Asked by Hassan Elafify on May 07, 2024
Verified
A local anesthetic such as Novocaine decreases membrane permeability to Na+. The use of this anesthetic will
A) block sensory input into the CNS.
B) enhance the development of EPSPs.
C) cause membrane potential to move closer to threshold.
D) cause Cl− to enter cells instead of Na+.
E) depolarize the cell.
Novocaine
A brand name for procaine, a local anesthetic used to numb tissue in a specific area.
Membrane Permeability
The ability of a biological membrane to allow the passage of substances in and out of cells or organelles, determining the cell's level of interaction with its environment.
- Ascertain the basic concepts of synaptic potential fluctuations and their influence on neuron discharge.
Verified Answer
RA
Rheft AlqalbMay 12, 2024
Final Answer :
A
Explanation :
Local anesthetics like Novocaine work by blocking sodium channels, which prevents the initiation and propagation of action potentials. This effectively blocks sensory input into the CNS by preventing the transmission of pain signals.
Learning Objectives
- Ascertain the basic concepts of synaptic potential fluctuations and their influence on neuron discharge.
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