Hypoglossal Nerve Canal

The hypoglossal nerve canal is an anatomical formation located in the neck and head. It is one of the main channels providing nutrition and innervation to the hyoid bone and other structures of the head and neck.

The hypoglossal nerve canal begins at the base of the skull, where it connects to the external auditory canal and the temporal bone. The canal then passes through the pyramid of the temporal bone, where it connects with the facial nerve and continues down through the neck and chest.

The importance of the hypoglossal nerve canal is that it provides nutrition and innervation to important structures such as the hyoid bone, glossopharyngeal nerve, lingual muscles and other structures.

Any disturbances in the hypoglossal nerve canal can lead to various problems, such as impaired nutrition and innervation of the hyoid bone, speech impairment, problems with swallowing, etc. Therefore, it is important to know the anatomy and physiology of the hypoglossal nerve canal and understand its role in the body.

Canals of the hypoglossal and glossopharyngeal nerves.

The canals of the hypoglossal nerves are mixed in their structure. Formed by bone, muscles, and the sheath of these nerves. Its anterior sections are limited in position by the heads of the lower jaw, where it ends at the bony junction and the hyoid cheek muscle. The posterior part of the canal passes through the occipito-cervical notch into the cervical canal. In the temporal region of the neck and further through the anterior region of the neck, the canal lies between the muscle layers of the sternothyroid-vertebral and the scales

The hypoglossal nerve canal is a structure of the inner ear of the brain that is responsible for controlling the sensitivity of the tongue and pharynx, and also affects the sensitivity of the facial nerve in the lower jaw. Below is a detailed description of this structure and its role in the human body.

The hypoglossal nerve canals emerge from the main pavement canal, located between the central and internal canals in the brain. This structure provides communication between the superior edge of the pons and the inferior cerebellum. The end of the canal nerves is located in the lower part of the tongue, where they join the superficial and deep layers of the fibrous layer of the suprapontine. After this, the endings go down the front and side surfaces of the body of the tongue towards its tip. They pass under the mucous layer and superficial fascia of the tongue to reach the surfaces surrounding the mandible.

The function of the hypoglossal nerve canal involves transmitting sensory information from the tongue, pharynx, and part of the parotid region, which includes the central and external ears. In addition, these sensory nerves provide sensory and motor innervation to muscles and fascia in the underlying facial muscles, tongue, mandible, retropharyngeal sphincters, and floor of the mouth. There is no connection between the two pieces of the rise of the hypaglitic wire, since each nerve has its own terminal process.

The physiological importance of the hypoglossal nerve canal is that it provides communication between the central nervous system and many organs located around the lower face and posterior approach to the jaw. If we experience an injury to this canal that results in fire, loss of control of the tongue or mandibular neck muscles, we may experience problems with swallowing, speaking, breathing, and eating. This can lead to disability and psychosocial dysfunction.

The canal of the hypoglossal (facial) nerve is a well-defined depression along the midline, limited in front by the posterior belly of the digastric muscle, on the sides by the styloid process of the temporal bone, and behind by the uvula of the hyoid bone. The base of the canal lies above the base of the tongue. Conditional line connecting