BIOD 152 EXAM 4
1. pulmonary valve
Answer: leaving right ventricle and pulmonary trunk
2. aortic valve
Answer: leaving left ventricle into aorta
*stronger because of increased pressure from left ventricle
3. tricuspid valve
Answer: valve between the right atrium and the right ventricle
4. Mitral valve
Answer: valve between the left atrium and the left ventricle; bicuspid valve
5. Arteries
Answer: carry blood away from the heart
6. Veins
Answer: carry blood to the heart
7. Capillaries
Answer: Exchange of O2, CO2, and nutrients with tissues
8. describe arteries
Answer: Thick walled, muscular, flexible tubes that carry oxygenatedblood away from the
heart to the arterioles.
can expand and recoil - help heart pump blood to body
9. largest artery in the body
Answer: aorta
10. arterioles
Answer: small arteries
11. arterioles are controlled by
Answer: autonomic nervous system
12. contraction of arterioles
Answer: increased blood pressure
, 13. relaxation of arterioles
Answer: dilates, decreases blood pressure
14. what is responsible for peripheral resistance?
Answer: arterioles - it all depends onexternal and internal conditions of the body
15. describe veins
Answer: thinner walledno pulse
stretch with little to no recoil
contain valves that open towards heart less pressure from heart (why no pulse)
16. what stores the largest amount of blood?
Answer: veins
17. what does it mean when veins have compliance?
Answer: stretch with little recoil
18. opening in the center of a vessel is called the
Answer: lumen
19. 3 layers of veins and arteries
Answer: tunica intima, tunica media, tunica externa
20. tunica externa
Answer: outer layer of a blood vessel
anchors vessel to surrounding structures
21. tunica media
Answer: middle layer:external elastic membrane middle smooth muscle
inner elastic membrane
22. cardiovascular system is a
Answer: closed system
23. cardio =
Answer: heart
24. vascular =
Answer: vessels
25. name 3 functions of cardiovascular system
1. pulmonary valve
Answer: leaving right ventricle and pulmonary trunk
2. aortic valve
Answer: leaving left ventricle into aorta
*stronger because of increased pressure from left ventricle
3. tricuspid valve
Answer: valve between the right atrium and the right ventricle
4. Mitral valve
Answer: valve between the left atrium and the left ventricle; bicuspid valve
5. Arteries
Answer: carry blood away from the heart
6. Veins
Answer: carry blood to the heart
7. Capillaries
Answer: Exchange of O2, CO2, and nutrients with tissues
8. describe arteries
Answer: Thick walled, muscular, flexible tubes that carry oxygenatedblood away from the
heart to the arterioles.
can expand and recoil - help heart pump blood to body
9. largest artery in the body
Answer: aorta
10. arterioles
Answer: small arteries
11. arterioles are controlled by
Answer: autonomic nervous system
12. contraction of arterioles
Answer: increased blood pressure
, 13. relaxation of arterioles
Answer: dilates, decreases blood pressure
14. what is responsible for peripheral resistance?
Answer: arterioles - it all depends onexternal and internal conditions of the body
15. describe veins
Answer: thinner walledno pulse
stretch with little to no recoil
contain valves that open towards heart less pressure from heart (why no pulse)
16. what stores the largest amount of blood?
Answer: veins
17. what does it mean when veins have compliance?
Answer: stretch with little recoil
18. opening in the center of a vessel is called the
Answer: lumen
19. 3 layers of veins and arteries
Answer: tunica intima, tunica media, tunica externa
20. tunica externa
Answer: outer layer of a blood vessel
anchors vessel to surrounding structures
21. tunica media
Answer: middle layer:external elastic membrane middle smooth muscle
inner elastic membrane
22. cardiovascular system is a
Answer: closed system
23. cardio =
Answer: heart
24. vascular =
Answer: vessels
25. name 3 functions of cardiovascular system
