TOPIC 6

Question 1

Tongue - Papilla and function

Answer 1

Conical - Mechanical
Filiform - Mechnical
Marginal - Mechanical
Valate - Gustatory
Fungiform - Gustatory
Foliate - Gustatory

Question 2

Muscle of tongue

Answer 2

Instrinsic:
Fibra Longitudinalis (superf and deep)
Fibra Perpendicularis
Fibra Transversa

Extrinsic:
M.styloglossus
M.Hyoglossus
M.Genioglossus

Question 3

Other structures of Tounge

Answer 3

Margins/Apex/Radix
Frenulum lingua
Papilla
Lyssa

Question 4

Bloodsupply toung

Answer 4

Primarly through paired Lungual artery
After entering tongue.- Deep lingual artery
Runs with hypoglossus nerve
From lingual facial trunk from external carotid a.
Sublingual artery from facial artery

Question 5

Motor inervation of tongue

Answer 5

N. Hypoglossus
Foramen: Foramen Hypoglossus
Passes: Rostrally between CN X and CN XI
Medialy on m.digastricus
Runs with A.Lingualis
Compleetes the ansa cervicalis with the first cervical spinal nerve.
Innervates tge extrinsic and Instrinsiv muscles of the tongue.

Question 6

Sensory innervation

Answer 6

N.lingualis

• Branch of N.mandibularis (V3)
• Devide to deep and superf as it reaches tongue
• Sensory to the first 2/3 of tongue

N.Glossopharyngeus

• CN IX
• Sensory to caudak 1/3 of tongue