Anatomy of the Tongue
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Questions and Answers

What is the name of the tonsil located in the tongue?

  • Nasopharyngeal tonsil
  • Lingual tonsil (correct)
  • Tubal tonsil
  • Palatine tonsil

    • What is the name of the groove that divides the tongue into oral and pharyngeal parts?

  • Sulcus terminalis (correct)
  • Frenulum linguae
  • Median furrow
  • Plica fimbriata

    • What is the function of the papillae on the tongue?

  • To give the tongue its characteristic roughness and to provide taste buds (correct)
  • To produce mucus to aid in digestion
  • To filter out bacteria and other harmful substances from food
  • To regulate body temperature

    • What is the function of the foramen caecum?

    <p>It is the site from which the thyroid diverticulum grows down in the embryo</p> Signup and view all the answers

    What is the name of the folds that connect the posterior part of the tongue to the epiglottis?

    <p>Glossoepiglottic folds</p> Signup and view all the answers

    What is the name of the muscles related to the tongue in between the mandible and hyoid bones?

    <p>Geniohyoid and mylohyoid muscles</p> Signup and view all the answers

    What is the name of the depression on either side of the median glossoepiglottic fold?

    <p>Vallecula</p> Signup and view all the answers

    What is the name of the folds on the inferior surface of the tongue on either side of the frenulum?

    <p>Prominences produced by the deep lingual veins</p> Signup and view all the answers

    What is the characteristic of the fungiform papillae?

    <p>They are bright red in color and have a narrow pedicle and a large rounded head</p> Signup and view all the answers

    What is the purpose of the attachments of the root of the tongue?

    <p>To prevent swallowing of the tongue</p> Signup and view all the answers

    What is the function of the keratin on the filiform papillae?

    <p>To protect the tongue from abrasion</p> Signup and view all the answers

    What is the name of the part of the tongue that lies behind the palatoglossal arches?

    <p>Pharyngeal part</p> Signup and view all the answers

    What is the shape of the dorsum of the tongue?

    <p>Convex in all directions</p> Signup and view all the answers

    Where are the foliate papillae located?

    <p>At the lateral border of the tongue, just in front of the circumvallate papillae</p> Signup and view all the answers

    What separates the vallecula from the piriform fossa?

    <p>The lateral glossoepiglottic folds</p> Signup and view all the answers

    What is the name of the fold on the inferior surface of the tongue?

    <p>Frenulum linguae</p> Signup and view all the answers

    Study Notes

    The Tongue

    • The tongue has three parts: the root, tip, and body.
    • The root is attached to the styloid process, soft palate, mandible, and hyoid bone, making it impossible to swallow the tongue itself.
    • The body has a curved upper surface (dorsum) and an inferior surface confined to the oral part only.

    Dorsum of the Tongue

    • The dorsum is convex in all directions and divided into oral and pharyngeal parts by the sulcus terminalis.
    • The oral part makes up the anterior two-thirds, and the pharyngeal part makes up the posterior one-third.

    Oral Part of the Tongue

    • The oral part is placed on the floor of the mouth, with free margins in contact with the gums and teeth.
    • The superior surface has a median furrow and is covered with papillae, making it rough.
    • The inferior surface is covered with a smooth mucous membrane, with a median fold called the frenulum linguae.

    Pharyngeal Part of the Tongue

    • The pharyngeal part lies behind the palatoglossal arches and sulcus terminalis.
    • The mucous membrane has no papillae but has many lymphoid follicles that constitute the lingual tonsil.
    • Mucous glands are also present.

    Posteriormost Part of the Tongue

    • The posteriormost part is connected to the epiglottis by three folds of mucous membrane: the median glossoepiglottic fold and the right and left lateral glossoepiglottic folds.
    • On either side of the median fold, there is a depression called the vallecula.

    Papillae on the Tongue

    • There are four types of papillae:
      • Vallate or circumvallate papillae: large, 1-2 mm in diameter, 8-12 in number, situated in front of the sulcus terminalis, with taste buds.
      • Fungiform papillae: numerous near the tip and margins of the tongue, bright red in color, with a narrow pedicle and a large rounded head.
      • Filiform papillae or conical papillae: smallest and most numerous, cover the presulcal area of the dorsum, giving it a velvety appearance.
      • Foliate papillae: leaf-shaped, present at the lateral border just in front of circumvallate papillae.

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    Description

    Learn about the structure and parts of the tongue, including the root, tip, body, and dorsum, and their roles in the human mouth.

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