Brainscape's Knowledge GenomeTM

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


See full index

Physiology > CVS > Flashcards

CVS Flashcards

1
Q

Sympathtic nerve supply from

A

Lateral horn of T1 to T5 segments of spinal cord

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

Hearts is also referred as

A

Pump

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

Right vagus nerve supply

A

Sino atrial nerve

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

Left vagus supply

A

Atrioventricular nerve

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

Hearts pumps

A

70 beats per minute

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

Muscle of heart

A

Cardiac

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

Specialized area in cardiac muscle

A

Intercalated discs

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

Gap junctions act as

A

Low resistant bridges

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

What is excitability

A

The ability of a tissue to respond to a stimulus

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

RMP in excitability

A

-90mV

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

What ia phase 4 of ionic basis of excitability

A

Restoration of RMP is due to Na K ATPase pump

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

What is autorhythmicity

A

Ability of tissue to generate its own impulse at regular intervals

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

Ability of tissue to contract and generate firce

A

Contractility

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

Contractile phase is

A

Systole

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

Relaxation phase is

A

Diastole

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

Muscle fails to respond to second stimulus

A

Long refractory period

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

Two types of refractory period

A

Absolute and relative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Increase in heart rate

A

Decreases the duration of cardiac cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does atrium do during the major part of the cardiac cycle

A

Relax

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How much seconds for atrial systole

A

0.1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Seconds for atrial diastole

A

0.7

22
Q

Time of ventricular systole and ventricular diastole

A
  1. 3

0. 5

23
Q

Steps in isovolumetric contraction

A 
A V valve close
First heart sound
Ventricle contract as closed cavity
Volume of ventricle doesn’t change
Interventricular pressure increases
24
Q

In which step of ventricular systole does the semi lunar valve is open

A

Rapid ejection

25
Q

Steps in Protodiastole

A 
Ventricle relax 
semi lunar valves are still open 
AV valves closed 
Iso volumetric pressure decreases 
blood tries to come back 
semi lunar valve close 
second heart sound
26
Q

In which step does isovolumetric pressure decreases below atrial pressure

A

Isovolumetric relaxation

27
Q

Steps in rapid filling

A

AV valves open
sudden rush of blood
turbulence produces third heart sound

28
Q

Slow filling is also called

A

Diastasis

29
Q

Steps in slow filling

A

Both atria and ventricles relaxes
AV valves are still open
passive filling of ventricle

30
Q

Atrial systole forces the blood to ventricles in which step

A

Final rapid filling

31
Q

What is end diastole volume

A

120

32
Q

Stroke volume

A

70

33
Q

What is electrocardio gram

A

Recording of the electrical changes that occur in the myocardium during a cardiac cycle

34
Q

Death of myocardium is known as

A

Myocardial infarction

35
Q

Volume of blood pumped out per ventricle per minute

A

Cardiac output

36
Q

What is the average of heartbeat

A

60 to 90 bpm

37
Q

The factors which affects of volume

A

Venous return
peripheral resistance
myocardial contractility

38
Q

What is blood pressure

A

The lateral pressure exerted by a moving column of blood on the walls of blood vessels

39
Q

What is systolic blood pressure

A

The pressure or the maximum pressure recorded in the arteries during ventricular systole
100-140

40
Q

Mean arterial blood pressure

A

The pressure required to drive the blood to vital organs or the mean pressure exerted in the arterial compartment during a cardiac cycle

41
Q

Why is mean arterial blood pressure important

A

Because it determines the volume of blood flow through an organ or tissue

42
Q

Factors that affect cardiac output

A 
Heart regulation 
nerve supply 
chemical regulators 
hormone 
and higher centres
43
Q

Factors affecting stroke volume

A

Peripheral resistance
myocardial contractility
venous return

44
Q

Which is the seat of maximum peripheral resistance

A

Arterioles

45
Q

Stimulation of sympathetic nerve to arterioles results in

A

Vasoconstriction

46
Q

Which receptor mechanisms inhibits cardiac inhibitory center

A

Chemo

47
Q

Chemoreceptor mechanisms are present in

A

Carotid bodies and Aortic bodies

48
Q

Which mechanism starts to act when the pressure is below 60

A

Chemo

49
Q

Stimuli for chemo receptor mechanism

A

Decreased PO2

increased H+ ion concentration increased PCO2

50
Q

Increased PCO2 in the brain is because of

A

CNS ischemic response

51
Q

CNS ischemic response has direct stimulation on

A

VMC

Physiology (10 decks)

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