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S2 Sci Healthy Bodies
flashcards
22
Biology
Not Applicable
09/12/2013

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Cards

Term
What do we need to survive?
Definition
energy and nutrients from food, water, warmth, get rid of waste, protection from disease, senses
Term
What happens in the lungs?
Definition
oxygen from the air moves into the blood and carbon dioxide moves from the blood to the air.
Term
What is used to test for carbon dioxide?
Definition
lime water (turns cloudy)
Term
Where are the lungs found?
Definition
inside our ribcage on either side of the heart.
Term
What is the name of the tube that takes air in and out of the lungs?
Definition
the windpipe
Term
Name the two tubes that branch out from the windpipe
Definition
bronchi
Term
Name the smaller tubes that branch out from the bronchi
Definition
bronchioles
Term
What is at the end of each bronchiole?
Definition
air sacs
Term
Name the muscles that cause the breathing movements
Definition
muscles between the ribs and the diaphragm
Term
How do we breathe IN?
Definition
the rib cage moves up and out & the diaphragm moves down
Term
How do we breathe OUT?
Definition
rib cage moves down and in & the diaphragm moves up
Term
What keeps the lungs clean ?
Definition
mucus and tiny hairs in the air passages
Term
What does the mucus in the lungs do?
Definition
the mucus traps dirt and germs which may be in the inhaled air
Term
What do the tiny hairs in the lungs do?
Definition
sweep the mucus up to your throat to clean the lungs
Term
Name three harmful chemicals in cigarette smoke
Definition
nicotine
Term
How does the nicotine in cigarette smoke harm the lungs?
Definition
paralyses the tiny hairs preventing them from cleaning the lungs.
Term
How is the carbon monoxide in cigarette smoke harmful?
Definition
it is a poisonous gas found in cigarette smoke. This gas reduces the ability of the blood to carry oxygen.
Term
How is the tar in cigarette smoke harmful?
Definition
The tar in cigarette smoke sticks to the airways and increases the risk of cancer.
Term
What is the vital capacity of the lungs?
Definition
the maximum volume of air we can breathe out after we have taken a deep breath.
Term
What is the tidal volume of the lungs?
Definition
the volume of air breathed in and out in a normal breath.
Term
What is the peak flow of the lungs?
Definition
a measure of the maximum rate at which air can be forced from the lungs
Term
Name four factors that can affect the lung measurements.
Definition
age, gender,size fitness
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