4.1 Anatomy of the Heart and Vessels Part 4

Question 1

What are the layers of the tunica media?

Answer 1

external elastic membrane
smooth muscle
internal elastic membrane

Question 2

What does the tunica intima contain?

Answer 2

subendothelial tissue and layer of endothelium

Question 3

What are capillary beds?

Answer 3

interconnected capillaries

Question 4

What is the function of capillary beds?

Answer 4

exchange of materials with the cells of the body

Question 5

What are small veins known as?

Answer 5

venules

Question 6

Where is the blood collected from the capillary beds?

Answer 6

venuels

Question 7

How many artery systems are there?

Answer 7

two; left and right

Question 8

Where do the artery systems arise from?

Answer 8

base of the aorta

Question 9

What are the functions of the artery systems?

Answer 9

supply oxygen and nutrients to the heart tissue

Question 10

Where does the left coronary artery run?

Answer 10

towards the left side of the heart

Question 11

What does the left coronary artery branch into?

Answer 11

anterior interventricular branch
circumflex branch

Question 12

What is the function of the anterior interventricular branch?

Answer 12

supplies blood to both ventricles

Question 13

What is the function of the circumflex branch?

Answer 13

supplies blood to the left atrium and left ventricle

Question 14

Where does the right coronary artery run?

Answer 14

towards the right side of the heart

Question 15

What does the right coronary artery branch into?

Answer 15

posterior interventricular artery
marginal artery

Question 16

What does the right coronary artery supply?

Answer 16

right atrium and right ventricle

Question 17

Where does the blood leave from the heart to the body?

Answer 17

aorta

Question 18

Where does the aortic arch turn?

Answer 18

posteriorly

Question 19

What does the aorta turn into?

Answer 19

descending aorta

Question 20

What does the descending aorta turn into? When?

Answer 20

abdominal aorta; below the diaphragm