« previous next »
« previous next »
 

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Digestive tract of a ruminant. Digestive tract of a ruminant.
Respiratory system of a bird. Respiratory system of a bird.
Cast of Isotelus rex, the largest known trilobite from the middle to upper Ordovician of North Ameri Cast of Isotelus rex, the largest known trilobite from the middle to upper Ordovician of North Ameri
Acute exacerbations of asthma can require management in the emergency department. The child is place Acute exacerbations of asthma can require management in the emergency department. The child is place
Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn Urinary tract infection. A UTI is characterized by fever, lumbar or abdominal pain, and pain or burn
Respiratory Mask Respiratory Mask
Video: Introduction to Genetics

For a complete list of videos, visit our video library