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Did you know?

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

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor. Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor.
Human immunodeficiency virus gains entry into helper T cells, uses the cell DNA to replicate, interf Human immunodeficiency virus gains entry into helper T cells, uses the cell DNA to replicate, interf
Plant Cell Plant Cell
The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ... The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ...
Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ... Flow data for a healthy donor (top panel) and a HIV positive patient. CD3 is a T-cell marker, CD4 is ...
Assembly of a к light-chain gene in a B cell Assembly of a к light-chain gene in a B cell
Video: The pH scale - Strong acids and Weak acids

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