« previous next »
« previous next »
 

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

The lymphatic system in humans. The lymphatic system in humans.
Relationship between blood and lymph capillaries. Relationship between blood and lymph capillaries.
Purpura, an inflammation of the blood vessels. Purpura, an inflammation of the blood vessels.
Lymph node structure. Lymph node structure.
The Circulatory and Lymphatic Systems Blood and lymph are fluids that circulate throughout the body The Circulatory and Lymphatic Systems Blood and lymph are fluids that circulate throughout the body
Xylem vessels Xylem vessels
Video: Double Stranded DNA Molecule Animation

For a complete list of videos, visit our video library