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.
Floor muscles of digastric triangle.
Investing fascia covers the roof of the triangle while visceral fascia covers the floor.
The anterior triangle is subdivided by the hyoid bone suprahyoid and infrahyoid muscles into four triangles.
Above by the lower border of the body of the mandible and a line drawn from its angle to the mastoid process.
However other muscles that have two separate muscle bellies include the ligament of treitz omohyoid occipitofrontalis.
Superior posterior belly of the digastric muscle.
Suprahyoid muscles digastric ant and post belly mylohyoid geniohyoid and stylohyoid.
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.
Muscles nerves blood vessels glands.
Digastric or submandibular triangle.
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 digastric muscle divides the anterior triangle of the neck into three smaller divisions.
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.
Muscles digastric muscle stylohyoid geniohyoid mylohyoid hyoglossus middle pharyngeal constrictor nerves mylohyoid nerve cn v.
A major landmark of the submandibular triangle is the submandibular gland innervated by the facial nerve.
Digastric fossa on the deep surface of symphysis menti of the mandible.
It is covered by the integument superficial fascia platysma and deep fascia ramifying in which are branches of the facial nerve and.
This paired triangle contains some very important structures such as the common carotid artery internal carotid.
The digastric muscle is composed of two bellies anterior and posterior connected by an intermediate round tendon.
On floor of mouth between mandible and genioglossus.
The carotid triangle of the neck has the following boundaries.
Below by the posterior belly of the digastricus.
It lies below the body of the mandible and extends in a curved form from the mastoid.
The posterior belly of digastric muscle forms the superior border of the carotid triangle.
2 bellies of digastric anterior.
Submandibular triangle is bordered by the mandible and bellies of the digastric muscle.
In front by the anterior belly of the digastricus.
Infrahyoid muscles omohyoid sternohyoid sternothyroid and thyrohyoid.
This salivary gland can be described as having two lobes which are divided by the posterior border of the mylohyoid muscle.
