Neck

Neck

The neck is the part of the body that separates the head from the torso. It contains various blood vessels and nerves that supply structures mainly in the head and neck. The neck is also involved in several important functions such as breathing, swallowing, and speaking.

Anatomy

The neck is made up of several structures including the vertebral column, nerves, muscles, and skin. The vertebral column in the neck is made up of seven bones called the cervical vertebrae. These bones protect the spinal cord and provide support for the head.

The neck also contains several muscles that are responsible for movement of the head and neck. These muscles include the sternocleidomastoid, trapezius, and the scalene muscles.

Function

The neck has several important functions. It supports the weight of the head and allows it to move in different directions. The neck also contains the larynx, which is involved in speech and swallowing. The thyroid gland, which is located in the neck, produces hormones that regulate metabolism.

Clinical significance

There are several medical conditions that can affect the neck. These include neck pain, whiplash, and thyroid disease. Neck pain can be caused by a variety of factors including poor posture, stress, and injury. Whiplash is a common injury that occurs when the neck is suddenly jerked back and forth. Thyroid disease can cause a variety of symptoms including fatigue, weight gain, and depression.

See also

• Head and neck anatomy
• Cervical vertebrae
• Thyroid

References

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