Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

PE-Miss Henderson/Mr Cole > Cardiovascular system at rest > Flashcards

Cardiovascular system at rest Flashcards

1
Q

What are the 4 chambers of the heart?

A

Right and Left atrium

Right and Left ventricle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 4 heart valves and which side are they on?

A

Tricuspid valve- R
Bicuspid valve- L
Pulmonary semilunar valve- R
Aortic semilunar valve- L

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 4 blood vessels that attach to the heart?

A

Vena Cava
Pulmonary artery
Pulmonary vein
Aorta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 4 features of the conduction system in order?

A

SA node
AV node
Bundles of His
Purkinje fibres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the order of blood flow through the heart on the right hand side?

A

Vena cava, right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve, pulmonary artery, lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the name of the circulation on the right hand side of the heart?

A

Pulmonary circulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the order of blood flow through the heart on the left hand side?

A

Pulmonary veins, left atrium, bicuspid valve, left ventricle, aortic semilunar valve, aorta, body tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the name of the circulation on the left hand side of the heart?

A

Systemic circulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the conduction system?

A

Specialised bundles of tissue that transmit the electrical impulse through the heart causing a coordinated contraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the SA node?

A

In wall of right atrium, sends impulse across both atria causing atrial systole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the AV node?

A

In the middle of heart (septum) between atria and ventricles, receives impulse from SA node and delays it for a moment to allow for atrial systole to finish then sends it down the Bundles of His

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the Bundles of His?

A

In the middle of heart, transmit the impulse to bottom of the right and left side of heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the Purkinje fibres?

A

In walls of ventricles, cause impulse to penetrate into ventricle walls causing ventricular systole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the 4 events of the cardiac cycle that make up the conduction system?

A

Atrial diastole and systole

Ventricular diastole and systole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does systole mean?

A

The heart is working-conduction phase of heart chamber when pumping out blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does diastole mean?

A

The heart is relaxing-relaxation phase of heart chamber when receiving blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is atrial systole?

A

Blood is pumped into ventricles

18
Q

What is ventricular systole?

A

Blood pumped into pulmonary artery and aorta

19
Q

What is atrial diastole?

A

Blood entering the atria via vena cava and pulmonary vein

20
Q

What is ventricular diastole?

A

Blood entering the ventricles from the atria

21
Q

What is the order of the systole/diastole for the conduction system?

A

Atrial diastole, atrial systole, ventricular diastole, ventricular systole

22
Q

What happens at atrial diastole with the conduction system?

1st in order

A

No electrical impulse, atria fills with blood from vena cava and pulmonary vein, AV valves closed, atrial pressure above ventricular pressure, blood passes into ventricles

23
Q

What happens at atrial systole with the conduction system?

2nd in order

A

SA node fires electrical impulse across atria, atria contract, AV valves forced open, remaining blood pumped into ventricles, semilunar valves closed

24
Q

What happens at ventricular diastole with the conduction system?
(3rd in order)

A

Impulse received by AV node, delayed for a moment to allow atria systole to complete, AV valves close, AV node sends impulse down the right and left Bundles of His into Purkinje fibres

25
Q

What happens at ventricular systole with the conduction system?
(4th in order)

A

Ventricles contract from bottom upwards, semilunar valves forced open, blood pumped out of ventricles into pulmonary artery and aorta

26
Q

What is HR?

A

The number of times the heart beats per minute

bpm

27
Q

What is SV?

A

The amount of blood ejected from the left ventricle per beat

ml

28
Q

What is Q?

A

The amount of blood ejected from the left ventricle per minute
(L/min)

29
Q

What is the equation for cardiac output?

A

Cardiac output = Stroke Volume x Heart Rate
Or…
Q = SV x HR

30
Q

What is the average resting HR?

A

70bpm

31
Q

What is the average resting SV?

A

70ml

32
Q

What is the average resting Q?

A

5L/min

33
Q

What is the average resting HR for an endurance athlete?

A

50bpm

34
Q

What is the average resting SV for an endurance athlete?

A

100ml

35
Q

What is the average resting Q for an endurance athlete?

A

5L/min

36
Q

What is it called when resting HR is lower than 60bpm?

A

Bradycardia

37
Q

How do you calculate max HR?

A

220-age

38
Q

What causes bradycardia?

A

An increased size and strength of heart known as Cardiac Hypertrophy

39
Q

What is Starling’s Law of the Heart?

A

SV depends on VR

When VR increases so does SV

40
Q

What is VR?

A

Venous return is the volume of blood returning to the heart

41
Q

If there is an increase in Q what does that mean for an endurance athlete?

A

That they’re heart is more efficient due to hypertrophy, so it pumps more blood per beat

PE-Miss Henderson/Mr Cole (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions