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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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Video: Definitions of stroke volume, preload definition & Factors influencing stroke volume

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