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22 terms

SCIENCE: The Body

Chapter 1, Lesson 1-3
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How much of the air your breathe is oxygen
the nose
How does air first enter your body
respiratory system
What is the system that connects notes, lungs, and tubes called?
Trachea
What party of the body is divided into two bronchial tubes
carbon dioxide
Air that you exhale is filled with what gas
oxygen
Air that we breathe in is rich in what gas
air sacs
The exchange of of carbon dioxide for oxygen takes place in what part of the body
red blood cells
how is the oxygen we breath delivered to the cells in the body
diaphragm
What is the large muscle that contracts to bring air into the lungs
through the veins
After red blood cells relsease their oxygen, how do the red blood cells flow back to the heart
energy
How do cells repair damage and grow
carbon dioxide
What do cells produce when they use energy to release oxygen from sugar
oxygen and food
What do all living organisms need to stay alive
capillaries
What are the small blood vessels that blood cells travel through in a single file
nutrients
What does your disgestive system change the nourishing food you eat into
cell wastes that contain nitrogen
What is produced when cells break down nitrogen
crossing into the capillaries
How does waste leave the cells and enter the body
kidneys
What organ in your body releases salts and extra water
lungs
What part of your body releases carbon dioxide
Urine
What is produced slowly but constantly by the body and stored temporarily in the urinary bladder
breath
How does the body release excrete water on warm days
one million
About how many tiny tubes in the kidney filter waste from the blood