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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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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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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Platelets and the process of blood clot formation. Platelets and the process of blood clot formation.
Black flies are blood-sucking insects who vector disease, like River Blindness, while feeding on hum Black flies are blood-sucking insects who vector disease, like River Blindness, while feeding on hum
The pH of human blood ranges from 7.35 to 7.45. The pH of human blood ranges from 7.35 to 7.45.
Blood Cell Blood Cell
Classification of blood pressure for adults age 18 and older Classification of blood pressure for adults age 18 and older
Easy way to remember blood flow through the heart cardio Easy way to remember blood flow through the heart cardio
Video: Control of ventilation rate by other brain centers (posts, hypothalamus & cerebral cortex)

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