Thursday, June 15, 2023

Tongue: Blood supply.. blood supply to the tongue from the tonsillar branch of the facial artery and the ascending pharyngeal artery



Tongue:

Blood supply:

The tongue receives its blood supply primarily from lingual artery, a branch of the external carotid artery. Veins of the tongue, the lingual veins, drain into internal jugular vein.
The floor of mouth supply from the lingual artery.

facial artery:

2nd  blood supply to the tongue from the tonsillar branch of the facial artery and the ascending pharyngeal artery.
The triangle formed by the intermediate tendon of the digastric muscle, the posterior border of the mylohyoid muscle and the hypoglossal nerve is sometimes called Pirogov's, Pirogoff's, or Pirogov-Belclard's triangle.

severe hemorrhage from the tongue:

The lingual artery is a good place to stop severe hemorrhage from the tongue. Innervation Nerves which supply the sensation and taste of the tongue differ between the anterior and posterior parts.

Anteriorly:

taste is passed along the chorda tympani, a branch of the facial nerve.
Sensation is passed along lingual nerve, a branch of the trigeminal nerve.

Posteriorly:

both taste and sensation are passed along the glossopharyngeal nerve.
All intrinsic and extrinsic muscles of the tongue are supplied by the hypoglossal nerve, with the exception of the palatoglossus. The palatoglossus is innervated by the vagus nerve.