When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
GENERAL PRINCIPLES OF CELL COMMUNICATION
The Types of Functions of the T Cells
Conduction and gas exchange structures and functions.
The Ear and Its Functions
Nutrients and Their Functions
The carotenoid lycopene, found in tomatoes and tomato products, functions as an antioxidant