Circulatory system - 2

Question 1

Diffusion in the circulatory system

Answer 1

• In the lungs, capillaries absorb oxygen from inhaled air into the bloodstream and release carbon dioxide for exhalation.
• in a process called diffusion, oxygen moves from the alveoli to the blood through the capillaries (tiny blood vessels) lining the alveolar walls.

Question 2

the blue, right side of the system deals with what type of blood?

Answer 2

deoxygenated blood, blood that lacks oxygen

Question 3

the left side (the red) deals with what type of blood?

Answer 3

oxygenated blood, blood full of oxygen

Question 4

deoxygenated blood goes through what type of circulation?

Answer 4

pulmonary circulation

Question 5

what is systemic circulation?

Answer 5

(the left side of the heart) carries oxygenated blood from the heart to the rest of the body

Question 6

Once the oxygenated blood enters the body, how does gas exchange occur in body cells?

Answer 6

the oxygenated blood inters the artery, travels through the arteriol, enters the capillary, exits it from the venule, which leads it to the vein, deoxygenated blood now leaves and goes to the heart

Question 7

Path of deoxygenated blood from body, through heart, to lungs.

Answer 7

Superior vena cava (upper body)/inferior vena cava (lower body)→ the right atrium →tricuspid valve → right ventricle → pulmonary valve → pulmonary trunk→ pulmonary artery → lungs

Question 8

path of oxygenated blood from lungs, through heart, to body.

Answer 8

lungs → pulmonary vein → left atrium → mitral valve → left ventricle → aortic valve → aorta → cells in body

Question 9

Diffusion in the circulatory system

Answer 9

• In the lungs, capillaries absorb oxygen from inhaled air into the bloodstream and release carbon dioxide for exhalation.
• in a process called diffusion, oxygen moves from the alveoli to the blood through the capillaries (tiny blood vessels) lining the alveolar walls.

Question 10

arteries carry what type of blood?

Answer 10

oxygenated blood away from the heart

Question 11

what type of blood do veins carry?

Answer 11

deoxygenated blood to the heart

Question 12

Gas exchange

Answer 12

becomes oxygenated when the capillaries pass through the alveoli (in the lungs) and reenters the heart via the pulmonary vein with oxygenated blood.

Question 13

what determines how much air lungs can intake?

Answer 13

the surface area of the alveoli

Question 14

Look at the drawing for anatomhy of the heart

Question 15

Path of Blood

Answer 15

1. upper and lower body (vena cava)
2. right atrium
3. right ventricle
4. pulmonary artery
5. LUNGS
6. pulmonary veins
7. left atrium
8. left ventricle
9. aorta
10. rest of the body

Question 16

arteries

Answer 16

large, thick walled, muscular, elastic blood vessels that carry oxygenated blood AWAY from th eheart
- smaller arteries are called arterioles and connect to the capillaries

Question 17

Capillaries

Answer 17

thin, small blood vessels that connect veins to arteries. They form a sense networl that connects supplies even cell with blood to allow for gas exchange

Question 18

Veins

Answer 18

large blood vessels with valves that carry deoxygenated blood back towards the heart
- smaller veins are called venules and connect to capillaries