[BITList] Electron microscope photography

Sat Oct 17 08:19:41 BST 2009

 amazing images!

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     *15 amazing body shots *captured using a scanning electron microscope.

  *Incredible details of 1 to 5nm (nanometer) in size can be detected*

 *1. Red Blood Cells*
 They look like little cinnamon candies here, but they're actually the 
most common type of blood cell in the human body - red blood cells 
(RBCs). These biconcave-shaped cells have the tall task of carrying 
oxygen to our entire body; *in women* there are about *4 to 5 million 
RBCs per micro liter (cubic millimeter) *of blood and about *5 to 6 
million in men*. People who live at higher altitudes have even more RBCs 
because of the low oxygen levels in their environment.   

 *2. Split End of Human Hair*
 Regular trimmings to your hair and good conditioner should help to 
prevent this unsightly picture of a split end of a human hair.   

 *3. Purkinje Neurons*
 Of the *100 billion neurons* in your brain. Purkinje (pronounced 
purr-kin-jee) neurons are some of the largest. Among other things, these 
cells are the masters of motor coordination in the cerebellar cortex. 
Toxic exposure such as alcohol and lithium, autoimmune diseases, genetic 
mutations including autism and neurodegenerative diseases can negatively 
affect human Purkinje cells.   

 *4. Hair Cell in the Ear*
 Here's what it looks like to see a close-up of human hair cell stereo 
cilia inside the ear. These detect mechanical movement in response to 
sound vibrations.

 *5. Blood Vessels Emerging from the Optic Nerve*
 In this image, stained retinal blood vessels are shown to emerge from 
the black-colored optic disc. The optic disc is a blind spot because no 
light receptor cells are present in this area of the retina where the 
optic nerve and retinal blood vessels leave the back of the eye.

 *6. Tongue with Taste Bud*
 This colour-enhanced image depicts a taste bud on the tongue. The human 
tongue has about *10,000 taste buds* that are involved with detecting 
salty, sour, bitter, sweet and savory taste perceptions.  Thai people 
have very few -- most killed by eating spicy food.

 *7. Tooth Plaque*
 Brush your teeth often because this is what the surface of a tooth with 
a form of Ã¢â‚¬Å“corn-on-the-cobÃ¢â‚¬? plaque looks like.

 *8. Blood Clot*
 Remember that picture of the nice, uniform shapes of red blood cells 
you just looked at? Well, here's what it looks like when those same 
cells get caught up in the sticky web of a blood clot. The cell in the 
middle is a white blood cell.

 *9. Alveoli in the Lung*
 This is what a colour-enhanced image of the inner surface of your lung 
looks like. The hollow cavities are alveoli; this is where gas exchange 
occurs with the blood.

 *10. Lung Cancer Cells*
 This image of warped lung cancer cells is in stark contrast to the 
healthy lung in the previous picture.

 *11. Villi of Small Intestine*
 Villi in the small intestine increase the surface area of the gut, 
which helps in the absorption of food. Look closely and you will see 
some food stuck in one of the crevices.

 *12. Human Egg with Coronal Cells*
 This image is of a purple, colour-enhanced human egg sitting on a pin. 
The egg is coated with the zona pellicuda, a glycoprotein that protects 
the egg but also helps to trap and bind sperm. Two coronal cells are 
attached to the zona pellicuda.

 *13. Sperm on the Surface of a Human Egg*
 Here's a close-up of a number of sperm trying to fertilize an egg.

 *14. Human Embryo and Sperm*
 It looks like the world at war, but it is actually five days after the 
fertilisation of an egg, with some remaining sperm cells still sticking 
around. This fluorescent image was captured using a confocal microscope. 
The embryo and sperm cell nuclei are stained purple while sperm tails 
are green. The blue areas are gap junctions, which form connections 
between the cells.

*15. Colored Image of a 6 day old Human Embryo Implanting itself onto 
the wall of the womb*

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