Station 4: Tongue and pharynx.

Vallate papillae

Circumvallate papillae

Median Sulcus

Lingual Tonsil

Lingual frenulum

right line

sublingual folds

left arrow

sublingual caruncle

What is the sublingual caruncle the opening to ?

Submandibular Glands

How many intrinsic muscles of the tongue

4

What are the 4 extrinsic muscles of the tongue

genioglossus styloglossus palatoglossus hyoglossus

Genioglossus

Function of genioglossus?

Protrudes tongue

Hyoglossus

Fucntion of hyoglossus?

depresses and retracts the tongue

Palatoglossus

Fucntion of palatoglossus

Elevates posterior tongue

Styloglossus

Fucntion of styloglossus

elevates and retracts the tongue

What nerve serves the anterior 2/3 of the tongue general sensoryy

Lingual Nerve

What nerve serves the anterior 2/3 of the tongue special sensoryy

Facial Nerve

What nerve serves the anterior 2/3 of the tongue special and general sensoryy

Glossopharyngeal Nerve

Blood supply of tongue artery

Lingual Artery

Drainage of tongue vein

Lingual Vein

What CN supplies all the extrinsic and intrinsci nerves of the tongue except the palatoglossus

Hypoglossal Nerve

What nerve supplies the palatoglossus

Vagus nerve

Where does the hypoglossal nerve originate

Medulla

Hypoglossal Canal

Hypoglossal Nerve

Killians Dehiscence