Anatomy of the Pharynx

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Questions and Answers

What is the primary function of the pharyngeal cavity?

  • Production of hormones
  • Regulation of body temperature
  • Storage of nutrients
  • Common pathway for air and food (correct)

At which level of the vertebra does the pharynx become continuous with the esophagus?

  • C8
  • C3
  • C5
  • C6 (correct)

What is the name of the opening that connects the oral cavity to the oropharynx?

  • Oropharyngeal isthmus (correct)
  • Pharyngeal aperture
  • Laryngeal inlet
  • Nasal choanae

What is the name of the tubes that open into the lateral walls of the nasopharynx?

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

What are the functions of the tonsils located on the deep surface of the pharyngeal walls?

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

What is the shape of the pharynx?

<p>A musculofascial half-cylinder tube (B)</p> Signup and view all the answers

What is the primary function of the pharyngeal tonsil in the nasopharynx?

<p>Filtering lymphoid tissue from the mucosa (C)</p> Signup and view all the answers

What is the term for the enlargement of the pharyngeal tonsil?

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

Which of the following muscles is NOT a part of the pharynx wall?

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

Which nerve is responsible for the majority of motor and sensory innervation of the pharynx?

<p>Vagus nerve [X] (A)</p> Signup and view all the answers

What is the primary source of arterial blood supply to the pharynx?

<p>External carotid artery (B)</p> Signup and view all the answers

What is the name of the tube that connects the middle ear to the nasopharynx?

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

Flashcards

Pharyngeal Cavity Function

Serves as a shared pathway for both air and food.

Pharynx-Esophagus Transition

The pharynx transitions into the esophagus at the level of the C6 vertebra.

Oropharyngeal Isthmus

The opening connecting the oral cavity to the oropharynx.

Pharyngotympanic Tubes

Tubes opening into the lateral walls of the nasopharynx, connecting to the middle ear.

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Tonsil Function

Provide defense functions as part of the immune system.

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Pharynx Shape

A musculofascial half-cylinder tube.

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Pharyngeal Tonsil Function

Filters lymphoid tissue from the mucosa.

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Adenoids

Enlargement of the pharyngeal tonsil.

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Pharynx Innervation

The vagus nerve is responsible for most motor and sensory innervation of the pharynx.

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Pharynx Blood Supply

The external carotid artery provides the primary arterial blood supply to the pharynx.

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Pharyngotympanic Tube

Connects the middle ear to the nasopharynx, equalizing pressure.

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