Erythrocytes
This scanning electron micrograph shows a few red blood cells (a.ka. erythrocytes) that have been magnified a little over 11,000 times. Being biconcave in shape allow RBCs to have a greater surface area and carry more oxygen through your body.
DVD Disc Close-up
Blood Clot Forming over a Wound
“Colour-enhanced scanning electron micrograph of a blood clot, with squamous tissue visible beneath. As a blood clot on a surface injury dries out it forms a protective scab over the wound allowing new skin to grow underneath.”
Ant
Front view
Back view:
“For all those people who have ever wondered what an ant’s bottom looks like close up…”
Monarch Butterfly Wing
Fly’s Eyes
Electron Micrograph of Drosophila Fly’s Eyes.
The structure of the eye, similar to many other insects, is termed a compound eye and is one of the most precise and ordered patterns in Biology.
Snow
Puff Ball 248x
One of those little balls of fluff that float around in spring. (248x magnification)
Smile on a Cell Phone
Copy Paper we use at Work
“The paper that we use in copying work has a rough tangle of fibers.”
Fat Cells
Electric Guitar String 80x
Human Sperm Fertilizing a Human Egg
“The sperm has fused to the egg cell membrane (oolemma) prior to becoming incorporated almost completely into the egg. The zona pellucida has been removed in this preparation. The surface of the egg is covered with dense microvilli. Once the sperm has fused to the egg cell membrane the “zona reaction” takes place which prevents other sperm from entering the egg.”
Split End of a Human Hair
“Colour-enhanced scanning electron microgaph of the split end of a human hair showing the outer cuticle layer surrounding the inner cortical layer.”
Surface of tongue
“Scanning electron micrograph of the surface of the tongue, computer-coloured red/pink.”
Sperm developing in the testis
“Sperm develop in the seminiferous tubules of the testis. The spermatids are embedded in the Sertoli cells with their tails projecting into the lumen of the tubule. These spermatids are in the advanced stages of maturation. One of the spermatids has two tails tails (top right, green).”
Sperm on the surface of a human egg
“Numerous sperm trying to to fertilise a human egg. They are trying to find their way through the zona pellucida, the membrane that surrounds and protects the egg.”
Close-up of midge eye
Close-up of part of midge head
Pubic louse
Head of pubic louse
Claws of pubic louse
Stinging hairs on a nettle leaf
“The large stinging hairs are hollow tubes with walls of silica making them into tiny glass needles. The bulb at the base of each hair contains the stinging liquid that includes formic acid, histamine, acetylcholine and 5- hydroxytryptamine (serotonin). The tips of the glassy hairs are very easily broken when brushed, leaving a sharp point, which easily pierces the skin to deliver the sting.”
Comparative thickness of human hair
“This image shows the difference in thickness of human hair between different ethnic groups. The strand of hair on the left is that of a Caucasian blonde female. The hair on the right is from an Asian male. Hair is normally comprised of three layers, the inner medulla, the cortex and the cuticle. The cuticle is the outermost layer and is comprised of numberous overlapping cells or scales. The cortex makes up the majority of the hair thickness. Interestingly, the inner medulla is not present in blond hair.”
Tooth
“Low power scanning electron microscope image of tooth surface, computer-coloured yellow on blue background.”
Nanowire
“Micrograph of a nanowire curled into a loop in front of a strand of human hair. The nanowires can be as slender as 50 nanometers in width, about one-thousandth the width of a hair. “The nanowires could be used, in the near future, to link tiny components into extremely small circuits.
Shark skin
“An electron micrograph reveals sharkskin’s secret to speed: tooth-like scales called dermal denticles. Water “races through the microgrooves without tumbling,” says shark researcher George Burgess, reducing friction. “It’s like a fast-moving river current versus the gurgling turbulence of a shallow stream.” The scales also discourage barnacles and algae from glomming on—an inspiration for synthetic coatings that may soon be applied to Navy ship hulls to reduce such biofouling.” . They also give the shark’s skin the feel of sandpaper.
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