Heart Anatomy and Function

Front

The heart diagram

Back

The heart diagram illustrates the flow of blood through the heart chambers, valves, and major vessels.

Front

The function of the heart

Back

The heart is responsible for pumping blood throughout the body.

Front

Pathway of deoxygenated blood returns to the heart through ....

Back

Deoxygenated blood returns to the heart through the inferior and superior vena cava, entering the right atrium.

Front

Right ventricle function

Back

The right ventricle pumps deoxygenated blood to the lungs via the pulmonary valve and arteries.

Front

Oxygenation process in the lungs

Back

In the lungs, carbon dioxide is removed from the blood and replaced with oxygen through the pulmonary alveolar capillary network.

Front

Pathway of oxygenated blood

Back

Oxygenated blood travels from the lungs to the left atrium, then through the bicuspid (mitral) valve to the left ventricle.

Front

Left ventricle function

Back

The left ventricle pumps oxygenated blood through the aortic valve into the aorta for distribution throughout the body.

Front

Conduction System of the Heart

Back

The heart's conduction system regulates the pumping action and electrical impulses. It includes the sinoatrial node, intermodal pathways, and Purkinje fibers.

Front

Layers of the Heart

Back

The heart consists of three layers: the pericardium (outer layer), myocardium (middle layer), and endocardium (inner layer).

Front

Function of Pacemaker Cells

Back

Pacemaker cells control the rate and rhythm of the heart and are essential for the conduction system. They exhibit excitability, conductivity, contractility, and automaticity.