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Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Scale used to measure pupil size in millimeters. Scale used to measure pupil size in millimeters.
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(A) Major leukocytes. (B) Enhanced color photograph from a scanning electron microscope of a ... (A) Major leukocytes. (B) Enhanced color photograph from a scanning electron microscope of a ...
Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl Checkpoints and proliferation decision points monitor the progress of the cell through the cell cycl
Video: Gastrin (protein digestion)

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