Neck: tongue Flashcards

1
Q

Features of Ventral Surface (lower) of the tongue

A
  • 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
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2
Q

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

A

Sulcus terminalis (V shaped groove)

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3
Q

Anterior 2/3 of tongue lies in …..

A

Oral cavity

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4
Q

Posterior 1/3 of the tongue lies in….

A

Oropharynx

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5
Q

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

A

Lingual Tonsil

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6
Q

Arterial Supply of the Tongue

A
  • 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
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7
Q

Venous Drainage of the tongue

A
  • 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
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8
Q

Motor Innervation of the tongue

A

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)

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9
Q

Sensory innervtation of the tongue

A

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

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10
Q

All lingual Papillae contain taste buds except

A

filiform Papillae

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