Shared Flashcard Set

Details

Standard Grade Science Credit health
Credit -Covers all LOs for the credit part of the test
23
Science
9th Grade
04/05/2011

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Cards

Term
What carries oxygen in the red blood cells?
Definition
Haemoglobin
Term
What are the cartilage rings doing?
Definition
Keep the windpipe open
Term
What is the mucus for in the windpipe?
Definition
Trap dirt and bacteria
Term
What are the cilia for in the windpipe?
Definition
Move the dirty mucus away from lungs
Term
What are the air sacs for?
Definition
They are surrounded by capillaries to allow gaseous exchange.
Term
What is the effect of car fumes on the body?
Definition
Bronchitis
Term
What is the effect of glue sniffing on the body?
Definition
Lung, heart and brain damage.
Term
Are arteries thick-walled or thin-walled?
Definition
Thick walled because the blood leaves the heart under pressure
Term
Which bits of the heart collect the blood?
Definition
The auricles or atria
Term
Which bit of the heart pump the blood to the lungs
Definition
The right ventricle
Term
Which bit of the heart pump the blood to the body
Definition
The left ventricle
Term
Which ventricle has a thicker wall?
Definition
The left ventricle because it needs to pump the blood around the whole body.
Term
What causes heart attacks?
Definition
When coronary arteries get blocked.
Term
What are valves?
Definition
Found in veins, make sure blood goes only one way
Term
Are capillaries thin or thick walled?
Definition
Thin walled to allow exchange of gas, food and waste with body cells.
Term
Are veins thin or thick walled?
Definition
Thin walled because the blood is not under pressure.
Term
What happens during recovery time?
Definition
Removal of accumulated waste products (carbon dioxide + lactic acid)
Term
What is plasma for?
Definition
Carrying dissolved food + carbon dioxide + food around the body
Term
What are red cells for?
Definition
Carry oxygen around the body.
Term
What are platelest for?
Definition
Seal cuts by clotting the blood.
Term
What is immunisations for?
Definition
Helps the body to produce antibodies before bacteria are present.
Term
Why do we die if the coronary artery is blocked?
Definition
No more oxygen gets to the heart which dies.
Term
What causes the blockage of arteries?
Definition
Blood clots or fat deposit
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