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Images Dated 3rd January 2003

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

Choose from 40 pictures in our Images Dated 3rd January 2003 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Sectioned teeth Featured 3 Jan 2003 Print

Sectioned teeth

Teeth. Polarised light micrograph of a sectionthrough molar teeth in the lower jaw. Molar teethare used for grinding up and chewing food. Thecrowns of these teeth have caps of enamel (greyband, upper centre). This is the hardest substancein the body, and prevents wearing of the tooth.The teeth are anchored in the gum by their roots(blue/green). Their pulp cavities (black, centreleft and right) contain nerves and blood vessels.This pulp is surrounded by dentine (many colours)which forms the bulk of the tooth. This is atissue similar to bone but harder.

© Tissuepix/Science Photo Library

Immunofluorescent LM of natural killer blood cells Featured 3 Jan 2003 Print

Immunofluorescent LM of natural killer blood cells

Natural killer cell. Immunofluorescent light micrograph of human Natural Killer (NK) cells. The nucleus of each cell is blue, with the cytoplasm proteins stained green, yellow and red. Natural killer cells are a type of white blood cell known as T-lymphocytes. As part of the body's immune response mechanism, NK cells have the ability to destroy virus-infected cells & tumour cells. On contact with the surface of a tumour cell, the NK cell recognizes certain proteins called antigens, which activate its cell-killing mechanism. Immunofluorescence uses antibodies to attach fluorescent dyes to specific molecules within cells. Magnification: x624 at 6x4.5cm size


Photograph of Charles Darwin in 1881, aged 72 Featured 3 Jan 2003 Print

Photograph of Charles Darwin in 1881, aged 72

Charles Darwin. Photograph of English naturalist Charles Robert Darwin (1809-1882) in 1881, aged 72. As a young man Darwin briefly studied medicine then trained in the clergy, but his interest was in natural history. In 1831 he set sail as naturalist on HMS Beagle, which was to provide the fieldwork for his famous book: Origin of Species (1859). His theory of natural selection suggested that natural variation in a species creates a wide range of individual traits, some more useful than others. Competition to survive provides a driving force for evolution in the form of natural selection. His theory fuelled bitter controversy. Darwin is buried in Westminster Abbey