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Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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The horizontal fraction bar was introduced by the Arabs.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Sickle cell anemia. The clinical manifestations of sickle cell anemia result from pathologic changes Sickle cell anemia. The clinical manifestations of sickle cell anemia result from pathologic changes
Human embryonic stem cells stained with Tra-1-60 (green) - a stem cell marker and nestin (red), a ne Human embryonic stem cells stained with Tra-1-60 (green) - a stem cell marker and nestin (red), a ne
Turning cell phones into basic research tools with apps Turning cell phones into basic research tools with apps
A color-enhanced scanning electron micrograph of a neuron cell body (grey) studded with terminal ... A color-enhanced scanning electron micrograph of a neuron cell body (grey) studded with terminal ...
Phonetic and Whole-Word Recognition Phonetic and Whole-Word Recognition
Activation and Clonal Selection of a Cytotoxic T Cell Activation and Clonal Selection of a Cytotoxic T Cell
Video: Phlebotomy

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