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A Section approximately at Right Angles to the Long Axis of the Heart, exposing the Four Valves which lie very nearly in the Same Plane.

The semilunar valve which guards the aperture of the pulmonary artery is the nearest to the breast-bone.

Author

The Body at Work
by Alexander Hill
Published 1908
Available from gutenberg.org

Posted on

Tuesday 1 September 2020

Dimensions

900*650

Keywords

human

Albums

• Natural History / Mammals

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894

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