Triangle of the Hypoglossal Nerve

The triangle of the hypoglossal nerve (lat. trigonum nervi hypoglossi) is an anatomical area of ​​the neck located under the hyoid bone.

The boundaries of the triangle are:

1. above - the body of the hyoid bone;
2. below - the upper and middle leaves of the fascia of the neck;
3. on the side - the lateral edges of the hyoid muscles.

The hypoglossal nerve passes through the triangle - the XII pair of cranial nerves. It innervates the muscles of the tongue that are responsible for its mobility.

The triangle of the hypoglossal nerve is a vulnerable point in the neck. Damage to the nerve in this area leads to disruption of the motor innervation of the tongue.

What is the triangle of the hypoglossal nerves?

This term is used in anatomy and refers to the area where the three large hyoid muscles connect to the other muscles of the head and neck. It is located under the top of the tongue and under the tongue, just below the tip of the skull.

**The hypoglossal triangle consists of three large muscles:**

* Hyoid muscle. This is a large transverse muscle that attaches to the hyoid bone. It is responsible for lowering the upper teeth and helping to turn the tongue in