Roof Of Digastric Triangle

Superiorly inferior border of the mandible jawbone. The submandibular triangle or submaxillary or digastric triangle corresponds to the region of the neck immediately beneath the body of the mandible boundaries and coverings. The stylomandibular ligament subdivides the digastric triangle within anterior and posterior parts.

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The anterior triangle is situated at the front of the neck.

Roof of digastric triangle.

This triangle contains major arteries veins and nerves of the neck and head. Posterior belly of digastric muscle pbd superior belly of the omohyoid muscle so anterior border of sternomastoid muscle st roof. The posterior portion of the triangle is superiorly constant with the parotid region. Platysma cervical division of facial nerve and ascending branch of transverse cervical nerve are located in the superficial fascia above the roof.

What is the floor and roof of the carotid triangle. The digastric triangle is one of the paired triangles in the anterior triangle of the neck. The digastric triangle is subdivided into anterior and posterior parts by the stylomandibular ligament which goes from the tip of the styloid process to the angle of the mandible. Floor posteriorly is inferior pharyngeal conatrictor muscle anteriorly is the thyrohyoid muscle and hypoglossus roof is investing layer of fascia cutaneous nerves and platysma.

Medially sagittal line down the midline of the neck. Skin superficial fascia platysma 17. Above by the lower border of the body of the mandible and a line drawn from its angle to the. Its roof is formed by deep and superficial fascia platysma and skin.

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 roof of the triangle is formed the skin superficial cervical fascia the platysma and deep cervical fascia. The branches of the facial nerve and transverse cutaneous cervical nerves also pass over the roof of the triangle. Anteriorly by the anterior belly of digastric muscle.

Like the anterior triangle the digastric submandibular triangle is limited superiorly by the same structures. Carotid triangle boundaries of the carotid triangle are. Contents in the anterior part of the triangle. The triangles of the neck are surgically focussed first described from early dissection based anatomical.

Posterior belly of digastric muscle posterior anterior portion of scm. The digastric triangle is one of the paired triangles in the anterior triangle of the neck. Investing fascia covers the roof of. The posterior part of the triangle is constant above with the parotid region.

Laterally anterior border of the sternocleidomastoid.