It’s National Vegetarian Week
B0007826 Credit Daniel J. Geduld, Wellcome Images
Lettuce leaf
Light micrograph showing the close up structure of a lettace leaf. Lettuce is a leaf vegetable that is a source of vitamin A and folic acid. It also contains Lactucarium (the milky fluid secreted in most forms of lettace). It is thought to have sedative and analgesic properties.
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It’s National Vegetarian Week
B0007830 Credit Daniel J. Geduld, Wellcome Images
Tomato skin
Light micrograph showing close up structure of tomato skin. Tomatoes have been reported to have a number of health benefits. They contain vitamin A, vitamin C, vitamin E and vitamin K as well as high levels of a number of carotenoids. Lycopene is a carotenoid that is found in high levels in the skin of the tomato fruit and is responsible for the red colouring; it is also an antioxidant and has been suggested to protect the skin from UV and sun damage.
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International Day for Biological Diversity 2012: Marine Biodiversity
B0007769 Credit Dr Steve Wilson, Wellcome Images
Cavefish embryo
Confocal micrograph of a blind cavefish embryo at around five days post-fertilisation viewed from the side (lateral view). The cavefish Mexican tetra (Astyanax mexicanus) has a seeing and a blind form; the latter lives in dark environments, and relies on other senses.
with an antibody that targets a calcium binding protein (calretinin) shown in green, which highlights different neuronal types and their processes in the nervous system. The blind cavefish has specially adapted traits that its sighted relation (dwelling near the surface) does not. These include a greater number of sensory receptors and taste buds along its body; these taste buds are also more efficient than the equivalent cells in the seeing cavefish.
The eyes are still present at this stage of development but they will degenerate naturally during the lifetime of the fish as they live in a dark environment where eyes are redundant. Adult cavefish are blind.
2011 Wellcome Image Award winner.
Confocal micrograph
Collection: Wellcome Images
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Can you guess what it is yet?
Scanning electron micrograph of inner surface of lung, showing close-up of alveoli, computer-coloured red/pink. That was last week’s mystery image.
Part Twelve: ?
The largest organ of the body. Easy!
Can you guess what it is yet?
Ruth Milne Harris, Wellcome Images
Image credit: Ivor Mason, UCL, Wellcome Images
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