Floor Muscles Of Digastric Triangle

Digastric or submandibular triangle.

Floor muscles of digastric triangle.

Mastoid process of temporal bone. It lies below the body of the mandible and extends in a curved form from the mastoid. Below by the posterior belly of the digastricus. The digastric muscle also digastricus named digastric as it has two bellies is a small muscle located under the jaw the term digastric muscle refers to this specific muscle.

Suprahyoid muscles digastric ant and post belly mylohyoid geniohyoid and stylohyoid. Muscles digastric muscle stylohyoid geniohyoid mylohyoid hyoglossus middle pharyngeal constrictor nerves mylohyoid nerve cn v. Infrahyoid muscles omohyoid sternohyoid sternothyroid and thyrohyoid. The carotid triangle the submental triangle and the submandibular triangle.

Superior posterior belly of the digastric muscle. A major landmark of the submandibular triangle is the submandibular gland innervated by the facial nerve. The carotid triangle of the neck has the following boundaries. The anterior triangle is subdivided by the hyoid bone suprahyoid and infrahyoid muscles into four triangles.

The posterior belly of digastric muscle forms the superior border of the carotid triangle. Above by the lower border of the body of the mandible and a line drawn from its angle to the mastoid process. Investing fascia covers the roof of the triangle while visceral fascia covers the floor. Muscles nerves blood vessels glands.

The digastric triangle is one of the paired triangles in the anterior triangle of the neck. In front by the anterior belly of the digastricus. Submandibular triangle is bordered by the mandible and bellies of the digastric muscle. It is covered by the integument superficial fascia platysma and deep fascia ramifying in which are branches of the facial nerve and.

Digastric triangle also known as submandibular triangle is named due to it is position in the middle of the two bellies of the digastric muscle and inferior towards the base of the mandible. Lateral medial border of the sternocleidomastoid muscle. The two bellies of the muscle have different embryonic origins and hence are supplied by different cranial nerves. The triangles of the neck are surgically focused first described from early dissection based anatomical studies which predated cross sectional anatomical description based on imaging see deep spaces of the neck.

This paired triangle contains some very important structures such as the common carotid artery internal carotid. What are the contents of the submandibular triangle. On floor of mouth between mandible and genioglossus. The digastric muscle divides the anterior triangle of the neck into three smaller divisions.

2 bellies of digastric anterior. The digastric muscle is composed of two bellies anterior and posterior connected by an intermediate round tendon.