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Pharyngeal Pouches & Clefts — Head, Neck & Pharyngeal Apparatus
Embryology Question Bank
Embryology Question Bank
Pharyngeal Pouches & Clefts
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Pharyngeal Pouches & Clefts MCQs: practice questions
Sample Pharyngeal Pouches & Clefts multiple-choice questions from Head, Neck & Pharyngeal Apparatus.
Which pharyngeal pouch gives rise to the inferior rather than superior parathyroid?
- A. Ultimobranchial body
- B. Third pouch
- C. First pouch
- D. Fourth pouch
- E. Second pouch
What is the epithelial lining of a pharyngeal pouch derived from?
- A. Neural crest
- B. Paraxial mesoderm
- C. Endoderm
- D. Ectoderm
- E. Somatic mesoderm
What does the fourth pharyngeal pouch form?
- A. Auditory tube
- B. External auditory meatus
- C. Superior parathyroid gland and ultimobranchial body
- D. Inferior parathyroids and thymus
- E. Palatine tonsil
Which pharyngeal pouch gives rise to the thymus?
- A. Groove 1
- B. Third pouch
- C. Second pouch
- D. Fourth pouch
- E. First pouch
What is a pharyngeal fistula in the source?
- A. A cyst within the thyroid gland
- B. A connection between stomach and trachea
- C. A patent tract from the internal tonsillar area to the external neck
- D. A defect in the palate
- E. A persistent thyroglossal duct
Which immune abnormality in DiGeorge syndrome results from thymic absence?
Which endocrine deficiency in DiGeorge syndrome results from parathyroid absence?
What is the embryologic basis of a pharyngeal cyst?
Which pharyngeal pouches fail to differentiate in DiGeorge syndrome?
What happens to pharyngeal grooves 2–4 normally?
Which syndrome is an example of first arch syndrome?
What does the second pharyngeal pouch form?
Which structure forms from the fourth pouch and contains neural-crest-derived C cells?
What cellular migration defect causes first arch syndrome?
What happens to pharyngeal membranes 2–4?
Where is a pharyngeal cyst generally located?
Where does a typical pharyngeal fistula open externally?
What causes DiGeorge syndrome in the source?
What does the first pharyngeal pouch form?
Which syndrome results from abnormal development of pharyngeal arch 1?
Which pharyngeal structure normally forms the epithelial lining of the palatine tonsil crypts?
Which pharyngeal groove normally becomes obliterated after arch 2 overgrows it?
Which other disorder is listed as a first arch syndrome?
Which cardiovascular abnormality in DiGeorge syndrome is linked to neural crest dysfunction?
What is the epithelial lining of a pharyngeal groove derived from?
What do neural crest cells entering the ultimobranchial body form?
Which groove forms the external auditory meatus?
Which pharyngeal membrane forms the tympanic membrane?
What does the third pharyngeal pouch form?
What gene mutation is associated with Treacher Collins syndrome in the source?