The Neck is the part of the body on which the head is mounted. It extends from the level of the chin to the pit of the neck in front and from the base of the skull to the level of the prominence of the seventh neck (cervical) vertebra in the back.
The prominence can easily be felt when the head is bent slightly forward. The pit of the neck in front is the notch felt and seen at the top of the breastbone.
Very superficially in the front part of the neck are such vital parts as the wind pipe topped by the larynx and the gullet right behind it, and the blood vessels going to and from the head