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level: Breathing and gas exchange

Questions and Answers List

Question	Answer
What is the name of the spongy organs that you use to breathe?	Lungs
What is the name of the muscle under your ribcage, that expands and contracts to help air in and out of your lungs?	Diaphram
What is the term used to describe air you breathe in?	Inhale
What is the term used to describe air you breathe out?	Exhale
What is the name of the pipe through which air travels after you breathe it in?	Trachea
What are the names of the two tubes that the trachea splits into before it enters the lungs?	Bronchi
What is the name of the smaller tubes that split from the bronchi throughout the lungs?	Bronchioles
What is the name of the small air sacs at the end of each bronchiole where gas exchange takes place?	Alveoli
Some of the oxygen inhaled into the lungs is absorbed into the blood stream for what purpose?	Respiration
What is the waste product of respiration that is exhaled when you breathe out?	Carbon Dioxide
What is the name of the process where gases pass into or out of the bloodstream?	Diffusion
What is the name of the small blood vessels that oxygen is passed into when you inhale?	Capillaries
What happens when you breathe in to increase the volume of your chest cavity?	Ribs move up and diaphram moves down
What happens when your breathe out to make the air rush out from your lungs?	Diaphram moves up and ribs move down