Larynx Overview: Laryngeal Cartilages

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Questions and Answers

What is the shape of the cricoid cartilage?

  • Triangular
  • Ring-shaped (correct)
  • Cylindrical
  • Pyramidal

Which part of the thyroid cartilage elongates into superior and inferior horns?

  • Thyrohyoid membrane
  • Laryngeal prominence
  • Oblique line
  • Laminae (correct)

What structure forms the vocal process on the arytenoid cartilages?

  • Lateral angle
  • Apex
  • Base
  • Anterior angle (correct)

Which ligament has an opening for the internal laryngeal nerve and superior laryngeal artery?

<p>Thyrohyoid membrane (C)</p> Signup and view all the answers

Which cartilage is fused anteriorly at the laryngeal prominence?

<p>Thyroid cartilage (C)</p> Signup and view all the answers

What is the lateral surface feature of each lamina of the thyroid cartilage?

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

Which structure forms the muscular process on the arytenoid cartilages?

<p>Base (A)</p> Signup and view all the answers

What does the free edge of the cricothyroid ligament form within the larynx?

<p>Vocal process (B)</p> Signup and view all the answers

Which cartilage forms the most inferior part of the larynx?

<p>Cricoid Cartilage (D)</p> Signup and view all the answers

What does the cricothyroid ligament connect?

<p>Cricoid cartilage to thyroid cartilage (C)</p> Signup and view all the answers

Which structure facilitates the movement of liquid and solid to the esophagus?

<p>Piriform fossa (C)</p> Signup and view all the answers

What is the function of the vestibular ligament in the larynx?

<p>Supporting the vocal folds (C)</p> Signup and view all the answers

Which muscle group depresses the larynx?

<p>Infrahyoid muscles (A)</p> Signup and view all the answers

What is the main function of the intrinsic laryngeal muscles?

<p>Close the laryngeal inlet (C)</p> Signup and view all the answers

Which muscle does not belong to the group of suprahyoid muscles that elevate the larynx?

<p>Sternothyroid (A)</p> Signup and view all the answers

What is the glottis composed of in the vocal apparatus?

<p>Vocal folds and rima glottidis (D)</p> Signup and view all the answers

Which muscle is responsible for adjusting the length of the vocal ligaments by tilting the thyroid cartilage?

<p>Cricothyroid (A)</p> Signup and view all the answers

During swallowing, which muscles narrow and close the laryngeal inlet?

<p>Oblique arytenoids and posterior cricoarytenoid (D)</p> Signup and view all the answers

Which muscle is responsible for abducting the vocal folds and opening the rima glottidis?

<p>Lateral cricoarytenoid (C)</p> Signup and view all the answers

Which nerve provides motor innervation to ALL muscles of the larynx except cricothyroid?

<p>Recurrent laryngeal nerve (D)</p> Signup and view all the answers

What is the function of the external laryngeal nerve?

<p>Motor innervation of cricothyroid (C)</p> Signup and view all the answers

Which arteries supply blood to the larynx?

<p>Inferior thyroid artery and superior laryngeal artery (B)</p> Signup and view all the answers

Which muscles are responsible for adducting the vocal folds and closing the rima glottidis?

<p>Transverse arytenoids and oblique arytenoids (A)</p> Signup and view all the answers

Which muscle acts as a relaxer of vocal ligaments?

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

What is the function of the pharyngotympanic tubes (Eustachian tubes)?

<p>Ensure near normal environmental air pressure in the middle ear (C)</p> Signup and view all the answers

What can an enlargement of the pharyngeal tonsils result in?

<p>Upper respiratory airway obstruction (B)</p> Signup and view all the answers

Where are the pharyngeal tonsils located?

<p>Nasopharynx (A)</p> Signup and view all the answers

What can cause a toothache in the upper rear teeth according to the text?

<p>Sinus infection or inflammation (C)</p> Signup and view all the answers

Which structure ventilates the middle ear and ensures normal air pressure?

<p>Pharyngotympanic tubes (D)</p> Signup and view all the answers

What type of epithelium lines the nasal cavity?

<p><em>Pseudostratified columnar ciliated epithelium</em> (B)</p> Signup and view all the answers

Which structure contains the openings of the pharyngotympanic tubes?

<p><em>Nasopharynx</em> (D)</p> Signup and view all the answers

What are the components of the upper respiratory tract?

<p>Nasal cavity, portions of pharynx, larynx, trachea, bronchi (A)</p> Signup and view all the answers

Which structure subdivides the nasal cavity and creates turbulence in inspired air?

<p>Middle nasal concha (B)</p> Signup and view all the answers

What is the function of the superior one-third of the nasal cavity?

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

Which of the following is part of the bony framework of the nasal cavity?

<p>Nasal conchae (B)</p> Signup and view all the answers

What are the components of the larynx?

<p>Cartilage and membranes (C)</p> Signup and view all the answers

Which cartilage in the larynx is known as Adam's apple?

<p>Thyroid cartilage (D)</p> Signup and view all the answers

What is the function of the ligaments in the larynx?

<p>Provide structural support and connect cartilages (A)</p> Signup and view all the answers

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