Neck Muscle Anatomy

The neck is the part of the human body that attaches the head to the rest of the body. Rotation lateral flexion flexion and hyperextension.

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Muscles of the neck.

Neck muscle anatomy. 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 motion of the muscles of the neck are divided into four categories. 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.

The superficial muscle of the neck the platysma muscle also assists with depression of the mandible against resistance1 the primary muscles of mastication chewing food are the temporalis medial pterygoid lateral pterygoid and masseter muscles. Human anatomy muscular system neck muscles. The neck also contains the thyroid and parathyroid glands the esophagus larynx and trachea and also a number of lymph glands.

The purpose of the neck muscles is either to allow for neck movement or to provide structural support for the head. Anatomy of the neck the neck contains a number of overlapping muscles blood vessels nerves and myriad structures all contained in a small space and liable to damage and distress. They move the head in every direction pulling the skull and jaw towards the shoulders spine and scapula.

The muscles in the neck are responsible for the movement of the head in the cervical region in all directions. The musculature of the neck is comprised of a number of different muscle groups. The muscles of the neck are present in four main groups.

They can be divided into anterior lateral and posterior groups based on their position in the neck. Rotation describes the action of moving the head from side to side lateral motion brings the ear to the shoulder flexion moves the chin to the chest as in looking down. It is made up of many muscles that are connected from the head to the torso of the body.

The suboccipital muscles act to rotate the head and extend the neck.

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