« previous next »
« previous next »
 

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?

The familiar sounds of your heart are made by the heart's valves as they open and close.

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.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Eukaryotic cell structure Eukaryotic cell structure
Structure of the water molecule Structure of the water molecule
Structure of a bone. Structure of a bone.
Lymph node structure. Lymph node structure.
Structure of the mitochondrial ATP synthase complex Structure of the mitochondrial ATP synthase complex
Crystal structure of human topoisomerase I in complex with a 22-bp DNA duplex Crystal structure of human topoisomerase I in complex with a 22-bp DNA duplex
Video: Acid-base imbalances - compensation of respiratory acidosis and alkalosis

For a complete list of videos, visit our video library