Podcast
Questions and Answers
What is the blood supply for the external auricle (pinna)?
What is the blood supply for the external auricle (pinna)?
- Facial artery
- Superficial temporal and posterior auricular arteries (correct)
- Maxillary artery
- Superior thyroid artery
Which nerve provides sensory innervation to the external auricle (pinna)?
Which nerve provides sensory innervation to the external auricle (pinna)?
- Glossopharyngeal nerve (CN 9)
- Facial nerve (CN 7)
- Vagus nerve (CN 10)
- Great auricular nerve (C2-C3) and auriculotemporal nerve (CN 5) (correct)
What is the composition of the lateral 1/3 of the external auditory meatus?
What is the composition of the lateral 1/3 of the external auditory meatus?
- Bony and lined by hair-lined skin with ceruminous glands
- Cartilaginous and lined by hair-lined skin with ceruminous glands (correct)
- Bony and lined by hairless skin with ceruminous glands
- Cartilaginous and lined by hairless skin with ceruminous glands
What is the function of the pinna in the ear?
What is the function of the pinna in the ear?
What is the diameter of the tympanic membrane (eardrum)?
What is the diameter of the tympanic membrane (eardrum)?
What is the composition of the margin of the tympanic membrane?
What is the composition of the margin of the tympanic membrane?
What is the floor of the middle ear lined by?
What is the floor of the middle ear lined by?
What forms the lateral wall of the middle ear?
What forms the lateral wall of the middle ear?
What constitutes the boundaries of the middle ear?
What constitutes the boundaries of the middle ear?
Which part of the cranium forms a partition in the skull?
Which part of the cranium forms a partition in the skull?
What is the function of the falx cerebri?
What is the function of the falx cerebri?
Which layer of the meninges forms delicate reticular fibers?
Which layer of the meninges forms delicate reticular fibers?
What is the shape of the diaphragma sellae?
What is the shape of the diaphragma sellae?
Which part of the cranium separates the two cerebellar hemispheres?
Which part of the cranium separates the two cerebellar hemispheres?
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