Ventral region of neck - Tracheal region

The ventral region of the neck, also called the tracheal region, corresponds to the lower and median part of the cervical area, situated between the medial surfaces of the sternocephalic and brachiocephalic muscles. It extends from the base of the skull (basihyoid region) to the thorax.

This region is characterized by the presence of the trachea, a cartilaginous structure essential to the respiratory system, as well as the esophagus (generally positioned to the left in carnivores), endocrine glands such as the thyroid and parathyroid glands, and the cervical plexus, including notably the common carotid arteries, the internal jugular vein (depending on the species), and the vagus nerve.