BIOD 152 MODULE 4
1. Anatomy of arteries and veins
Answer:
-lumen: opening
-tunica externa: helps anchor the vessel to surrounding structures
-tunica media: external elastic membrane, smooth muscle, & internal elastic mem-brane
-tunica intima: sub-endothelial tissue & endothelium
2. What supplies blood to the heart?
Answer: right and left coronary arteries
3. What are the 2 branches of the left coronary artery?
Answer:
-Anterior interventricular branch
-Circumflex branch
4. Which branch of the left coronary artery supplies the LA and LV?
Answer: circum-flex branch
5. What are the branches of the right coronary artery?
Answer:
-Marginal artery
-Posterior interventricular artery
6. Systemic blood flow order
Answer: Aorta, Aortic arch, descending aorta, thoracic aorta (above diaphragm), abdominal
aorta (below diaphragm), branches throughoutbody
7. Venus blood flow order
Answer: inferior vena cava (carrying deoxygenated blood fromlower body), superior vena
cava (carrying deoxygenated blood from upper body), returned to right atrium
8. What is the first blood vessel that branches off the aorta? What does itsupply?
Answer:
-Brachiocephalic trunk
-Right arm and neck
9. Circle of Willis (cerebral arterial circle)
Answer: Provides alternate circulation to thebrain in case the arteries become blocked
, 10. What are the arteries of the circle of willis?
Answer:
-2 vertebral arteries
-Basilar artery
-l&r posterior cerebral arteries
-posterior communicating arteries
-l&r internal carotid arteries
-common carotid arteries
-l&r middle cerebral arteries
-anterior cerebral arteries
-anterior communicating arteries
11. True or false: Blood is classified as a connective tissue.
Answer: True
12. What are the 2 main portions of blood?
Answer: plasma (90% water) and formedelements
13. What makes up the formed elements in blood?
Answer: red blood cells, white bloodcells, platelets
14. What is the difference between plasma and serum?
Answer: In serum, the clottingproteins have been removed. It is used in labs
15. What are main functions of plasma?
Answer:
-helps keep the pH of blood near 7.4
-transports large organic molecules
-aids in clotting
-maintains the blood's osmotic pressure bc of the presence of proteins
16. Osmotic pressure
Answer: net pressure in the blood that moves fluid from the tissuesinto the circulatory system
17. hydrostatic pressure
Answer: pushes fluid into the tissues by the pressure of bloodpumping from the heart
18. Why is the cardiovascular system a closed circulatory system?
Answer: the fluidcontents are pumped from the heart throughout the body and back to the
heart
19. What are some functions of the cardiovascular system?
1. Anatomy of arteries and veins
Answer:
-lumen: opening
-tunica externa: helps anchor the vessel to surrounding structures
-tunica media: external elastic membrane, smooth muscle, & internal elastic mem-brane
-tunica intima: sub-endothelial tissue & endothelium
2. What supplies blood to the heart?
Answer: right and left coronary arteries
3. What are the 2 branches of the left coronary artery?
Answer:
-Anterior interventricular branch
-Circumflex branch
4. Which branch of the left coronary artery supplies the LA and LV?
Answer: circum-flex branch
5. What are the branches of the right coronary artery?
Answer:
-Marginal artery
-Posterior interventricular artery
6. Systemic blood flow order
Answer: Aorta, Aortic arch, descending aorta, thoracic aorta (above diaphragm), abdominal
aorta (below diaphragm), branches throughoutbody
7. Venus blood flow order
Answer: inferior vena cava (carrying deoxygenated blood fromlower body), superior vena
cava (carrying deoxygenated blood from upper body), returned to right atrium
8. What is the first blood vessel that branches off the aorta? What does itsupply?
Answer:
-Brachiocephalic trunk
-Right arm and neck
9. Circle of Willis (cerebral arterial circle)
Answer: Provides alternate circulation to thebrain in case the arteries become blocked
, 10. What are the arteries of the circle of willis?
Answer:
-2 vertebral arteries
-Basilar artery
-l&r posterior cerebral arteries
-posterior communicating arteries
-l&r internal carotid arteries
-common carotid arteries
-l&r middle cerebral arteries
-anterior cerebral arteries
-anterior communicating arteries
11. True or false: Blood is classified as a connective tissue.
Answer: True
12. What are the 2 main portions of blood?
Answer: plasma (90% water) and formedelements
13. What makes up the formed elements in blood?
Answer: red blood cells, white bloodcells, platelets
14. What is the difference between plasma and serum?
Answer: In serum, the clottingproteins have been removed. It is used in labs
15. What are main functions of plasma?
Answer:
-helps keep the pH of blood near 7.4
-transports large organic molecules
-aids in clotting
-maintains the blood's osmotic pressure bc of the presence of proteins
16. Osmotic pressure
Answer: net pressure in the blood that moves fluid from the tissuesinto the circulatory system
17. hydrostatic pressure
Answer: pushes fluid into the tissues by the pressure of bloodpumping from the heart
18. Why is the cardiovascular system a closed circulatory system?
Answer: the fluidcontents are pumped from the heart throughout the body and back to the
heart
19. What are some functions of the cardiovascular system?
