(B) The correct answer is $B$. Sodium ions $(Na^+)$ play a crucial role in the generation and conduction of action potentials in cardiac muscle cells.

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(B) The correct answer is $B$. Sodium ions $(Na^+)$ play a crucial role in the generation and conduction of action potentials in cardiac muscle cells. They are essential for initiating and maintaining the contraction of the heart muscle.

Class 11 Biology Body Fluids and Circulations Structure and function of heart

Medium

Which of the following minerals is responsible for regulating your heartbeats?

A
Sulphur
B
Sodium
C
Potassium
D
Iron

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Class 11 Questions

Class 11

Biology Questions

Chapter

Body Fluids and Circulations

Subtopic

Structure and function of heart

Which valve is located between the right atrium and the right ventricle?

Easy

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Match the following columns:

Column-$I$ Column-$II$

$P$. Interatrial septum $I$. Thick fibrous tissue

$Q$. Interventricular septum $II$. Thin wall

$R$. Atrioventricular septum $III$. Thick wall

Column-$I$	Column-$II$
$P$. Interatrial septum	$I$. Thick fibrous tissue
$Q$. Interventricular septum	$II$. Thin wall
$R$. Atrioventricular septum	$III$. Thick wall

Medium

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In a rabbit,oxygenated blood flows from:

Medium

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Where are the papillary muscles located?

Easy

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In mammals,the mitral valve regulates the flow between which of the following?

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Which of the following minerals is responsible for regulating your heartbeats?

Similar Questions

Which valve is located between the right atrium and the right ventricle?

Match the following columns: Column-$I$ Column-$II$ $P$. Interatrial septum $I$. Thick fibrous tissue $Q$. Interventricular septum $II$. Thin wall $R$. Atrioventricular septum $III$. Thick wall

In a rabbit,oxygenated blood flows from:

Where are the papillary muscles located?

In mammals,the mitral valve regulates the flow between which of the following?

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Match the following columns:

Column-$I$ Column-$II$

$P$. Interatrial septum $I$. Thick fibrous tissue

$Q$. Interventricular septum $II$. Thin wall

$R$. Atrioventricular septum $III$. Thick wall