PATHOLOGY MCQ
NERVOUS SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which channel opens in response to physically stretching the membrane?
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Voltage-gated
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Ligand-gated
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Mechanically-gated
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Neural-gated
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Explanation:
Detailed explanation-1: -Mechanosensitive channels, mechanosensitive ion channels or stretch-gated ion channels are membrane proteins capable of responding to mechanical stress over a wide dynamic range of external mechanical stimuli.
Detailed explanation-2: -Mechanically activated ion channels can respond to a diverse range of physical forces such as vibration, stretch, or sound waves (Delmas et al., 2011).
Detailed explanation-3: -Mechano-gated channels are a subtype of gated ion channels engaged in converting mechanical stimuli to chemical or electrical signals thereby modulating sensation. To date, a few families of mechano-gated channels (DEG/ENaC, TRPN, K2P, TMC and Piezo) have been identified in eukaryotes.
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