thin, narrow muscle attaching the hyoid bone to the sternum, one of the paired strap muscles of the infrahyoid muscles serving to depress the hyoid bone. The muscle arises from the posterior border of the medial end of the clavicle, the posterior sternoclavicular ligament, and the upper and posterior part of the manubrium sterni. Passing upward and medially, it is inserted by short tendinous fibers into the lower border of the body of the hyoid bone.

Front 3

Thyrohyoid
(Ventral)

Back 3

It arises from the oblique line on the lamina of the thyroid cartilage, and is inserted into the lower border of the greater cornu of the hyoid bone. Depresses the unfixed hyoid bone, hyoid if fixed it elevates the thyroid cartilage.

Front 4

Omohyoid
(Ventral)

Back 4

At the front of the neck that consists of two bellies separated by an intermediate tendon.It arises from the upper border of the scapula, and it ends in the superior belly, which passes almost vertically upward, close to the lateral border of the sternohyoideus, to be inserted into the lower border of the body of the hyoid bone, lateral to the insertion of the sternohyoideus. Depresses the hyoid bone.

Front 5

Geniohyoid
(Ventral)

Back 5

It arises from the inferior mental spine, on the back of the symphysis menti, and runs backward and slightly downward, to be inserted into the anterior surface of the body of the hyoid bone; it lies in contact with its fellow of the opposite side. Elevated the unfixed hyoid bone, hyoid if fixed it elevates the thyroid cartilage.

Front 6

Levator Scapulae
(Lateral Outermost)

Back 6

It arises by tendinous slips from the transverse processes of the atlas and axis and from the posterior tubercles of the transverse processes of the third and fourth cervical vertebrae.

It is inserted into the vertebral border of the scapula, between the medial angle and the triangular smooth surface at the root of the spine. Elevation of the scapula, lateral flexion of the neck, and stabilizes the scapula.

Front 7

Posterior Scalene
(Lateral External)

Back 7

From tips of posterior tubercles of transverse processes C4, C5, and C6 to external surface of second rib posterior to the tubecle for the serratus anterior. Laterally flexes the lower cervical vertebrae and elevates the second rib.

Front 8

Middle Scalene
(Lateral Middle)

Back 8

Anterior surface of the axis' transverse process and anterior surface of the posterior tubercles of the transverse process of C3, C4, C5, C6 and C7 to the superoior surface of the first rib between the suclavian groove and the tubercle. Laterally flexes the cervical vertebrae, elevates the first rib, and active in all aspects of breathing.

Front 9

Anterior Scalene
(Lateral Internal)

Back 9

From anterior tubercles of the transverse process of C3, C4, C5, and C6 to scalene tubercle of the first rib. Flexes, lateral flexes, and rotates the cervical vertebrae, also elevates the first rib.

Front 10

Longus Colli
(Subvertebral)

Back 10

Branches from C3 to C4 ventral rami and from C5 via dorsal scapular nerve to the anterior surface of the cervical vertebral bodies. Flexes the neck and rotates it to the opposite side.

Front 11

Longus Capitis
(Subvertebral)

Back 11

From the inferior surface of the basioccipital bone to the anterior tubercles of the transverse processes of C3, C4, C5, and C6. Flexes the head.