
	3D Medical Animations Close This information is provided by an independent source. Merck & Co. does not endorse and is not responsible for the accuracy of the content, or for the practices or standards of non-Merck sources. This information provided is not intended to be a substitute for professional medical advice. A licensed healthcare professional should be consulted for diagnosis and treatment of any and all medical conditions. The manufacturer of a product generally has the most complete information about that product. How to use How to use The world's largest library of 3D medical animations developed and copyrighted by Blausen Medical Communications. The Human Atlas figures rotating model, labeled slides, and printable text in addition to animated videos. Shows a video of the selected health topic. Controls play, pause, and restart of the video. Shows a summary of the selected health topic. Controls to scroll the text. Shows a 3 D model of the video. Controls to rotate the model. Shows slides from the video. Controls to change slides.

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This information is provided by an independent source. Merck & Co., Inc. is not responsible for this content. Please discuss any and all treatment options with your healthcare professional. The manufacturer of a product generally has the most complete information about that product.

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erythrocyte (ә-rith�ro-sīt) one of the formed elements in the blood, constituting the great majority of the cells in the blood. A normal, mature erythrocyte is a tiny disk concave on both sides, without a nucleus, consisting mainly of hemoglobin. Erythrocyte formation (erythropoiesis) takes place in the red bone marrow in the adult, and in the liver, spleen, and bone marrow in the fetus. A major function of erythrocytes is the transporting of oxygen and carbon dioxide. Their oxygen-carrying ability is due to hemoglobin, which attracts and forms a loose connection with free oxygen (oxyhemoglobin); the presence of hemoglobin allows blood to absorb huge amounts of oxygen. Oxyhemoglobin is red, which gives oxygenated blood its color. Called also red cell or corpuscle and red blood cell or corpuscle.

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