The Immune System

Front

The ________________ system protects your body from sickness and germs.

Back

immune

Front

___________________ are white blood cells that seek out and destroy organisms or substances that can cause disease.

Back

leukocytes

Front

_________________ are glands that work like filters to remove germs. They’re found in your neck, armpits, and other areas.

Back

lymph nodes

Front

Cells that chew up invading germs are called __________________.

Back

phagocytes

Front

___________________ are the cells that recognize invaders like germs.

Back

lymphocytes

Front

Leukocytes travel through the body through lymphatic _______________.

Back

vessels

Front

A foreign substance that invades your body is called an ____________.

Back

antigen

Front

When your body detects an antigen, __________________ are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.

Back

antibodies

Front

Humans are born with ________________ immunity.

Back

innate

Front

What is one of the best ways to avoid infections and help keep your immune system healthy?

Back

hand washing