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Home > All Images > 2003 > March > 21 Mar 2003

Images Dated 21st March 2003

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

Choose from 49 pictures in our Images Dated 21st March 2003 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.


Cryptic katydid insect on a fern leaf Featured 21 Mar 2003 Print

Cryptic katydid insect on a fern leaf

Katydid. Macrophotograph of a cryptic katydid insect (family Tettigoniidae) on a fern leaf. The leaf green colour (cryptic colouration) of this katydid, and the plant-like spines on its body and legs, serve as an example of camouflage in nature. The katydid can hide very well amongst leaves and scrub, which helps it to avoid the attention of predators. Katydids are large grasshopper-like insects in which sound communication is well-developed. They mostly feed on plants. In tropical forests (such as this one in Ecuador) adaptations in camouflage are abundant. The name "katydid" is an imitation of the noise the insect makes

© DR MORLEY READ/SCIENCE PHOTO LIBRARY

Lungs, CT scans Featured 21 Mar 2003 Print

Lungs, CT scans

Lungs. Sequence of six coloured axial CT (computed tomography) scans through the upper chest of a 52- year-old woman. The front of the chest is at top, and the right of the body is at left. The sequence moves down through the body as it runs from left- right along top then bottom. The two lungs (dark blue) and their branching airways (bronchioles, light blue) are separated by the mediastinal area (centre). This contains the trachea (blue circle) that splits into the two lung bronchi (images 4- 6). Major blood vessels (orange, upper centre) lead to the top of the heart (seen in images 4-6). The bone (dark orange) of the spine (lower centre) and ribs (surrounding the lungs) is also seen

© PASIEKA/SCIENCE PHOTO LIBRARY

Spongy bone tissue Featured 21 Mar 2003 Print

Spongy bone tissue

Cancellous bone. False-colour scanning electron micrograph of trabeculae in cancellous (spongy) bone tissue. Bone tissue is divided into compact & cancellous. The latter fills the interior of bones & the cavities between the trabeculae are occupied by bone marrow. Trabeculae are thin & composed of irregular lamellae of bone with lacunae containing osteocytes. Some of these lacunae are visible as tiny orange holes at upper centre. Osteblasts are the cells responsible for bone formation. Once they cease activity & become embedded in bone matrix they are called osteocytes. Magnification: x40 at 6x7cm size. Magnification: x40 at 4x5 inch size

© Prof.P.Motta/Dept.Of Anatomy/University la Sapienza , Rome/Science Photo Library