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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

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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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There are more nerve cells in one human brain than there are stars in the Milky Way.

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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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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.

Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function. Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function.
Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ... Steel-toed shoes are a worthwhile investment to help prevent foot injury due to falling objects. ...
If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ... If 0.40 mol of NaN3 reacts completely in the reaction shown below, then ________ L of N2 will ...
Patterns of tissue injury secondary to gunshot wounds. Patterns of tissue injury secondary to gunshot wounds.
A Diffuse Axonal Injury A Diffuse Axonal Injury
Reversible and nonreversible cell injury Reversible and nonreversible cell injury
Video: How Hemoglobin Picks Up and Delivers Oxygen

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