Blood and Lymphatic System

The Blood

Blood is made out of four basic parts

White Blood Cells

Red Blood Cells

Platelets

Plasma

contains hemoglobin and carries oxygen around the body

specialized cells that destroy invading bacteria & viruses

seal broken blood vessels and form blood clots

liquid part of blood that carries material in solution.

The Lymphatic System

Lymph Nodes

Feeding Cells

... and Back Again

In the capillary, the plasma will leave the vessel and transport the dissolved nutrients to the body cells. At this point, it changes from plasma to lymph.

White Blood Cells can squeeze out of the capillaries and travel with the lymph.

Lymph nodes filter the lymph, mapping bacteria and white blood cells together.

After filtering by the lymph nodes, the lymph is returned to the blood in the veins, where it will repeat the plasma/lymph cycle again.