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Questions and Answers
What is the extent of the nasopharynx?
What is the extent of the nasopharynx?
- From the base of the skull to the level of soft palate (correct)
- From the base of the skull to the 6th cervical vertebra
- From the base of the skull to the lower border of the cricoid cartilage
- From the base of the skull to the level of hard palate
What is the structure that should be kept permanently opened to allow free breathing through the nasopharynx?
What is the structure that should be kept permanently opened to allow free breathing through the nasopharynx?
- Pharyngeo-basilar fascia (correct)
- Pharyngeal constrictors
- Mucous membrane
- Fibrous layer
What is the special feature of the nasopharynx related to the Eustachian tube?
What is the special feature of the nasopharynx related to the Eustachian tube?
- Nasopharyngeal tonsil is located at the roof
- Salpingeo-pharyngeal fold is produced by the salpingeo-pharyngeus muscle
- The tubal elevation is produced by the cartilage of the tube & above and behind
- Pharyngeal opening of the Eustachian tube is behind the inferior nasal concha (correct)
What is the extent of the pharynx?
What is the extent of the pharynx?
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What is the composition of the pharyngeal wall from inside outwards?
What is the composition of the pharyngeal wall from inside outwards?
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Study Notes
Nasopharynx
- Extends from the posterior nares to the soft palate
- The nasopharyngeal tonsil (adenoids) is found here
- The Eustachian tube connects the nasopharynx to the middle ear
- The Eustachian tube should remain open to allow free breathing
Pharynx
- Extends from the base of the skull to the level of the cricoid cartilage
- Wall of the pharynx, from inside outwards:
- Mucosa
- Submucosa
- Muscular layer
- Fibrous layer
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