Neural Control and Coordination Question 30
30. Anesthetics reduce pain by blocking the transmission of nerve impulses. The kind of chemicals working as anesthetics are those that block
[1998]
(a) only the voltage-gated sodium channels in membranes
(b) only the voltage-gated potassium channels in membranes
(c) only the neuro-transmitter receptors
(d) voltage-gated sodium and potassium channels and neuro-transmitter receptors
Show Answer
Answer : d
Hints & Solutions
(d) Anesthetic chemicals block the voltage gate sodium and potassium channel. Today, the most common modern general anesthetics are mixtures of inhalable gases, which include nitrous oxide (laughing gas) and various derivatives of ether, such as Isoflurane, Sevoflurane, and desflurane.
