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Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Skin graft. Skin graft.
Human Visual System Human Visual System
Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ... Sign on methanol pump shows that methyl alcohol is a poison and can cause skin irritation and other ...
How to solve a linear system by the substitution method How to solve a linear system by the substitution method
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The Autonomic Nervous System The Autonomic Nervous System
Video: Cognitive development by Piaget (Preoperational stage or intelligence)

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