veins and arteries

Question 1

what do veins do ?

Answer 1

bring blood into heart

Question 2

what does the vena cava do ?

Answer 2

carries deoxygenated blood from body to right atrium

Question 3

what does the pulmonary vein do ?

Answer 3

carries oxygenated blood from the lungs tot he left atrium

Question 4

what do arteries do ?

Answer 4

bring blood away from heart

Question 5

what does the pulmonary artery do?

Answer 5

carries deoxygenated from the right ventricle to lungs

Question 6

what does the aorta do ?

Answer 6

caries oxygenated blood from the left ventricle to the rest of the body

Question 7

describe arteries muscle layer ?

Answer 7

thicker than veins so that constriction and dilation can occur to control volume of blood

Question 8

describe arteries elastic layer ?

Answer 8

thicker to help maintain blood pressure ,walls can stretch and recoil in response to heart beat

Question 9

describe arteries wall thickness?

Answer 9

thicker than veins to help prevent the vessels bursting due to high pressure

Question 10

do arteries have valves?

Answer 10

no

Question 11

atrioles have a muscle layer ?

Answer 11

thicker than arteries to help restrict blood flow into the capillaries

Question 12

arterioles elastic layer?

Answer 12

thinner than in arteries as the pressure is lower

Question 13

arterioles wall thickness?

Answer 13

thinner as pressure is slightly lower

Question 14

do arterioles have valves ?

Answer 14

no

Question 15

veins muscle layer?

Answer 15

relativley thin so it cannot control the blood flow

Question 16

veins elastic layer?

Answer 16

relativley thin as the pressure is much lower

Question 17

veins wall thickness?

Answer 17

thin as the pressure is much lower so the is low risk of bursting .the thinness means the vessels are easily flattened ,which helps the flow of blood up to the heart

Question 18

do veins have valves?

Answer 18

yes

Question 19

do capillaries have valves?

Answer 19

no

Question 20

capilliaries muscle layer?

Answer 20

no

Question 21

capillaries elastic layer ?

Answer 21

no

Question 22

capillaries wall thickness ?

Answer 22

one cell thick consisting of only a lining layer .This provides a short diffusion distance for exchanging materials between the blood and the cells.

Question 23

where does the renal artery carry blood from and to ?

Answer 23

aorta ->kidney

Question 24

where does the renal vein carry blood from and too ?

Answer 24

kidneys->vena cava