Lab Exam 2: Coronary circulation

Question 1

What is the primary function of coronary circulation?

Answer 1

To supply blood to the heart muscle.

Question 2

True or False: The coronary arteries are responsible for draining blood from the heart.

Answer 2

False

Question 3

Name the two main coronary arteries.

Answer 3

Left coronary artery and right coronary artery.

Question 4

What artery branches into the circumflex and left anterior descending arteries?

Answer 4

Left coronary artery.

Question 5

Fill in the blank: The right coronary artery primarily supplies blood to the __________ of the heart.

Answer 5

right atrium and right ventricle.

Question 6

Which artery is known for supplying the interventricular septum?

Answer 6

Left anterior descending artery.

Question 7

True or False: The coronary veins return deoxygenated blood directly to the lungs.

Answer 7

False

Question 8

What is the name of the main vein that collects blood from the coronary veins?

Answer 8

Coronary sinus.

Question 9

Which coronary artery is dominant in most individuals?

Answer 9

Right coronary artery.

Question 10

Multiple Choice: Which of the following arteries is a branch of the right coronary artery? A) Circumflex B) Right marginal C) Left anterior descending

Answer 10

B) Right marginal

Question 11

What is the purpose of the myocardial blood supply?

Answer 11

To deliver oxygen and nutrients to the heart muscle.

Question 12

Fill in the blank: The coronary arteries are located on the __________ of the heart.

Answer 12

surface

Question 13

True or False: The heart receives its blood supply during diastole.

Answer 13

True

Question 14

What is the role of the great cardiac vein?

Answer 14

To drain blood from the anterior part of the heart.

Question 15

What structure connects the left and right coronary arteries?

Answer 15

Anastomoses.

Question 16

Multiple Choice: Which of the following conditions can affect coronary circulation? A) Hypertension B) Diabetes C) Both A and B

Answer 16

C) Both A and B

Question 17

What is the significance of collateral circulation in coronary arteries?

Answer 17

It provides alternative pathways for blood flow if an artery is blocked.

Question 18

Fill in the blank: The __________ vein drains the right atrium.

Answer 18

small cardiac

Question 19

Short answer: What is angina pectoris?

Answer 19

Chest pain due to insufficient blood flow to the heart muscle.

Question 20

True or False: Coronary artery disease is characterized by the narrowing of coronary arteries.

Answer 20

True

Question 21

What is the primary risk factor for developing coronary artery disease?

Answer 21

Atherosclerosis.

Question 22

Multiple Choice: Which coronary artery supplies the left ventricle? A) Right coronary artery B) Left coronary artery C) Both A and B

Answer 22

B) Left coronary artery

Question 23

What is the function of the posterior descending artery?

Answer 23

To supply blood to the inferior part of the heart.

Question 24

Fill in the blank: The coronary arteries originate from the __________.

Answer 24

aorta

Question 25

True or False: The left coronary artery supplies more of the heart than the right coronary artery.

Answer 25

True

Question 26

What is the primary consequence of a blocked coronary artery?

Answer 26

Myocardial infarction (heart attack).

Question 27

Short answer: How can coronary circulation be assessed?

Answer 27

Through imaging techniques like angiography.

Question 28

What is the role of the coronary arteries during exercise?

Answer 28

To increase blood flow to meet the heart's higher oxygen demands.

Question 29

Fill in the blank: The branches of the __________ artery supply the lateral wall of the left ventricle.

Answer 29

circumflex

Question 30

True or False: Coronary veins are fewer in number than coronary arteries.

Answer 30

True

Question 31

What can lead to a coronary artery spasm?

Answer 31

Stress or drug use.