« previous next »
« previous next »
 

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

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

Location of the Sinuses (Sphenoid Sinuses are Directly Behind Ethmoid Sinuses) Location of the Sinuses (Sphenoid Sinuses are Directly Behind Ethmoid Sinuses)
An aryballe vase or decanter made for carrying body oils clearly demonstrates that ancient Greeks we An aryballe vase or decanter made for carrying body oils clearly demonstrates that ancient Greeks we
A direct injection diesel engine injects the fuel directly into the combustion chamber. Many ... A direct injection diesel engine injects the fuel directly into the combustion chamber. Many ...
Photosynthesis: How Glucose Is Made During photosynthesis, the leaves of green plants absorb Photosynthesis: How Glucose Is Made During photosynthesis, the leaves of green plants absorb
Made over Made better Made over Made better
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 ...
Video: Action potentials - electrical characteristics and generation

For a complete list of videos, visit our video library