Share L4.3 – Respiration and Circulation: 6th Grade Science A.
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What is the main function of the respiratory system?
Stores blood
Brings oxygen into the body and removes carbon dioxide
Produces energy
Controls muscles
What gas do you breathe in?
Carbon dioxide
Helium
Oxygen
Nitrogen
What gas do you breathe out?
Hydrogen
Nitrogen
Carbon dioxide
Oxygen
What is the function of the lungs?
Control heartbeat
Store oxygen
Create energy
Exchange oxygen and carbon dioxide
Which system brings oxygen to cells?
Muscular system
Respiratory system
Skeletal system
Circulatory system
What is the function of the circulatory system?
Produces oxygen
Controls breathing
Carries oxygen and nutrients to cells
Stores air in lungs
What is the function of the heart?
Controls breathing rate
Creates oxygen
Stores red blood cells
Pumps blood throughout the body
What do arteries do?
Carry nutrients to the stomach
Carry blood to the heart
Carry air to lungs
Carry blood away from the heart
What do veins do?
Carry oxygen to the lungs
Carry blood to the heart
Carry blood away from the heart
Carry waste to the skin
What do red blood cells carry?
Water
Oxygen
Protein
Carbon dioxide
Which organ system removes carbon dioxide from the blood?
Muscular system
Nervous system
Respiratory system
Skeletal system
Which system controls breathing rate?
Muscular system
Nervous system
Respiratory system
Circulatory system
What organ sends signals to control breathing?
Brain
Lungs
Heart
Stomach
How do the respiratory and circulatory systems work together?
The lungs store red blood cells
The heart creates oxygen
The lungs add oxygen to blood that the heart pumps
The brain sends oxygen to lungs
What happens when carbon dioxide levels in blood increase?
Heart rate slows
Breathing rate increases
Breathing stops
Muscles relax
What tool do doctors use to listen to the heart?
Thermometer
Stethoscope
Microscope
Barometer
