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Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Characteristics of Muscle Fibers Characteristics of Muscle Fibers
The cardiac cycle and an ECG tracing. The cardiac cycle and an ECG tracing.
The distribution of the sarcoplasmic reticulum and tubules around myofibrils of skeletal muscle. The distribution of the sarcoplasmic reticulum and tubules around myofibrils of skeletal muscle.
Use fingertips to apply friction to muscle attachments along inferior length of the clavicle. Use fingertips to apply friction to muscle attachments along inferior length of the clavicle.
Eye movements with muscle and nerve coordination Eye movements with muscle and nerve coordination
Production of ATP in Skeletal Muscle Production of ATP in Skeletal Muscle
Video: Hormonal regulation of pregnancy - weeks 2 through 38

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