GENERAL HISTOLOGY

NERVOUS

NEURONS TYPES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cl-ions flowing into a neuron will cause
A
depolarization
B
hyperpolarization
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Answer and Explanation: The influx of chloride ions (Cl-) causes hyperpolarization of the membrane. When chloride ion channels open on the membrane of an excitable cell, chloride ions will flow into the cell’s cytosol causing the inside of the cell to become more negative (i.e. hyperpolarize).

Detailed explanation-2: -Hyperpolarization is often caused by efflux of K+ (a cation) through K+ channels, or influx of Cl– (an anion) through Cl– channels.

Detailed explanation-3: -In contrast, at high intracellular Cl– concentration, activation of a Cl– conductance will depolarize the cell due to Cl– efflux.

There is 1 question to complete.