Cardiology ❤️ Flashcards Preview

VTNE STUDY > Cardiology ❤️ > Flashcards

Flashcards in Cardiology ❤️ Deck (41):
1

What are the two layers of the pericardium?

Fibrous pericardium and serous pericardium

2

The right atrium receives _______ blood.

Deoxygenated

3

The venae cavae empty into the ________.

Right atrium

4

After collecting in the right atrium, blood passes through the _______

Right atrioventricular valve

5

The right AV valve is also known as...

Tricuspid valve

6

During systole, the _________ contracts and the ________ closes

Right ventricle contracts, tricuspid (right AV) valve closes

7

After the tricuspid valve closes (right AV), blood is ejected from the right ventricle through the ______ and into the ________

Through the pulmonary valve and into the pulmonary arteries

8

From the pulmonary arteries, blood passes through branching vessels to the pulmonary capillaries of the aveoli, where what takes place?

Oxygen exchange

9

What delivers blood to the left atrium?

Pulmonary veins

10

Blood that has collected in the left atrium flows through the ______

Left atrioventricular valve

11

The left atrioventricular valve is also known as...

Mitral valve

12

During systole, the mitral valve snaps shut as the ventricle contracts and ejects blood through what structure?

Aortic valve

13

What is the largest artery in the body?

Aorta

14

Blood flows from the right atrium to the right ventricle through the _______

Right AV valve (tricuspid valve)

15

During _____, the heart muscle contracts and blood is ejected from the atria to the ventricles and then from the ventricles to the arteries

During systole

16

During _____, the heart relaxes and refills with blood to be ejected during the next systolic contraction

Diastole

17

Where does the impulse for a heartbeat come from?

Sinoatrial node (SA node)

18

Where is the SA node located?

In the right atrium

19

The pacemaker of the heart is known as the...

SA node

20

Depolarization of the heart is known as... (Systole or diastole)

Systole

21

Re polarization of the heart is known as... (Systole or diastole)

Diastole

22

What happens when the electrical impulse passes through the cardiac muscle?

The muscle contracts

23

The bundle of His fibers travel down the interventricular septum to the bottom end of the left and right ventricles. And the ______ fibers carry the impulses from the bundle of His up into the ventricular myocardium.

Purkinje fibers

24

"Lub" in "lub-dub" is properly called...

S1

25

"Dub" in "lub-dub" is properly known as...

S2

26

_____ is associated with sinultaneous closure of the mitral valve and tricuspid calves at the beginning of ventricular systole

S1 (lub)

27

The S2 heart sound (dub) is associated with what?

Associated with the closure of the semilunar valves at the beginning of ventricular diastole

28

Which side of the chest is the aortic valve easiest to hear on?

Easier to hear in the left side of the chest

29

Heart sounds S3 and S4 are heard on what animals?

Large animals

30

What is heart sound S3 due to?

Due to rapid ventricular filling in large animals

31

What is heart sound S4 due to?

Due to contraction of the atria in large animals

32

The amount of blood that leaves the heart is known as

Cardiac output

33

Cardiac output is determined by what two factors?

Stroke volume and heart rate

34

The amount of blood ejected with each cardiac contraction is known as

Stroke volume

35

How often the heart contracts is known as

Heart rate

36

A dogs heart ejects 2mL of blood into the aorta with each systolic contraction and its heart rate is 100 beats per minute, what is the animals cardiac output?

CO= stroke volume X heart rate
CO= 2mL/min (SV) X 100 beats/min (HR)
CO= 200mL/min

37

What is the instrument that measures electrical current using metal electrodes attached to the skin to produce an ECG/EKG?

Electrocardiograph

38

The bump on an ECG associated with the depolarization of the atria is the...

P wave

39

The wave on the ECG created by the ventricular depolarization is

QRS complex

40

The wave on the ECG associated with the repolarization of the ventricles is the

T wave

41

Name the outer layer of the heart

Pericardium