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Did you know?

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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

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The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Papilio machaon caterpillar showing the osmeterium, which emits unpleasant smells to ward off predat Papilio machaon caterpillar showing the osmeterium, which emits unpleasant smells to ward off predat
Normal Breath Sounds Normal Breath Sounds
Abnormal breath sounds Abnormal breath sounds
Corrosion on a battery cable could be an indication that the battery is either being overcharged ... Corrosion on a battery cable could be an indication that the battery is either being overcharged ...
A Breath-Actuated Inhaler A Breath-Actuated Inhaler
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Video: Physiology of Asthma

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