Difference Between Cardiac Muscle And Skeletal Muscle

Difference Between Cardiac Muscle And Skeletal Muscle

Difference Between Cardiac Muscle And Skeletal Muscle

The heart pumps blood throughout the body through a network of tubes called arteries and veins. It has four chambers: right atrium, right ventricle, left atrium and left ventricle.

Cardiomyocytes have long, thin cell bodies with many projections called T-tubules.

Skeletal muscle tissue is made up of bundles of fibres called myofibers. These myofibers are surrounded by connective tissue.

The T-tubule system allows cardiomyocytes to receive signals from other cells.

The T-tubules are specialized structures within the cell membrane that allow the cardiomyocyte to receive signals from other parts of the body. This is how the heart contracts.

Cardiomyocytes are electrically excitable.

Cardiomyocytes (cardiac muscle) are electrically excitable cells that generate an electric current called an action potential. These cells are responsible for the contraction of cardiac muscle tissue.

Cardiomyocytes generate action potentials (AP) when they receive an impulse from another cell.

Skeletal muscle cells do not generate APs. Instead, they respond to the action potentials generated by cardiomyocytes.

Cardiomyocytes can be classified into two groups based on their shape: round or rod-shaped.

Round shaped cardiomyocytes are called atrial myocytes. Rod shaped cardiomyocytes make up ventricular myocytes. Atrial myocytes are responsible for generating the rapid heartbeat associated with the sinus node. Ventricular myocytes are responsible for pumping blood throughout the body.


The Difference Between Cardiac Muscle And The Skeletal Muscles


Cardiomyocytes are cells that contract when stimulated by electrical impulses from other cells. They are found in the heart, but also in skeletal muscles.

Cardiac Muscle Vs. Skeletal Muscle



Skeletal Muscle vs. Cardiac Muscle

Cardiac muscle has a thick outer membrane called the endocardium, while skeletal muscle does not have one.

Cardiac muscle is more efficient at converting chemical energy into mechanical work than skeletal muscle. Cardiac muscle is made up of bundles of long fibres called myofibrils. Skeletal muscle is made up of short fibres called sarcomeres. Cardiac muscle is more efficient at converting chemical energy into mechanical work than skeletal muscle.

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