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Did you know?

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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Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

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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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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Cellular changes associated with short-term and long-term memory in the sea slug. Cellular changes associated with short-term and long-term memory in the sea slug.
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Apply kneading and deep stroking to lower arm muscles. (A) Knead muscle bellies. (B) Thumb press ... Apply kneading and deep stroking to lower arm muscles. (A) Knead muscle bellies. (B) Thumb press ...
Video: Regulation of GFR: three methods, autoregulation & autoregulation via myogenic mechanism

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