GENERAL HISTOLOGY

NERVOUS

NEURONS TYPES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When a neuron is resting, the inside of the axon has a ____ charge.
A
-55 mV
B
-70 mV
C
40 mV
D
-75 mV
Explanation: 

Detailed explanation-1: -The resting membrane potential of a neuron is about-70 mV (mV=millivolt)-this means that the inside of the neuron is 70 mV less than the outside. At rest, there are relatively more sodium ions outside the neuron and more potassium ions inside that neuron.

Detailed explanation-2: -Resting Membrane Potential A neuron at rest is negatively charged: the inside of a cell is approximately 70 millivolts more negative than the outside (−70 mV, note that this number varies by neuron type and by species).

Detailed explanation-3: -At rest, a typical neuron has a resting potential (potential across the membrane) of −60 to −70 millivolts. This means that the interior of the cell is negatively charged relative to the outside.

There is 1 question to complete.