Lymphatic system

What Does the Lymphatic System Do?

• Collect extra ​ (a)   fluid from body tissues and return it to the ​ (b)   .

• This is important because water, proteins, and other substances are always ​ (c)   out of tiny blood ​ (d)   into the surrounding body tissues.

• lymph
• blood
• leaking
• capillaries

If the lymphatic system didn't drain the excess fluid, what would happen

• Body tissues would swell up

• Body tissues would shrink due to lack of fluid

• The excretory system would fail

The lymphatic system is a network of very small ​ (a)   (or vessels) that ​ (b)   lymph fluid from all over the body.

The heart, lungs, intestines, liver, and ​ (c)   also contain lymphatic tissue.

• tubes
• drain
• skin

Which is NOT one of the major parts of the lymph system

• Bone marrow

• Spleen

• Tonsils

• Heart

Match the following

• filter out foreign agents that cause inf

• Lymph nodes

• Produces blood cells

• Thymus gland

• filters blood of cellular waste

• Bone marrow

• Fight infections with White blood cells

• Tonsils

• Trains T cells for immune system

• Spleen

Lymph nodes are in clusters in the neck, ​ (a)   , and groin area. They're also found along the lymphatic pathways in the ​ (b)   , abdomen, and pelvis, where they ​ (c)   the blood.

• armpit
• chest
• filter

The lymphatic system helps defend the body against ​ (a)   (viruses, bacteria, and fungi) that can cause illnesses.

Inside the lymph nodes, lymphocytes called ​ (b)   and B-cells help the body fight ​ (c)   .

B cells make​ (d)   — special proteins that stop infections from spreading by ​ (e)   disease-causing germs and destroying them.

• germs
• T-cells
• infection
• antibodies
• trapping