The muscular system helps animals move by contracting muscles. The excretory system, which includes the kidneys, ureters, bladder, and urethra, removes waste from the blood and stores and passes out urine. The nervous system is made up of the brain, spinal cord, nerves, and sense organs and controls body organs, coordinates muscle movement, and interprets information from the senses. The respiratory system provides oxygen to cells by breathing in oxygen through the nose into the lungs and breathing out carbon dioxide through the trachea and lungs.

1. HOW DO BODY WORK
TOGETHER TO CARRY OUT
LIFE FUNCTIONS?
Chapter 1: Lesson 5:continue

2. Muscular system
Helps animals move.

6. Removes wastes from the body.
Excretory
system

7. Kidney
(Removes wastes from the
blood using lots of tiny
filters)
Ureters
Bladder
(Stores urine)
Urethra
(Passes out urine when bladder is

8. Includes the brain, the spinal cord, nerves and
sense organs.

9. Brain
1) Controls body
organs.
2) Coordinates
muscle movement.
3) Interprets
information from
sense organs.
Spinal cord
Passes signals sent
to and from the brain.
Nerves

10. Provide oxygen to all the cells of the body.

11. Nose
We breathe in oxygen
and breathe out
carbon dioxide from it.
Trachea
(passage way)
Lungs
Gives oxygen to the
blood and takes the
carbon dioxide from the
bloodDiaphragm