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Mass flow of the heart

Total questions: 22

Worksheet time: 14mins

Name
Class
Date
1.

Name the valves that lie between the atria and ventricles

a)

AV

b)

semi lunar

2.

Systolic blood pressure measured when the heart is...

a)

Contracting

b)

Relaxing

3.

Diastolic blood pressure measured when the heart is...

a)

Contracting

b)

Relaxing

4.
The pacemaker of the heart is also known as the....
a)
AV node
b)
SA node
c)
Purkinje fibres
d)
Bundle of His
5.
What fibres allow the ventricles to contract?
a)
SA
b)
AV
c)
Purkinje
d)
Bundle of His
6.
During the systole phase of the cardiac cycle, the ventricles....
a)
Contract
b)
Relax
7.
Which letter/s of the ECG shows the ventricles contracting.....
a)
P
b)
QRS
c)
ST
8.
Which node delays the ventricles from firing before fully filled?
a)
AV
b)
SA
9.

During ventricular systole

a)

only the AV valves open

b)

the semilunar valves open and the AV valves close

c)

only the semilunar valves close

d)

the semilunar valves close and the AV valves open

10.
The semilunar valves are only open during which phase
a)

atrial contraction and ventricular filling

b)

Atrial systole

c)

ventricular styole

d)

Diastole

11.
Receives oxygenated blood from the lungs
a)
Right Ventricle
b)
Left Ventricle
c)
Right Atrium
d)
Left Atrium
12.
A flap of tissue that prevents blood from flowing backward
a)
Aorta
b)
Atrium
c)
Septum
d)
Valve
13.

The opening of semilunar valves is due to

a)

increased ventricular pressure

b)

decrease ventricular pressure

c)

increased aortic pressure

d)

increase in artrial volume

14.

Which component of ECG cycle shows ventricular systole

a)

P

b)

QRS

c)

T

d)

U

15.

In the diagram below, which part of the tracing represents the contraction of the atria?

a)

P

b)

T

c)

R

d)

S

16.

This wave indicates diastole

a)

T waves

b)

U waves

c)

P waves

d)

Q waves

17.
The 'Lub' sound of the heart's LUB DUB? are the....
a)
Atrioventricular valves closing
b)
Semilunar Valves closing
c)
Blood flowing through the Pulmonary Trunk and Aorta
d)
Blood Flowing down into the venticles
18.
The 'Dub' sound of the heart's LUB DUB? are the....
a)
Atrioventricular valves closing
b)
Semilunar Valves closing
c)
Blood flowing through the Pulmonary Trunk and Aorta
d)
Blood Flowing down into the venticles
19.

Which of the following represents the Purkinje fibres?

a)

A

b)

B

c)

C

d)

D

20.

Which of the following represents the sino-atrial node?

a)

A

b)

B

c)

C

d)

D

21.

Which of the following represents the bundle of His?

a)

A

b)

B

c)

C

d)

D

22.

In which direction does an electrical impulse travel across the ventricles?

a)

Top to bottom

b)

Bottom to top

c)

Left to right

d)

Right to left

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