Chapter 7 Body Systems

When a body or part of the body is sick and does not work properly.

Which one of these is not a type of exercise?

Which one of these is not a kind of blood vessel?

Most illnesses that people have are dangerous.

The organ system that breaks down food into nutrients that the body can use.

The organ system that helps support, protect, and move the body.

A flexible material that covers the ends of bones at most joints.

A very tiny thing or particle

A tube between the throat and the stomach.

The smallest unit of a living thing.

A school-age child needs this many hours of sleep a night.

Your skull protects your brain.