health test

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2 points

why do the artery's stretch

to push oxygen

to push the blood along

because they can

2 points

how thick is a capillary s wall?

three cells thick

two cells thick

one cell thick

one finger width

10 points

the heart and blood vessels make up what system?

circulatory

respiratory

2 points

lungs help you breath

True

False

2 points

what is a red blood cell?

a sphere without a nucleus

a disc that is round and flat with a nucleus

a disc that is round and flat without a nucleus

a sphere with a nucleus

2 points

what is in blood?

red blood cells

waste

platelets

all of the above

2 points

blood vessels around the heart become blocked with plaque

16 points

name 2 types of blood vessels.

artery

vein

capillary

2 points

what is plasma?

10.

2 points

is the artery like elastic

yes

11.

2 points

can a red blood cell change shape?

True

False

12.

2 points

is the heart important?

True

False

13.

2 points

White blood cells proliferate wildly causing anemia

14.

2 points

is the heart in the circulatory system?

True

False

15.

2 points

lungs are in the circulatory system?

True

False

16.

2 points

lack of iron in the blood low RBC count

17.

2 points

bleeders disease due to lack of fibrinogen in thrimbocytes

18.

2 points

is there oxygen in your blood

yes

maybe

19.

2 points

how is the heart important?

it isnt

it kills you

it pumps all of your blood around

there is no such thing as a heart

all of the above

none of the above

20.

2 points

What does your heart do?

pump blood around the body

do nothing

kill you

all of the above

21.

2 points

what do veins do?

they arent real

do nothing

carry blood

pump blood

22.

2 points

what is a platelet?

bits of cells broken off of larger cell

red blood cells but as plates

plates in your blood

23.

2 points

abnormal heart beat, caused by valve problems

24.

1 point

the circulatory system carries _____ blood and dissolved substances from places in the body.

25.

2 points

what do you call a collection of capillaries?

a capillary bed

a capillary wall

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