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The Heart Chambers and Their Functions

Introduction to the Chambers of the Heart:

The heart is made up of image descriptionfour chambers.

Unlabelled image of the interior view of the heart.
Interior view of the heart with the chambers of the heart highlighted in green.
heart chambers
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Unlabelled image of the posterior view of the heart - image 1
Labelled image of the right atrium on the posterior side of the heart.
Labelled image of the right and left atrium on the posterior side of the heart.
Unlabelled image of the interior view of the heart.
Labelled image of the right atrium in the interior of the heart.
Labelled image of the right and left atrium in the interior of the heart.
The right and left atrium of the heart.
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  • Extending anteriorly from each thin-walled atrium is a small, ear shaped appendage called an image descriptionauricle (l., auricula, little ear) that expands the volume of the chamber. Blood drains into the atria from the pulmonary and systemic circulatory systems.
Unlabelled image of the anterior view of the heart - image 1.
The auricles of the heart.
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Unlabelled image of the anterior view of the heart - image 1.
Labelled image of the right ventricle of the heart on the anterior side of the heart.
Labelled image of the right and left ventricle of the heart on the posterior side of the heart.
Unlabelled image of the interior view of the heart.
Labelled image of the right ventricle in the interior of the heart.
Unlabelled image of the posterior view of the heart - image 1
Labelled image of the right ventricle on the posterior side of the heart.
Labelled image fo the right and left ventricle on the posterior side of the heart.
The left and right ventricle.
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  • The right ventricle pumps blood through the pulmonary circulatory system and the thicker-walled left ventricle pumps blood through the long systemic circulatory system.
Unlabelled image of the interior view of the heart.
Labelled image of the interior ventricular sulcus.
The interventricular septum.
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  • On the anterior surface of the heart. the image descriptioninterventricular septum is marked by a shallow diagonal groove known as the anterior interventricular sulcus (or groove), which is occupied by the anterior interventricular artery, great cardiac vein, and adipose tissue.
Unlabelled image of the anterior view of the heart.
Labelled image showing the anterior interventricular sulcus on the anterior side of the heart.
The anterior interventricular sulcus.
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  • On the posterior surface of the heart, the ventricles are separated by the image descriptionposterior interventricular sulcus (or groove), which contains the posterior interventricular artery, middle cardiac vein, and adipose tissue.
Unlabelled image of the posterior view of the heart - image 2
Labelled image of the posterior interventricular sulcus on the posterior view of the heart.
The posterior interventricular sulcus.
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Test yourself:

Anterior view: [image descriptionShow/image descriptionHide answers]

Test yourself image for the anterior view of the heart with answers hidden.
Test yourself image for the anterior view of the heart with the answers shown.
Test yourself image for the anterior view of the heart.
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Interior view: [image descriptionShow/image descriptionHide answers]

Test yourself image for the interior view of the heart with answers hidden.
Test yourself image for the interior view of the heart with answers shown.
Test yourself image for the interior view of the heart.
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Posterior view: [image descriptionShow/image descriptionHide answers]

Test yourself image for the posterior view of the heart with answers hidden.
Test yourself image for the posterior view of the heart with answers shown.
Test yourself image for the posterior view of the heart.
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