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Physiology of hearing and hearing loss

Question
2 out of 39
 

Hair cell of organ of Corti supported by: [PGI Nov 09]



A Onodi cells
B Deiter cell

C Hensen cell
D Bullar cell

E Heller cell

Ans. B & C. Deiter cell & Hensen cell

"Supporting cell: Deiter's cetls" are situated between the outer hair cells & provide support to the later. Cells of Hensen lie outside the Deiter's cells" -

"Hensen cell: One of the supporting cells? in the organ of Corti, immediately to the outer side of the cells' of Deiters (www.drugs. com/diet/hen sen-cell)

Organ of Corti: components

Organ of Corti is the sense organa of hearing and situated on basilar membrane

Tunnel of Corti: Formed by inner & outer rods

Hair cells: They are important receptor cells of hearing & transducer sound energy into the electrical enerqy?

- Inner hair cells: Form a single row and more important in the transmission of auditory impulse

- Outer hair cells: Arranged into three or four rows

Supporting cell: Deiter cell & Hensen cell?

Tectorial membrane: Consists of gelatinous matrix with delicate fibers

Hellar cells are ethmoidal air cell that extend along the medial roof of the maxillary sinus. They may exist as a discrete cells or the may open into maxillary sinus or intundibuluttv' - Cummings Otolaryngology4th/1162

"Onodi cells are posterior & lateral extension of posterior ethmoidal cells. These cells can surround the optic nerve tract" & put the nerve at risk during surgery" - Cummings Otolaryngology 4th/1162

Physiology of hearing and hearing loss Flashcard List

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