4.28 Defense

How many kinds of cells does the immune system consist of?

• 2

• 3

• 4

• 5

Which connects a muscle to the bone?

• skin

• tendon

• tissue

• ligament

Vaccinations provide protection against disease. A vaccine contains a substance that had been treated, so that it cannot cause a disease. However, when this substance is introduced into the body, it can stimulate the body's defense system. Which system does a vaccination stimulate?

• integumentary

• skeletal

• immune

• muscular

Foreign particles that can cause disease are called -

• memory cells

• antibodies

• pathogens

• T cells

What is the function of the immune system?

• circulate oxygen and nutrition to keep the body healthy

• gives the body movement to prevent it from danger

• covers the body to prevent bacteria from entering

• recognizes and destroys foreign substances that enter the body

Body systems work together to maintain homeostasis. For example, the immune system depends on another system to transport its cells to where they are needed. They system that works with the immune system to do this is the -

• integumentary system

• skeletomuscular system

• excretory system

• circulatory system

The immune system consists of -

• cells, tissues, organs, and skin

• cells, tissues, and organs

• cells and tissues

• tissues, organs, and skin

An autoimmune disease is one in which the immune system attacks the body's own cells. An example of an auto immune disease is rheumatoid arthritis, which attacks the joints of the body. Which system is affected by rheumatoid arthritis?

• skeletomuscular

• integumentary

• immune

• circulatory

Which is the largest organ in your body?

• kidney

• heart

• bones

• skin

Macrophages are part of the immune system's response to defend the body. What do macrophages do?

• absorb ultraviolet radiation

• make antibodies

• swallow up invaders

• prevent invaders from entering the body