Neck: tongue

Question 1

Features of Ventral Surface (lower) of the tongue

Answer 1

• Frenulum linguale: ridge of mucous membrane at the midline, connecting tongue to the floor of the mouth
• Sublingual Papillae: Ending of the frenulum posteriorly
• Deep lingual vein: on either side of frenulum
• Fimbriated ridge: Lies lateral to Lingual Vein

Question 2

in the upper (dorsal) surface of the tongue, anterior 2/3 is seperated from posterior 1/3 by

Answer 2

Sulcus terminalis (V shaped groove)

Question 3

Anterior 2/3 of tongue lies in …..

Answer 3

Oral cavity

Question 4

Posterior 1/3 of the tongue lies in….

Answer 4

Oropharynx

Question 5

Mass of lymphoid tissue in posterior 1/3 of tongue is called

Answer 5

Lingual Tonsil

Question 6

Arterial Supply of the Tongue

Answer 6

• Deep Artery of the tongue: Continuation Lingual Artery, it supplies anterior part and tip of the tongue
• 2 dorsal Lingual Arteries: from 2nd part Lingual Artery (deep to hyoglossus), it supplies posterior part of tongue

Question 7

Venous Drainage of the tongue

Answer 7

• Deep vein of the tongue: drains in lingual vein
• 2 Venae comitants of lingual Artery: recieve 2 dorsal lingual Veins and drain in Lingual Vein

Question 8

Motor Innervation of the tongue

Answer 8

All muscles of the tongue are supplied by Hypoglossal N except palatoglossus Muscle, which is supplied by Pharyngeal plexus (of cranial root accessory N through Pharyngeal plexus of Vagus N)

Question 9

Sensory innervtation of the tongue

Answer 9

Anterior 2/3 of tongue:
* Lingual N: general sensation
* Chorda tympani: taste

Poterior 1/3 of tongue:
* Glossopharyngeal N: general & taste sensations

Root of tongue:
* Internal Laryngeal N: General

Question 10

All lingual Papillae contain taste buds except

Answer 10

filiform Papillae