Lectures

Cardiovascular System – Anatomy of the Heart

by Joseph Alpert, MD
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    00:09 Hello! I am Joseph Alpert, Professor of Medicine at the University of Arizona in the United States and also the Editor-in-Chief of the American Journal of Medicine.

    00:19 I am going to be presenting a series of 14 lectures which are on “Introduction to Cardiology”.

    00:25 I hope none of you believe that you will be expert cardiologists at the end of listening to these 14, but I do believe that you will have a much greater understanding of cardiology.

    00:36 You will understand the various factors that lead to heart disease, you will understand how we make the diagnosis of heart disease and you will understand the various therapies that we have at our hands… in our hands, that we can use in order to help the patient with heart disease.

    00:56 So, let’s start with something very basic. Let’s start with the anatomy of the heart and the blood vessels. Now, many of you, of course, receive hearts when you receive letters from friends or close, intimate relations. At Valentine’s Day, we see the heart, of course, the… the heart shape. Actually, the heart doesn’t look anything like that.

    01:20 That’s just a symbol for the heart. In fact, what you see here in this little diagram is a little bit more what the heart looks like. The heart is conical in shape with a rounded point, not a sharp point and of course, it is a pump. It’s a muscle pump that keeps the circulation continuously going in a circle. So, what happens, of course, I think everybody knows is, the heart pumps the blood out full of oxygen and nutrients to the cells throughout the body and then waste products are given to the blood, the blood returns to the… to the lungs, a deep blue and is then re-oxygenated, gets oxygen again and pumped out to the body.

    02:01 There is a continuous circle going on of the circulation.

    02:05 Here is a diagram that shows you how the heart lies in the chest. Notice that it’s not directly in the center of the chest. In fact, it’s slightly to the left. In this view, of course, it looks like its to the right, but if you were standing behind this person where the heart bulges out, would be the left. And you can see four points are marked on this skeleton with… with the heart drawn behind it, behind the ribs, of course, and the breast bone which we call the sternum. You can see that there are four heart valves and the points that are… that are marked here are the places where we listen with our stethoscope when we want to hear that particular valve. So… and we are going to go over the names of the valves and where they are located, but you just, for introduction, you can see that they are the aortic valve, the pulmonic valve, the tricuspid valve and the mitral valve. Now, here is a little diagram of the circulation, you can see it’s made in two


    About the Lecture

    The lecture Cardiovascular System – Anatomy of the Heart by Joseph Alpert, MD is from the course Introduction to the Cardiac System.


    Author of lecture Cardiovascular System – Anatomy of the Heart

     Joseph Alpert, MD

    Joseph Alpert, MD


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