2.2 what goes arond comes around

Question 1

what’s the pulmonary circulation?

Answer 1

the blood flow from the heart to the lungs and back to the heart

Question 2

what does the pulmonary circulation connect, by what?

Answer 2

connects the heart with the lungs by means of blood vessels which are called veins and arteries.

Question 3

what do veins do?

Answer 3

carry blood towards the heart

Question 4

what do arteries do?

Answer 4

carry blood away from the heart

Question 5

how does blood become oxygenated\oxygen rich?

Answer 5

your blood takes up oxygen from your lungs

Question 6

what’s the process happening when blood becomes oxygenated?

Answer 6

blood becomes oxygenated (takes up oxygen in the lungs)

your blood then transports the oxygen along your two pulmonary veins towards the heart

it enters the left atrium (the blood is now ready to transport the oxygen to your cells)

Question 7

what happenes when the oxygen is delieverd to the cells of your body?

Answer 7

your blood becomes oxygen-poor\deoxygentaed.

Question 8

what does the deoxygenated blood contain and what is it made by?

Answer 8

contains a lot of waist such as carbon dioxide. made by your cells.

Question 9

what happenes when the heart recieves the blood?

Answer 9

the right ventricke pumps it away to your lungs along your two pulmonary arteries.

now the carbon dioxide can leave your body in the air you breath out.

Question 10

what happenes at the same time?

the time the varbon dioxide is breathed out

Answer 10

your blood picks up new oxygen when you breath in. this freshly oxygenated blood enters the left atrium again.

for another round of circulation through your body.

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Question 11

where is oxygenated blood transfered to and by what?

Answer 11

all of your other cells, tissues and organs by the systemic circulation

Question 12

what does the circulatory system do?

except transfering oxygenated blood

Answer 12

transports waste substances from the cells back to your heart

Question 13

through what is oxygenated blood pumped away from the heart to the cells?

generally & mainely

Answer 13

arteries. the main artery that transports blood directly away from the heart is callled the aorta.

Question 14

how does the aorta “look” or “split” like?

Answer 14

it splits into smaller arteries

Question 15

what is deoxygenated blood transported from the cells towards the heart through?

and what are the main ones

Answer 15

veins. the two main veins that transport blood directly from the organs back into the heart are called superior vena cava and the inferior vena cava.

Question 16

where do the inferior vena cava and superior vena cava collect blood from?

Answer 16

smaller veins such as the liver vein and the renal veins

Question 17

what is the heart made up of?

Answer 17

heart muscle (or cardiac muscle) which consists of heart muscle cells

Question 18

what do the heart muscle cells need to survive and do they produce waste substances? what does it “cause” or “mean”?

Answer 18

they need oxygen and nutrients. and they do produce waste substances that have to be removed. Thus the blood has its own blood supply.

Question 19

what’s the blood flow to and from the cardiac tissues called?

Answer 19

the coronary circulation

Question 20

how is oxygen delieverd to cardiac tissues?

Answer 20

a small portion of oxygenated blood from the aorta flows into the coronary arteries to deliever oxygen to the cardiac tissues.

Question 21

is blood in tge coronary veins oxygenated or not? and where does it flow to?

Answer 21

it is deoxygenated. flows bacl into the pulmonary artery.