Does the lymphatic system have valves?

• Yes

• No

What do the lymphatic system valves do?

• Prevent the back flow of lymph

• Nothing

• Move the lymph

• Provide blood cells

What lymphatic organ stops germs entering the body through the mouth or the nose?

• Spleen

• Thymus

• Tonsils

• Bone marrow

What does red bone marrow contain?

• Plasma

• erythrocytes and leucocytes

• platelets and stem cells

• blood, stem cells white blood cells, or platelets.

What is the lymphatic system's main purpose?

• It’s main purpose is to defend the body by remove bacteria and foreign materials

• Carry oxygenated blood to the tissues

• It’s main purpose is to provide nutrients to the muscles

• Create bone marrow

What is lymph?

• Lymph is a clear to white fluid, derived from the spleen

• A mixture of blood and waste

• Lymph is a clear to white fluid, derived from blood plasma

• Bone marrow

Where do the lymphatic ducts drain into?

• Right and Left Subclavian Veins

• Internal carotid Subclavian Veins

• Lungs

• carotid veins

What does the spleen do?

• The spleen stores and makes blood

• The spleen stores and filters blood and makes bone marrow blood that protects you from infection.

• The spleen stores T&B cells

• The spleen stores and filters blood and makes white blood cells that protect you from infection.

What do Macrophage cells do?

• Macrophages will ignore foreign bodies

• Macrophages will recognise and engulf foreign bodies

• Attack cells

• Produce bone marrow

What is the main function of lymphocytes?

• Produce antibodies

• Attack bacteria