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Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

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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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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive
Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Rolling on the arm. Hands on opposite sides of the arm compress and roll the soft tissues and create ... Rolling on the arm. Hands on opposite sides of the arm compress and roll the soft tissues and create ...
Rocking the leg to create rotation in the hip joint. Rocking the leg to create rotation in the hip joint.
Brushing off to finish-front. Move to the front and place the person’s hands on his or her knees. ... Brushing off to finish-front. Move to the front and place the person’s hands on his or her knees. ...
Grand Funk Railroad - Bad Time Grand Funk Railroad - Bad Time
Video: Types of Shock (Part 2 of 2)

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