Ventricles: introduction | Acland's Video Atlas of Human Anatomy Skip to main content
5.1.3 Ventricles: introduction


Now we'll move on to look at the two ventricles and their inlet valves. To see them clearly, we'll look at a heart in which the right and left atrium have been removed, leaving just the two ventricles. Here's the right ventricle, seen from the right side, here's the left ventricle, seen from the front.

Going round to the back, this is the right ventricle, this is the left one. They're separated by the interventricular septum, which is here. We're looking forwards into the wide-open atrio-ventricular valves, the tricuspid on the right, the mitral on the left.

On the right side, blood passes downwards and forwards to fill the right ventricle in diastole, then in systole it passes upwards and to the left into the pulmonary trunk, passing through the pulmonary valve, which is here.

On the left, blood also passes downwards and forwards to fill the ventricle, then gets turned completely around in systole, passing upwards and backwards into the aorta. It passes through the aortic valve, which is out of sight, here.

[Read Less]
Enter an Access Code
Please take a moment to tell us about your experience with AclandAnatomy!
(1000 characters left)
Ease of use 1 = Not easy to use; 5 = Very easy to use
Video navigation 1 = Not easy to navigate; 5 = Very easy to navigate
Search results 1 = Not relevant; 5 = Very relevant
Value to your understanding of the subject 1 = Not valuable; 5 = Very valuable
Do you currently use another format of the Acland product (DVDs, streaming/institutional version, etc.)?
Tell us who you are.

May we contact you about your feedback?
reCAPTCHA verification required. Please check the box below and resubmit the form.
Captcha Validation Error. Please try again.
Your feedback has been successfully submitted.
We are unable to receive your feedback at this time. Please try again another time.
Please sign in to submit feedback.