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The muscles of the neck are muscles that cover the area of the neck. These muscles are mainly responsible for the movement of the head in all directions. They consist of 3 main groups of muscles: anterior, lateral and posteriorgroups, based on their position in the neck.
The muscles of the neck are present in four main groups. The suboccipital muscles act to rotate the head and extend the neck. Rectus capitis posterior major and Rectus capitis posterior minor attach the inferior nuchal line of the occiput to the C2 and C1 vertebrae respectively.
The neck muscles are innervated by various cervical nerves and their branches and cranial nerves. Efferent nerves carry impulses from the spinal cord that cause muscles to contract, controlling cervical movements.
There are three types of neck muscles: anterior (front), posterior (back) and lateral (side) muscles. Anterior neck muscles include: Platysma: Thin sheet of muscle that covers part of your shoulder and upper chest, extending up the jaw.
Neck Muscles. This lateral-view illustration shows the trapezius, sternocleidomastoideus, sternohyoideus, omohyoideus belly, scalenus anterior and medius, levator scapulae, splenius, mylohyoideus, thyrohyoideus, digastricus, and stylohyoideus
Your neck muscles allow you to turn your head from side to side, forwards, and backwards. Learn which muscle groups get tight and restricted.
Neck muscles. The muscles of the neck are a hot topic within anatomy circles. They are usually described within the triangles; so there are the muscles of the anterior triangle, and the muscles of the posterior triangle.
The neck muscles, including the sternocleidomastoid and the trapezius, are responsible for the gross motor movement in the muscular system of the head and neck. They move the head in every direction, pulling the skull and jaw towards the shoulders, spine, and scapula.
The phrenic nerve is crucial in its role innervating the diaphragm while other branches of the plexus provide sensation and supply the muscles of the neck. Some of these muscles are involved in positioning the head while others are responsible for manipulating the pharynx via the hyoid bone.
The muscles of the neck can be classified in two ways. The first classification is based on the location, including the depth of the muscles. In contrast, the second way is to group these muscles according to their position in the neck. Muscles in one group share similar functions.