Body Systems
Major Organs
Staying Healthy
Cells and Organelles
100

This system includes the brain and controls your body using electrical signals.

Nervous system

100

This organ pumps blood through the body.

Heart

100

Getting enough of this at night helps your brain and body recharge.

Sleep

100

These are the basic building blocks of all living things.

Cells

200

This system acts like the ¨body guard,¨protecting you from germs.

Immune system

200

These organs help you breathe in oxygen.

Lungs

200

Drinking lots of this helps every body system function well.

Water

200

This organelle controls the cell like a ¨boss¨ or ¨brain.¨

Nucleus

300

This system includes your skin, hair, and nails.

Integumentary system

300

This organ acts like the body's ¨supercomputer,¨ controlling thoughts and movements.

Brain

300

Too much of this sweet substance can overload your metabolism.

Sugar

300

This organelle is where energy is made for the cell--often called the powerhouse of the cell.

Mitochondria (Mitochondrion)

400

This system moves blood around your body.

Circulatory system

400

This organ breaks down food into smaller pieces.

Stomach

400

This is the substance your body creates to bring sugar levels in your blood down.

Insulin

400

This cell part packages and ships proteins, similar to a post office.

Golgi body

500

This system sends chemical messages (hormones) through your blodd to control body functions.

Endocrine system.

500

This brain-like organ cleans your blood and helps break down harmful chemicals.

Liver

500

The set of chemical reactions in the body´s cells that change food into energy.

Metabolism

500

These tiny dots make proteins for the cell.

Ribosomes