Tongue Development Anatomy Quiz

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Questions and Answers

Which lymph nodes drain the tip of the tongue?

  • Submandibular lymph nodes
  • Deep cervical lymph nodes
  • Submental lymph nodes (correct)
  • Parotid lymph nodes

From which pharyngeal arch do the lateral lingual swellings originate?

  • 1st pharyngeal arch (correct)
  • 2nd pharyngeal arch
  • 3rd pharyngeal arch
  • 4th pharyngeal arch

What structure grows cranially to form the posterior 1/3 of the tongue?

  • Tuberculum impar
  • Foramen cecum
  • Copula (hypobranchial eminence) (correct)
  • Lateral lingual swellings

Which part of the tongue is derived from the tuberculum impar?

<p>Anterior 1/3 (A)</p> Signup and view all the answers

What occurs to the contribution of the 2nd pharyngeal arch during tongue development?

<p>It is eliminated by the hypobranchial eminence. (B)</p> Signup and view all the answers

What distinguishes the drainage of the anterior 2/3 from the posterior 1/3 of the tongue?

<p>Anterior drains to submandibular lymph nodes. (D)</p> Signup and view all the answers

During development, which structure fuses to form the body of the tongue?

<p>Lateral lingual swellings (D)</p> Signup and view all the answers

At which embryonic stage do the primary swellings for tongue development first appear?

<p>4 weeks (D)</p> Signup and view all the answers

Which structure is associated with the fusion of the anterior and posterior parts of the tongue?

<p>Sulcus terminalis (B)</p> Signup and view all the answers

Flashcards

Where does the tip of the tongue drain to?

The tip of the tongue drains to these lymph nodes.

Where do the sides of the tongue drain to?

The sides of the tongue drain to these lymph nodes.

Where does the posterior 1/3 of the tongue drain to?

The back part of the tongue drains to these lymph nodes.

What are the lateral lingual swellings?

Two lateral swellings that form the body of the tongue.

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What is the tuberculum impar?

A single median swelling that contributes to the tongue's development.

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What pharyngeal arches form the body of the tongue?

The anterior 2/3 of the tongue develops from these pharyngeal arches.

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What pharyngeal arches contribute to the posterior 1/3 of the tongue?

The posterior 1/3 of the tongue develops from the hypobranchial eminence, which originates from these pharyngeal arches.

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How does the hypobranchial eminence contribute to the tongue?

The hypobranchial eminence forms a V-shaped region that fuses with the anterior 2/3 of the tongue to create the posterior 1/3.

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What is the copula?

The part of the tongue formed by the hypobranchial eminence.

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