Page 718 - The Veterinary Care of the Horse
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        Figure 16.1 The horse’s heart


        1    The tricuspid valve is positioned between the right atrium and the right ventricle.

        2    The mitral valve separates the left atrium and ventricle.

        The tricuspid and mitral valves are sometimes known as the right and left atrioventriular
        (AV) valves.

        3    The aortic valve is situated inside the aorta where it leaves the left ventricle.

        4    The pulmonary valve is located at the origin of the pulmonary artery where it leaves the
             right ventricle.
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