Biconcave Collection

Red blood cells, SEM
Red blood cells, coloured scanning electron micrograph (SEM). Red blood cells (erythrocytes) are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, SEM
Red blood cells. Coloured scanning electron micrograph (SEM) of red blood cells (erythrocytes). Red blood cells are biconcave, disc-shaped cells that transport oxygen from the lungs to body cells

Red blood cells, computer artwork
Red blood cells. Computer artwork of human red blood cells (erythrocytes) in a blood vessel. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells. Computer artwork of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells and platelets, SEM
Red blood cells and platelets. Coloured scanning electron micrograph (SEM) of human erythrocytes (red blood cells) and a platelet aggregate (orange)

Red blood cells, light micrograph C016 / 3035
Red blood cells. Differential interference contrast (DIC) micrograph of red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cell, SEM
Red blood cell, coloured scanning electron micrograph (SEM). Red blood cells (erythrocytes) are carriers of oxygen and carbon dioxide

Cardiac muscle and capillary, TEM
Cardiac muscle. Coloured transmission electron micrograph (TEM) of cardiac muscle fibrils (purple)from a healthy heart. Mitochondria (green) supply the muscle cells with energy

Refraction, artwork C017 / 7064
This image may not be used in educational posters Refraction. Computer artwork showing light beams passing through a biconcave, or diverging, lens

Red blood cells, SEM C015 / 8789
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8792
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8794
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8796
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8790
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8793
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8795
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8787
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8791
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, SEM C015 / 8788
Red blood cells. Coloured scanning electron micrograph (SEM) of human red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Red blood cells, artwork C016 / 8542
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8547
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8543
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8548
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8546
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 8544
Red blood cells in a blood vessel, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red and white blood cells, artwork C016 / 4629
Red and white blood cells, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red and white blood cells, artwork C016 / 4630
Red and white blood cells, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic

Red blood cells, artwork C016 / 4627
Red blood cells, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels

Red blood cells, artwork C016 / 4626
Red blood cells, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels

Red blood cell, artwork C016 / 4622
Red blood cell, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels

Red blood cell, artwork C016 / 4623
Red blood cell, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels

Red blood cell, artwork C016 / 4624
Red blood cell, computer artwork. Red blood cells are biconcave, giving them a large surface area for gas exchange, and highly elastic, enabling them to pass through narrow capillary vessels

Red blood cells, light micrograph C016 / 3036
Red blood cells. Differential interference contrast (DIC) micrograph of red blood cells (erythrocytes). Red blood cells are biconcave, giving them a large surface area for gas exchange

Coronary artery, SEM
Coronary artery. Coloured scanning electron micrograph (SEM) of an artery in cardiac (heart) muscle. Red blood cells (erythrocytes) are seen within the vessel

Red blood cells and molecules, artwork
Red blood cells and drug molecules, computer artwork. Red blood cells (erythrocytes) are responsible for supplying tissues with oxygen and are the most abundant type of cell in the blood

Lung infection. Coloured chest X-ray of a patient with sickle cell disease (SCD), an inherited blood disorder. SCD has many symptoms including pulmonary complications

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"Biconcave: Unveiling the Intricate World of Red Blood Cells" Step into the microscopic realm and witness the mesmerizing beauty red blood cells through various imaging techniques. In this captivating journey, we explore their unique structure and vital role in our circulatory system. Using Scanning Electron Microscopy (SEM), we delve deep into the intricate details of these remarkable cells. The high-resolution images reveal their distinctive biconcave shape, resembling a flattened disc with concave surfaces on both sides. This specialized morphology allows for increased surface area, facilitating efficient oxygen and carbon dioxide exchange within our bodies. Through computer artwork, we are transported to a virtual world where vibrant red blood cells come alive. Their dynamic nature is showcased as they navigate through narrow capillaries, delivering life-sustaining oxygen to every tissue and organ. In another SEM image, red blood cells harmoniously coexist with platelets - crucial components responsible for clotting - emphasizing their collaborative effort in maintaining our overall health. The magnificence continues as SEM captures an array of different blood cell types. Each one possesses its own distinct characteristics that contribute to our well-being. From white blood cells defending against infections to platelets preventing excessive bleeding, this diverse community showcases the complexity of our bloodstream. A light micrograph provides a closer look at individual red blood cells under C016 / 3035 staining technique. The vivid hues highlight their cellular structures and reinforce their essential function in transporting oxygen throughout our body's tissues. Returning to SEM imagery once more, we zoom in on a single red blood cell suspended in isolation. Its delicate membrane texture becomes apparent as it stands as a testament to the intricacy hidden within even the smallest units of life. Expanding beyond just red blood cells, Transmission Electron Microscopy (TEM) reveals an awe-inspiring sight – cardiac muscle fibers intertwined with tiny capillaries that nourish them. This intricate network ensures the continuous pumping of our heart, sustaining life itself.