An organ made of voluntary muscular structure
It is an organ of speech, and taste. It helps in chewing the food and in swallowing.
occupies the floor of the mouth
base attached to hyoid bone
a fold of mucous membrane under the tongue called the frenulum: it attaches the tongue to the floor of the mouth
superior surface stratified squamous epithelium
there are little projections on the tongue with nerve endings; called papillae or taste buds
Types of papillae
1. Vallate papillae :
arranged in an inverted V shape towards the base of the tongue.
largest papillae and are easily seen
2. Fungiform papillae
at the tip and the edges of the tongue
3. Filiform papillae
on the surface of the anterior two-thirds
of the tongue
Lingual branch of the external carotid artery.
Venous drainage by lingual vein
internal jugular vein.
Hypoglossal nerve (12th)
Lingual branch of the mandibular nerve
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