functions of the cardiovascular system

Question 1

what are the vital functions of the cardiovascular system

Answer 1

transporting nutrients, hormones, and wastes

Question 2

how many well- integrate circulatory systems are there

Answer 2

2

Question 3

what type of system is the double-loop system

Answer 3

closed circulatory system

Question 4

what type of walled arteries does the closed circulatory system consist of

Answer 4

thick walled arteries

Question 5

what do the thick walled arteries do in the closed circulatory system

Answer 5

transport blood away from heart

Question 6

what do the thin walled veins do in the closed circulatory system

Answer 6

transport blood to heart and capillaries

Question 7

what are the capillaries made of

Answer 7

single layer of endothelium

Question 8

what do the capillaries do

Answer 8

connects arteries to veins in tissues

Question 9

what does the open lymphatic system circulate and filters

Answer 9

interstitial fluid between cells and eventually drains into the the circulatory system

Question 10

what does the closed double loop system transport

Answer 10

blood and hormones

Question 11

what are the 2 parts of the closed double loop system

Answer 11

pulmonary and systemic

Question 12

what type of blood does the pulmonary loop carry

Answer 12

carries deoxygenated blood

Question 13

where does the pulmonary loop carry deoxygenated blood from and to

Answer 13

from right ventricle of the heart to the lungs

Question 14

what happens after deoxygenated blood goes from the right ventricle of the heart to the lungs

Answer 14

it is oxygenated and returns the oxygenated blood to the left atrium

Question 15

what type of blood does the systemic loop carry and where does it go to and from

Answer 15

oxygenated blood from the left ventricle to the body

Question 16

what type of blood does the systemic loop return and where does it return it to

Answer 16

deoxygenated blood to the right atrium

Question 17

how many cycles of contractions does the heart undergoes

Answer 17

2

Question 18

what are the 2 contractions of the heart

Answer 18

systole and diastole

Question 19

what does systole contraction indicate

Answer 19

contraction of heart muscles

Question 20

what does diastole contraction indicate

Answer 20

relaxation of heart muscles

Question 21

in the heart cycle what does ventricular systole mean

Answer 21

ventricles contract

Question 22

in the heart cycle what does ventricular systole cause

Answer 22

atrioventricular valves — mitral and tricuspid valves to close

Question 23

what sound occurs when the atrioventricular valves close

Answer 23

makes a “lub” sound

Question 24

how are empty ventricles filled

Answer 24

blood pushed out during atrial systole

Question 25

at the same time, what also happens when the atrioventricular valves close

Answer 25

semilunar valves in the aorta and pulmonary trunk close

Question 26

what does the closing of the semilunar valves prevent

Answer 26

prevents blood from falling back into the ventricles

Question 27

what sound occurs when the semilunar valves close

Answer 27

“dub sound”

Question 28

what sound does the closing of both the atrioventricular and semilunar valves complete

Answer 28

lub/dub sound of the heart

Question 29

what is the contraction of the closing of the atrioventricular and semilunar valves controlled by

Answer 29

pacemaker

Question 30

what is the pacemaker called

Answer 30

sinoatrial node

Question 31

what does the pacemaker “sinoatrial node” do

Answer 31

sends out electrical signals

Question 32

what does the thick walls of the arteries withstand

Answer 32

to withstand pressure of blood pumped by the heart

Question 33

what do veins have thinner walls of

Answer 33

muscle layer and large lumen