Floor Muscles Of Digastric Triangle

It lies below the body of the mandible and extends in a curved form from the mastoid. A major landmark of the submandibular triangle is the submandibular gland innervated by the facial nerve. Submandibular triangle is bordered by the mandible and bellies of the digastric muscle.

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The carotid triangle of the neck has the following boundaries.

Floor muscles of digastric triangle.

Suprahyoid muscles digastric ant and post belly mylohyoid geniohyoid and stylohyoid. Mastoid process of temporal bone. The posterior belly of digastric muscle forms the superior border of the carotid triangle. This salivary gland can be described as having two lobes which are divided by the posterior border of the mylohyoid muscle.

In front by the anterior belly of the digastricus. The anterior triangle is subdivided by the hyoid bone suprahyoid and infrahyoid muscles into four triangles. This paired triangle contains some very important structures such as the common carotid artery internal carotid. On floor of mouth between mandible and genioglossus.

The digastric triangle is one of the paired triangles in the anterior triangle of the neck. The carotid triangle the submental triangle and the submandibular triangle. However other muscles that have two separate muscle bellies include the ligament of treitz omohyoid occipitofrontalis. Lateral medial border of the sternocleidomastoid muscle.

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. Superior posterior belly 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. 2 bellies of digastric anterior.

Digastric or submandibular triangle. Below by the posterior belly of the digastricus. 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. Digastric fossa on the deep surface of symphysis menti of the mandible.

Infrahyoid muscles omohyoid sternohyoid sternothyroid and thyrohyoid. The two bellies of the muscle have different embryonic origins and hence are supplied by different cranial nerves. Above by the lower border of the body of the mandible and a line drawn from its angle to the mastoid process. Muscles digastric muscle stylohyoid geniohyoid mylohyoid hyoglossus middle pharyngeal constrictor nerves mylohyoid nerve cn v.

Muscles nerves blood vessels glands. Investing fascia covers the roof of the triangle while visceral fascia covers the floor. The digastric muscle divides the anterior triangle of the neck into three smaller divisions. 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.

The digastric muscle is composed of two bellies anterior and posterior connected by an intermediate round tendon. What are the contents of the submandibular triangle.