Branch of the Trigeminal Nerve Second

The branch of the trigeminal nerve, called the second branch (nervus maxillaris), is one of three branches that form the trigeminal nerve. It is located in the facial region of the skull and innervates the upper jaw, palate and skin around the mouth.

The second branch of the trigeminal nerve arises from the trunk of the nerve in the skull and passes through the upper jaw, where it divides into two branches. One branch passes through the palate and the other branch continues through the skin around the mouth and lips.

The innervation of the upper jaw and palate is carried out using the second branch of the trigeminal nerve. This branch provides sensitivity to the teeth, gums, palate and skin around the mouth. It is also involved in the regulation of salivation and smell.

Cutaneous sensation provided by the second branch of the trigeminal nerve plays an important role in detecting temperature, pressure and pain sensations on the skin of the face and around the mouth. It is also responsible for regulating sweating on the face and nose.

In general, the second branch of the trigeminal nerve plays an important role in providing sensitivity and regulating the functions of the facial region. Damage to it can lead to loss of sensation and function in the upper jaw, palate and skin around the mouth, which can cause discomfort and problems in everyday life.

The second branch of the trigeminal (sensitive) nerve (I pair), pars maxillares n.facialis (nerve, cranial nerve VII), the seventh pair of cranial nerves of the face is a sensory (afferent) nerve that transmits impulses from the receptors of the skin of the forehead and zygomatic areas to the brain. Located inside the temporal fossa, in the sella turcica, where its base is adjacent to the internal oblique process of the sphenoid bone.

Also branches of the trigeminal nerve: - First - Third

*Function of the second branch of the trigeminal (sensory) nerve:*

Perceives tactile sensations from the skin of the parietal, frontal part, the front surface of the cheeks, and the upper lip. Unlike the first, it is responsible only for the sensation of touch and pressure, the second branch does not perceive pain and temperature impulses. Bilaterally innervates the large auricular muscle, facial tissues (zygomatic, masticatory, orbicularis oris muscles). Sensitive to pain in the triangle of the infraorbital foramen, which often occurs with periodontitis of the teeth of the upper jaw.