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DH 314 - Oral Cavity and Pharynx wk 1
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DH 314 - Oral Cavity and Pharynx wk 1

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@EducatedSaxophone

Questions and Answers

What do the maxillary bones form during development?

  • A flexible joint
  • A mobile articulation
  • A movable hinge
  • An immobile articulation (correct)

    • Which of the following correctly describes the mandible?

  • Consists of two fused bones
  • Is an immobile structure
  • Is the largest bone in the skull
  • Has a mobile articulation (correct)

    • What structure contains each tooth socket in the maxilla and mandible?

  • Alveolar process (correct)
  • Root
  • Crown
  • Dentin

    • Which parts make up a mature and fully erupted tooth?

    <p>Crown and root(s)</p> Signup and view all the answers

    What is the outer layer of the tooth crown composed of?

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

    What color is the moderately hard inner layer of a tooth called dentin?

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

    Which component of the tooth is considered the soft innermost layer?

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

    How many maxillary bones are fused to form the maxilla?

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

    What is the primary reason dental professionals must be knowledgeable about the oral cavity?

    <p>To improve overall health of every patient</p> Signup and view all the answers

    Which structure marks the anterior boundary of the oral cavity?

    <p>The lips</p> Signup and view all the answers

    What distinguishes the oral cavity from the pharynx?

    <p>The presence of teeth in the oral cavity</p> Signup and view all the answers

    In what context is a change in oral tissue clinically significant?

    <p>When it signals a condition of clinical significance</p> Signup and view all the answers

    Which of the following is NOT a division of the oral cavity?

    <p>Posterior wall</p> Signup and view all the answers

    Why are anatomical illustrations oriented to show the head in anatomic position?

    <p>To provide a standardized reference</p> Signup and view all the answers

    Which part of the oral cavity does NOT include landmarks?

    <p>The oral cavity itself</p> Signup and view all the answers

    What is the role of the alveolar processes in the oral cavity?

    <p>They house the roots of teeth</p> Signup and view all the answers

    What structures are referred to as the 'tonsils' in patients?

    <p>Palatine tonsils</p> Signup and view all the answers

    What is the primary function of the palate?

    <p>To separate the oral and nasal cavities</p> Signup and view all the answers

    Which part of the palate is the anterior arched portion?

    <p>Hard palate</p> Signup and view all the answers

    Where is the incisive papilla located?

    <p>At the anterior part of the hard palate</p> Signup and view all the answers

    What defines the soft palate?

    <p>It is yellower, looser, and softer than the hard palate.</p> Signup and view all the answers

    What is the median palatine raphe?

    <p>A midline ridge of tissue from the incisive papilla to the uvula</p> Signup and view all the answers

    What can a palatal torus interfere with?

    <p>Prosthetic procedures for the maxillary alveolar process</p> Signup and view all the answers

    What are palatine rugae?

    <p>Firm irregular ridges of tissue in the hard palate</p> Signup and view all the answers

    What is the main feature of the oral cavity proper?

    <p>The tongue</p> Signup and view all the answers

    Which part of the tongue lies within the oral cavity proper?

    <p>The oral part of the tongue</p> Signup and view all the answers

    What is the area at the front of the tongue referred to as?

    <p>The apex</p> Signup and view all the answers

    What structure on the dorsal surface of the tongue separates it longitudinally?

    <p>The median lingual sulcus</p> Signup and view all the answers

    Which structures on the tongue are associated with taste buds?

    <p>Lingual papillae</p> Signup and view all the answers

    Where is the base of the tongue located?

    <p>In the pharyngeal region</p> Signup and view all the answers

    Which of the following is NOT true regarding the posterior one-third of the tongue?

    <p>It is located in the oral cavity proper</p> Signup and view all the answers

    What is the irregular mass of tissue found on the dorsal surface of the base of the tongue called?

    <p>Lingual tonsil</p> Signup and view all the answers

    What tissue mass is found on the dorsal surface of the base of the tongue?

    <p>Lingual tonsil</p> Signup and view all the answers

    Which structures are located on the underside of the tongue?

    <p>Deep lingual veins and plica fimbriata</p> Signup and view all the answers

    What defines the location of the floor of the mouth?

    <p>Inferior to the ventral surface of the tongue</p> Signup and view all the answers

    What is the anatomical feature connecting the tongue to the floor of the mouth?

    <p>Lingual frenum</p> Signup and view all the answers

    What is the function of the plica fimbriata?

    <p>To support the lingual frenum</p> Signup and view all the answers

    Which structures represent the lateral surface of the tongue?

    <p>Foliate lingual papillae</p> Signup and view all the answers

    What anatomical structure forms a V-shaped configuration on the floor of the mouth?

    <p>Sublingual fold</p> Signup and view all the answers

    What distinguishes the deep lingual veins on the ventral surface of the tongue?

    <p>They pass close to the surface</p> Signup and view all the answers

    Study Notes

    Importance of Oral Cavity Knowledge

    • Dental professionals play a crucial role in improving patient health.
    • Understanding the oral cavity and pharynx is vital for recognizing clinical conditions.

    Anatomic Position

    • Textbook illustrations depict the head in an anatomic position for precise reference.

    Oral Cavity Divisions

    • The oral cavity encompasses vestibules, dental arches, teeth, and the oral cavity proper, each with unique landmarks.
    • Anterior boundary marked by lips; posterior boundary defined by the pharynx (throat).

    Jaws and Alveolar Processes

    • Maxilla consists of two immobile, fused maxillary bones.
    • Mandible is a single bone with a mobile joint, allowing movement.
    • Alveolar processes are the bony extensions housing tooth sockets (alveoli).
    • Mature teeth feature both a crown and root structure.

    Tooth Structure

    • The crown comprises an outer layer of enamel (hard, white) and an inner layer of dentin (moderately hard, yellow) encasing the pulp (soft, pink).
    • Roots consist of dental pulp covered by dentin.

    Palate

    • The palate divides the oral cavity from the nasal cavity, featuring a hard anterior portion and a softer, more flexible posterior portion.
    • Incisive papilla is a prominent bulge at the anterior hard palate; palatine rugae are irregular ridges radiating from it.
    • Median palatine raphe is a ridge extending from the incisive papilla to the uvula.

    Palatal Torus

    • A palatal torus may appear at the midline and can impact prosthetic considerations.

    Tongue Anatomy

    • The tongue is the most prominent feature of the oral cavity.
    • Posterior one-third is the pharyngeal part, while the anterior two-thirds form the body.
    • Apex refers to the tip of the tongue; the dorsal surface has a median lingual sulcus.

    Lingual Structures

    • Lingual papillae, present on tongue surfaces, are associated with taste buds.
    • Lingual tonsil is located at the dorsal surface's base and should not be confused with palatine tonsils.
    • Foliate lingual papilla appear on the lateral surfaces of the tongue.

    Ventral Surface of Tongue

    • The underside features deep lingual veins, with lateral plica fimbriata showing fringelike projections.

    Floor of the Mouth

    • Inferior to the tongue in the oral cavity proper.
    • The lingual frenum is a midline fold of tissue connecting the tongue to the floor.
    • Sublingual folds are tissue ridges on either side of the floor, forming a V-shape towards the tongue's base.

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    Description

    This quiz covers Chapter 2 of the Dental Morphology course, specifically focusing on the oral cavity and pharynx. Students will test their knowledge on anatomical structures and functions related to this important area of dental health.

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