Development Of The Tongue

Development Of The Tongue

Name the branchial arches involved in the development of the tongue, and write in detail about the development of the tongue.
Answer:

• The branchial arches that are involved in the development of Longue are:
  • 1 arch
  • 2 arches and
  • 4 arches.

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Development of tongue:

1. Development of anterior two-thirds.

• A midline swelling arises from the mandibular process called tuberculum impar.
• The medial most part of the first arch proliferates to form a pair of pulls of lingual swelling
• These lingual swellings enlarge and merge with others and the tuberculum impairs to form large arms.
• This forms the anterior two third of the tongue,

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2. Development of posterior one-third,

• Caudal to the median swelling, another midline swelling Called (lie hypobranchial eminence arises from the III and IV arches,
• II In divided Into

1. Anterior popular.
   • it forms the posterior one-third of the tongue,
2. Hypolunnehlal eminence.
   • gives rise to the epiglottis,

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3. Development of the posterior-most part of the tongue,

• it is derived from IV branchial arch.

4. Development of the musculature of the tongue,

• is derived from Iho occipital myotomes,
• Further development of tongue.
• The longue sopranos from to floor of the mouth by down-growth ol meltdown,
• This degenerates to form the lingual sulcus and gives Iho longue mobility,
• Various papillae of tongue are in the anterior purl,
• Lymphatic tissue develops in the posterior part.

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Anomalies: