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Did you know?

The longest a person has survived after a heart transplant is 24 years.

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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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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Lake 226 at the Experimental Lakes Area divided in half. Lake 226 at the Experimental Lakes Area divided in half.
Lions mating in Ngorongoro Conservation Area, Tanzania Lions mating in Ngorongoro Conservation Area, Tanzania
Pulmonary embolism. The purple shaded section shows the area of the lung that is dying from lack of ... Pulmonary embolism. The purple shaded section shows the area of the lung that is dying from lack of ...
The popliteal area. Avoid heavy pressure over the back of the knee joint. The popliteal area. Avoid heavy pressure over the back of the knee joint.
Stripping effleurage over the shoulder area. Use the thumbs sliding away from each other to apply a ... Stripping effleurage over the shoulder area. Use the thumbs sliding away from each other to apply a ...
Species-area curves Species-area curves
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

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