What nerve Innervates geniohyoid?

What nerve Innervates geniohyoid?

hypoglossal nerve
Innervation. Geniohyoid is supplied by the first cervical spinal nerve, through the hypoglossal nerve.

What does Mylo meaning anatomy?

Introduction. The mylohyoid is one of the muscles essential in performing the functions of swallowing and speaking. It is a flat and triangular muscle that originates from the mandible near the molars hence the prefix “mylo” (Greek for molars) and inserts on the hyoid bone.

What is the mylohyoid raphe?

The medial fibres of the two mylohyoid muscles unite in a midline raphe (where the two muscles intermesh). The mylohyoid muscle separates the sublingual space from the submandibular space, which communicate via a lateral gap between the mylohyoid and hyoglossus muscles at the posterior free margin of mylohyoid muscle.

What movement does the geniohyoid perform?

Together with the digastric, stylohyoid and mylohyoid muscles, it constitutes the floor of the oral cavity. Its main function is to coordinate the movements of the floor of the mouth and the hyoid bone while swallowing and voice production.

Why is it called geniohyoid?

The geniohyoid muscle is a narrow muscle situated superior to the medial border of the mylohyoid muscle. It is named for its passage from the chin (“genio-” is a standard prefix for “chin”) to the hyoid bone.

Where is the geniohyoid?

The geniohyoid muscle is one of the suprahyoid muscles of the neck that is innervated by the ventral ramus of C1. Geniohyoid draws the hyoid bone up and forward during mastication and assists the opening of the mandible.

What is sternothyroid?

The sternothyroid is a paired, flat strap of muscle that serves to fix the hyoid bone as well as depressing the larynx in phonation and in the terminal phase of swallowing.

What is mylohyoid groove?

The mylohyoid groove (Sulcus mylohyoideus) is a vasculonervous impression that runs under the mylohydoid line, the muscular insertion of the mylohyoid muscle. It runs rostrally from the mandibular foramen.

What is the medial pterygoid?

The medial pterygoid muscle, a major elevator of the jaw is a square-shaped masticatory muscle, located on the medial aspect of the lower jaw bilaterally. It is also known as internal pterygoid muscle. This muscle lies medial to the lateral pterygoid muscle.

Does the geniohyoid muscle elevate the mandible?

The geniohyoid moves the hyoid forward and supports the opening and lateral movement of the mandible. Even though the main function of the mylohyoid is to form the oral diaphragm and elevate the floor of the mouth, it can also assist in jaw opening and chewing movements.

Where is the geniohyoid muscle located?

The geniohyoid muscle is a narrow muscle situated superior to the medial border of the mylohyoid muscle. It is named for its passage from the chin (“genio-” is a standard prefix for “chin”) to the hyoid bone. Extrinsic muscles of the tongue.

Where does geniohyoid attach to mandible?

Hyoid bone
It is named for its passage from the chin (“genio-” is a standard prefix for “chin”) to the hyoid bone….