Damage to which of the following structures might produce hair cell loss? A.Basilar membrane B. Organ of Corti C. Reissner's membrane D. Scala tympani E. Scala vestibuli
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- Damage to which of the following structures might produce hair cell loss? A.Basilar membrane B. Organ of Corti C. Reissner's membrane D. Scala tympani E. Scala vestibuliA patient is not perceiving light touch on their ear. The problem could be in the integumentary system, peripheral nervous system or central nervous system. For each system, explain what would be going wrong that could cause this. How could you isolate the problem?where are hair cells also found (excluding cochlea)
- Explain how movements of the basilar membrane affect hair cells, and how hair cells can stimulate associated sensory neurons.Match the sensory receptor with its stimulus. Detects discriminative touch, located in dermis Detects deep pressure and vibration, located in dermis Detects fine touch, located in epidermis Detects stretch and movement, located in ligaments, dermis, and hypodermis 1. Merkel cells 2. Tactile corpuscles 3. Ruffini endings 4. Lamellated corpusclesWhich of the following is INCORRECT with respect to the location of hair cells? Question 38 options: Cupulae are located within the ampulla of a semicircular canal Hair cells are located in the vestibular complex and within the cochlear duct Wherever hair cells are located, that space is also filled with endolymph All of the above are correct
- Fill in the blanks: The spiral organ sits on the ___________membrane, and the stereocilia of the outer hair cells contact the ___________ membrane.Excitation of hair cells in the Organ of Corti involves A. Bending of the cilia towards the tallest cilium B. Opening of cation channels C. Bending of the kinocilium D. A, B E. A, B, CWhether ion channels open or close within the hair cell cilia is determined by the voltage of the cilia membrane. reflect the action of a second messenger within the cilia. depends on the tension exerted by the tip links on the insertional plaques. is controlled by metabotropic membrane receptors.
- After spinning in an office chair and then standing up quickly, you notice that the room is still spinning even though your head rotation has ceased. Which option best explains this phenomenon? Hair cells release a small amount of neurotransmitter at rest. The continued depolarization of hair cells within the utricle and saccule. Fluid continues to circulate through the semicircular canals. Two of the above.When waves push the basilar membrane up and down, the stereocilia move back and forth, opening up ion channels, allowing this ion to move into the hair cells and depolarizing the membrane. O CF O K* Na+ O H* O Ca* Ca+Please ASAP. Thanku Sensory transduction in the hair cell is mediated by ____________
