Veins contain _________________ to prevent the backflow of blood.

Name the two types of white blood cell

Lymph nodes are small clusters of lymphatic tissue found throughout the lymphatic system. Name two body parts where lymph nodes can be found.

It connects with the blood system near to the heart, where lymph fluid is returned to the blood plasma. True or false

This vessel is tiny and so narrow that blood cells can only go through in single-file.

Name two substances that leak out of the capillaries?

State a function of phagocytes

.How thick are capillaries?

The lymphatic system is formed from a series of tubes which flow from tissues back to the heart. True or false?

As arteries branch out they become increasingly smaller. The smaller portion of an artery is referred to as a (an)...

A pulse can be felt in the

This redirection of blood flow is caused by the use of a vascular __________________

Blood cell consist of ( all 4 components)