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Framed Pictures, Canvas Prints
Posters & Jigsaws since 2004
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April Gallery

Available as Framed Prints, Photos, Wall Art and Gift Items

Choose from 10 pictures in our April collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

F/col TEM of section through blood platelets Featured April Print

F/col TEM of section through blood platelets

False colour transmission electron micrograph of a section through activated blood platelets. Platelets (thrombocytes) are formed in the bone marrow, and circulate in blood in large numbers. In an unactivated state they are round/oval, whereas activated platelets develop pseudopodia, or extensions from the cell walls. Platelets contain cytoplasmic organelles such as mitochondria (small grey bodies), endoplasmic reticulum & granules (dark stain). Platelets function in 2 ways; they plug defects in the walls of capillaries & also are involved in clott- ing. They also release serotonin, a blood vessel constrictor substance. Mag: x22, 000 at 6x7cm size