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Ear Development — Endocrine, Integumentary & Special Sense Development
Embryology Question Bank
Embryology Question Bank
Ear Development
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Ear Development MCQs: practice questions
Sample Ear Development multiple-choice questions from Endocrine, Integumentary & Special Sense Development.
What is the embryonic origin of the external auditory meatus epithelium?
- A. Neural crest
- B. Ectoderm of pharyngeal groove 1
- C. Mesoderm of arch 1
- D. Otic vesicle
- E. Endoderm of pouch 1
What is the embryonic origin of the malleus?
- A. Pharyngeal groove 1
- B. Pharyngeal pouch 1
- C. Reichert cartilage of arch 2
- D. Meckel cartilage of pharyngeal arch 1
- E. Otic vesicle
Which muscle moves the malleus?
- A. Staple muscle of arch 2
- B. Stapedius
- C. Ciliary muscle
- D. Tensor tympani
- E. Orbicularis oris
What is the embryonic origin of the incus?
- A. Reichert cartilage of arch 2
- B. Pharyngeal pouch 1
- C. Meckel cartilage of pharyngeal arch 1
- D. Otic vesicle
- E. Pharyngeal groove 1
Failure of the external auditory meatus meatal plug to canalize produces what anomaly?
- A. Atresia of the external auditory meatus
- B. Preauricular sinus
- C. Congenital cholesteatoma
- D. Microtia
- E. Congenital cataract
What is the embryonic origin of the otic placode?
What does the saccular portion of the otic vesicle form?
Which cranial-nerve ganglion is derived from the saccular portion?
Which muscle moves the stapes?
What is the embryonic origin of the auricle?
What type of hearing loss is associated with external auditory-meatus atresia?
What is the embryonic origin of the middle-ear cavity epithelium?
What does the connective tissue surrounding the membranous labyrinth become?
Which sensory structure is contained within the cochlear duct?
What tissue initially surrounds the membranous labyrinth?
What does the utricular portion of the otic vesicle form?
Which cranial nerve innervates tensor tympani?
What forms the perilymphatic space?
During which weeks is the organ of Corti particularly vulnerable to rubella exposure according to the source?
What is the embryonic origin of the stapes?
What adult system is derived from the otic vesicle?
What embryologic defect underlies microtia?
Which three germ-layer-related tissues contribute to the tympanic membrane?
Which cranial nerve innervates stapedius?
What structures surround the first pharyngeal groove and contribute to the auricle?
Which cranial-nerve ganglion is associated developmentally with the utricular portion?
What is the embryonic origin of the tympanic membrane?
What structure forms when the otic placode invaginates?
What is the embryonic origin of the auditory tube epithelium?
How does perilymph communicate with the subarachnoid space?