Skeletal

Muscular

Circulatory

Respiratory

Nervous

Endocrine

Digestive

Reproductive

Bones hold the rest of our body up and allow us to move.

Almost half the body’s weight is muscle.

Your heart is the size of your fist.

This system deals with breathing.

The brain is at the center of the nervous system.

This is a collection of glands that produce hormones.

This system breaks down the foods we eat.

Parts of this system allow a person to reproduce or have a child.

It protects important organs such as the brain, heart, and lungs.

Muscles allow us to move.

Blood carries nutrients and oxygen to all your organs and carries away wastes.

Air goes through your mouth and nose, down the trachea, and into your lungs.

The spinal cord is a thick bundle of nerves.

Hormones regulate metabolism, growth, and sexual development.

The main part is the digestive tract.

The male system enables a man to fertilize the female’s eggs with his sperm.

Babies have about 350 bones, and adults have about 206 bones.

There are more than 640 muscles in your body.

Blood travels away from the heart in arteries and back to your heart in veins.

The diaphragm controls the breathing process.

This bundle of nerves runs down the center of the spine.

Glands release these hormones directly into the bloodstream.

It’s made up of the mouth, esophagus, stomach, pancreas, gall bladder, liver, intestines, and rectum.

The parts of the male systems are the penis, scrotum, and prostate gland.

Bones join together to form joints.

Muscles can be voluntary or involuntary

There are 2 pumps in your heart and each pumps has two chambers. 

These nerves allow the brain to communicate with all parts of the body.

The hormones are transported to organs and tissues.

The main female parts are the vagina, uterus, ovaries, fallopian tubes, and breasts.