Respiratory System
Our respiratory system helps us..
Breathe
The major organ of the circulatory system
The heart
the major organ of the digestive system
The stomach
The major organ in the nervous system
The brain
This body system holds up your body, aids in movement, and protects organs inside you
Skeletal system
The major function of the respiratory system is to help us breathe in ____________ and breathe out _________
Oxygen and carbon dioxide
The major function of the circulatory system is to..
Pump oxygen-filled blood throughout the body
The major function of the digestive system
To break down food so nutrients can be absorbed to provide energy to the body
The nervous system controls
All other body systems
This system helps your body move and is attached to your bones
Muscular system
The major organ of the respiratory system
The lungs
This system brings _______________ to the cells
Oxygen
Digestion begins here
The mouth (saliva)
The brain is made of billions of nerve cells called ______________ that carry information through the nervous system
Neurons
Some muscles are ______________ muscles and you can choose when you want these muscles to move
Voluntary muscles
This muscle sits under the lungs and forces air in and out of the lungs
The diaphragm
Without the ____________________system, the circulatory system would not be able to get the oxygen that it needs to take to the cells in your body
The respiratory system
Most nutrients are absorbed through the lining of this 9-10 foot organ in the digestive system
The small intestine
The _____________ ____________ connects the parts of the central nervous system by sending signals between your brain and body parts
Spinal cord
Muscles that you cannot control are called ______________ muscles
Involuntary muscles
Name 5 parts of the respiratory system
Mouth, nose, trachea (windpipe), pharynx (throat), bronchial tubes, air sacs, diaphragm
Name three parts of this system
Heart, blood vessels, blood cells, veins, arteries
Name five primary organs of the digestive system
Stomach, mouth, esophagus, small intestine, liver, pancreas, large intestine
Name the parts of the nervous system
Brain, spinal cord, and nerves
Bones store _________________ for the body
Minerals