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Home > Images Dated > 1991

Images Dated 1991

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

Choose from 62 pictures in our Images Dated 1991 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.


Bacteriophage T7 Electron Micrographtail Featured 1991 Print

Bacteriophage T7 Electron Micrographtail

An electron micrograph of the tail of a t7 bacteriophage, imaged at high resolution. This image was computer-processed using correlation averaging methods. In this method, multiple images are combined mathemat- ically with computers, creating a composite photo which is more accurate than any one photo. The 6 protruding fibrous proteins are responsible for recognizing vul- nerable sites on host cells, thus beginning the infection process. Bacteriophage t7 electron micrographtail

© CMSP/NIH

Color CT Scan Spinal Cord Featured 1991 Print

Color CT Scan Spinal Cord

This is one of a series of false-color cat scans taken at 20mm intervals through the chest of a 66 year old female patient. The paired lungs are black, the spinal cord is the red triangular object. A computed tomography (CT) scan uses X-rays to make detailed pictures of structures inside of the body

© Custom Medical Stock Photo

Aids Virus Budding From A T-Lymphocyte Featured 1991 Print

Aids Virus Budding From A T-Lymphocyte

The blue AIDS virus is in the process of budding from a t-lymphocyte. when it separates completely it will be a mature cell. AIDS (acquired immune deficiency syndrome) is an autoimmune disease which occurs after infection with the hiv virus. The hiv virus attacks cells with t4 antigens the helper t-lymphocytes being the most common victims. since these cells control the other cells involved in cellular immunity the AIDS patient is susceptible to opportunistic infection. AIDS virus budding from a t-lymphocyte

© Custom Medical Stock Photo