What is the function of capillaries?

Capillaries contain small holes in their structure that allow oxygen and other nutrients to pass through into organs and tissues. Specific types of capillaries are determined by their functions, which affects their number and placement in the body. read more

Capillaries are very thin blood vessels that were first discovered in frog lungs in 1661. They bring nutrients and oxygen to tissues and remove waste products. In this lesson, you will learn more about their structure and function. read more

Capillaries function in a group, or a capillary bed, which is an interweaving network of capillaries. The more active a cell is the more capillaries that are needed to supply the proper blood flow and exchange of materials. These blood vessels are microscopic, but their presence is viewable at times. read more