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A Section approximately at Right Angles to the Long Axis of the Heart

A Section approximately at Right Angles to the Long Axis of the Heart.jpg Manometer for measuring Blood-PressureThumbnailsThe Heart cut in the Plane of its Long Axis, and the Vessels which open into and out of itManometer for measuring Blood-PressureThumbnailsThe Heart cut in the Plane of its Long Axis, and the Vessels which open into and out of itManometer for measuring Blood-PressureThumbnailsThe Heart cut in the Plane of its Long Axis, and the Vessels which open into and out of itManometer for measuring Blood-PressureThumbnailsThe Heart cut in the Plane of its Long Axis, and the Vessels which open into and out of itManometer for measuring Blood-PressureThumbnailsThe Heart cut in the Plane of its Long Axis, and the Vessels which open into and out of it

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.