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Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

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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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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Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

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

(A) Normal spongy bone. (B) Spongy bone with osteoporosis, which is characterized by a loss of bone (A) Normal spongy bone. (B) Spongy bone with osteoporosis, which is characterized by a loss of bone
Parts of a muscle. Parts of a muscle.
anatomy of leg muscle anatomy of leg muscle
Characteristics of Muscle Fibers Characteristics of Muscle Fibers
Ischemic compression (i.e., direct pressure) to a trigger point in the trapezius muscle. Ischemic compression (i.e., direct pressure) to a trigger point in the trapezius muscle.
Role of calcium in muscle contraction Role of calcium in muscle contraction
Video: Muscular System Animation

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