Cardiovascular 2

Question 1

Renin-angiotensin mechanism increases the reabsorption of sodium and water to restore blood volume and increase blood pressure

Answer 1

True

Question 2

Most influential factor to blood flow resistance

Answer 2

Diameter of blood vessels

Question 3

What determines cardiac output

Answer 3

Heart Rate

Question 4

Which of the following factors converts fibrinogen into fibrin in the final step of coagulation

Answer 4

Thrombin

Question 5

Conduction system of the heart in correct order

Answer 5

Sinoatrial node
Atrioventricular node
AV bundle of his
Right and left bundle brunches
Purkinje fibers

Question 6

What is the correct Equation for cardiac output?

Answer 6

Cardiac output equals stroke volume times heart rate

Question 7

Atrioventricular valves close

Answer 7

Systole

Question 8

Intra ventricular pressure increases

Answer 8

Systole

Question 9

Blood rushes into great arteries

Answer 9

Systole

Question 10

Semilunar valves close

Answer 10

Diastole

Question 11

Difference in pressure forces blood flow

Answer 11

True

Question 12

HR and strength of contraction are controlled by the cardiovascular centre located in the

Answer 12

Brainstem

Question 13

Which of the following occur during ventricular diastole

Answer 13

The artrioventricular valves open

Question 14

Clot retraction

Answer 14

Compacts the blood clot drawing torn edges of the damaged vessel closer together

Question 15

Blood flows through vessels due to

Answer 15

Pressure gradient

Question 16

Autoregulation affects the

Answer 16

Precapillary sphincters
Arterioles

Question 17

Which of the following has influenced in the resistance to blood flow in adults

Answer 17

Blood vessel diameter

Question 18

Which of the following breaks down fibrin/clots

Answer 18

Plasmin

Question 19

Intrinsic

Answer 19

Pathway is activated by platelets adhering to exposed collagen fibers in the blood vessel lining

Question 20

Extrinsic

Answer 20

Pathway is initiated by damaged cells outside of the blood vessel

Question 21

Common

Answer 21

Pathway begins with activation of prothrombin activator

Question 22

Which of the following is referred to as the pacemaker of the heart

Answer 22

Sinoatrial node (SA)

Question 23

Clotting factors are always available

Answer 23

True

Question 24

Renin-angiotensin mechanism leads to the formation of angiotensin II stimulates

Answer 24

Release of aldosterone
Vasoconstriction
Release of ADH

Question 25

Which of the following facilitate venous blood flow back to the heart

Answer 25

Sympathetic Action Skeletal muscle pumps Respiratory pumps

Question 26

Which of the following occurs during ventricular systole

Answer 26

Semi-lunar valves are forced open by increasing intraventricular pressure

Question 27

Hemorrhage (significant blood loss) would stimulate

Answer 27

An increase in sympathetic activity Activation of renin-angiotensin mechanism

Question 28

Which of the following correctly depicts the relationship between cardiac output (CO), blood pressure (BP) and vascular resistance (TPR)?

Answer 28

BP = CO X TPR

Question 29

The semilunar (SL) valves open due to

Answer 29

Pressure in the ventricles exceeding pressure in the aorta and pulmonary trunk

Question 30

Which of the following factors affect stroke volume (SV)?

Answer 30

Great artery diameter Sympathetic innervation Blood Volume

Question 31

Which of the following are important factors in determining blood pressure?

Answer 31

Heart Rate Total peripheral resistance (TPR)

Question 32

Two atria of the heart contract together just before the ventricles contract

Answer 32

True

Question 33

The intrinsic conduction system of the heart

Answer 33

Generates a continuous HR without intervention

Question 34

Heart rate (HR) and strength of contraction (contractility) are controlled by the cardiovascular centre located in the:

Answer 34

Brainstem

Question 35

Parasympathetic activity increases heart rate (HR)

Answer 35

False

Question 36

Release of Aldosterone and ADH

Answer 36

Increase BP

Question 37

Increased parasympathetic activity

Answer 37

Decrease BP

Question 38

Decrease in HR

Answer 38

Decrease BP

Question 39

Increase in blood volume

Answer 39

Increase BP

Question 40

Decrease TPR

Answer 40

Decrease BP

Question 41

Increase HR

Answer 41

Increased BP

Question 42

Renin-angiotensin mechanism

Answer 42

Increase BP

Question 43

Increased sympathetic activity

Answer 43

Increase BP

Question 44

Release of atrial naturetic peptide (ANP

Answer 44

Decrease BP