« previous next »
« previous next »
 

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

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?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
Relationships between direction of flow of blood and water or air in different vertebrates. Relationships between direction of flow of blood and water or air in different vertebrates.
Adrenal gland. Adrenal gland.
Goiter is an enlarged thyroid gland caused by an iodine deficiency Goiter is an enlarged thyroid gland caused by an iodine deficiency
Hormonal and nervous factors influencing blood pressure Hormonal and nervous factors influencing blood pressure
Red, fleshy fruits of hawthorn plants (Crataegus) are an important food for cedar waxwings (Bombycil Red, fleshy fruits of hawthorn plants (Crataegus) are an important food for cedar waxwings (Bombycil
Video: Renal Failure

For a complete list of videos, visit our video library