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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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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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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

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Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Phytochrome controls germination by responding to red/far red light signals. Phytochrome controls germination by responding to red/far red light signals.
Closed urinary drainage system. Urine being measured after it leaves patient’s body via catheter. Closed urinary drainage system. Urine being measured after it leaves patient’s body via catheter.
Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui
Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn
A mechanical returnless fuel system. The bypass regulator in the fuel tank controls fuel line ... A mechanical returnless fuel system. The bypass regulator in the fuel tank controls fuel line ...
Ripening black cherries (Prunus serotina) release ethylene that stimulates abscission of the fruits Ripening black cherries (Prunus serotina) release ethylene that stimulates abscission of the fruits
Video: Heart sounds

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