Brainscape's Knowledge GenomeTM

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


See full index

Physiology > Physio module 4 > Flashcards

Physio module 4 Flashcards

2
Q

Which of the ff statements is FALSE
A. There is MORE rapid ejection rate in semilunar valves than AV valves
B. there is MORE pressure needed to close AV valves than semilunar valves
C. There is no chordae tendinae in semilunar valves
D. Semilunar valves are subjected to greater mechanical abrasion

A

B. less pressure to close AV valves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q 
Valve/s CLOSE during period of ejection
A. AV valves	
B. semilunar valves	
C. Both
D. None
A

A. Semilunar valves OPEN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q 
Also known as the upstroke
A. Phase 1	
B. phase 2	
C. Phase 3	
D. Phase 4	
E. Phase 0
A

E

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q 
What are the determinants of CO?
A. HR	
B. SV	
C. BOTH	
D. NOTA
A

C

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

Caused by Over bulge of AV valve
A. C wave
B. a wave
C. V wave

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q 
A drug that changes heart's excitability is changing the \_\_\_\_\_ of the heart
A. Chronotropism
B. Dromotropism	
C. Inotropism	
D. Bathmotropism
A

D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q 
During which phase of the cardiac cycle does the mitral valve open?	
A. Atrial systole	
B. isovolumetric ventricular contraction
C. Rapid ventricular ejection
D. Isovolumetric ventricular relaxation
E. rapid ventricular filling
A

E

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

Contraction of the atria “tops off” ventricular filling with a final, small volume of blood from the atria, producing the ____
A. A wave
B. c wave
C. V wave

A

A

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

Which part of the ECG is characterized by transmission of electrical activity of the AV bundle

A

PR segment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q 
All muscles in the heart are non automatic except
A. Atrial muscle	
B. ventricular muscle
C. Bundle of His	
D. None of the above
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q 
This surface of the heart is also known as the anterior surface. What is this surface mostly composed of?
A. R atrium	
B. R ventricle	
C. L atrium	
D. L ventricle
A

B

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

In ECG,this Represents the time from the end of atrial depolarization to the start of ventricular depolarization

A

PR segment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q 
What valves are open during isovolumetric relaxation
A. AV valves	
B. semilunar valves	
C. Both
D. None
A

D

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

Condition that leads to irreversible changes and death of cardiac muscle cells

A

MI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q 
Majority of ventricular filling occurs in this phase?
A. Early systole	
B. late systole	
C. Early diastole	
D. Late diastole
A

C

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

The ff cause an increase in stroke volume except
A. Inc force of contraction of ventricles
B. inc after load
C. Both
D. None of the above

A

B. dapat decrease un after load

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q 
Stroke volume output may be increased by
A. Increasing end diastolic volume
B. decreasing end systolic volume
C. Both	
D. None of the above
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q 
Longest portion of the nodal action potential
A. Phase 1	
B. phase 2	
C. Phase 3	
D. Phase 4	
E. Phase 0
A

D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q 
All of the ff can influence the BP except
A. HR	
B. TPR	
C. CO	
D. NOTA
A

A

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

In ECG, this Represents the time required for SA node impulse to travel through the conduction system

A

PR interval

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

AV valves
A. prevents backflow of blood from ventricle to atrium during diastole
B. prevents backflow of blood from ventricle to atrium during systole
C. prevents backflow of blood from aortic valve to ventricle during diastole
D. prevents backflow of blood from aortic valve to ventricle during systole

A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q 
Other name of AV node	
A. Node of Keith and Flack
B. Node of Kent and TAwara
C. Purkinje fiber
D. Tract of Bachman
A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q 
This interval in the in the ECG reading corresponds to the ventricular rate. This can be also be a marker for the HR read from the ECG	
A. P-R interval
B. P-R interval	
C. R-R interval	
D. AOTA
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Normal value of QT interval

A

0.44 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q 
Aka maximum diastolic potential
A. Phase 1	
B. phase 2	
C. Phase 3	
D. Phase 4	
E. Phase 0
A

D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q 
The most common adult rhythm with the rates between 60 -100 / min
A. Sinus rhythm	
B. sinus bradycardia	
C. Sinus tachycardia	
D. Sinus exit block
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

A patient with AV block will have
A. Increased PR interval
B. decreased PR interval

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q 
An acute change in cardiac pressure
A. Cardiac tamponade
B. cardiac hypertrophy	
C. Perocardial effusion	
D. Pericarditis
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q 
Produced with vagal stimulation or due to sick sinus syndrome. ECG shows narrow QRS with upright P waves in lead II
A. Sinus rhythm
B. sinus bradycardia	
C. Sinus tachycardia	
D. Sinus exit block
A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

True or false. Murmurs are turbulent flows

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

True or false, cardiac muscles contract LONGER than skeletal muscle

A

True, kc may plateau sila

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q 
Other name of SA node	
A. Node of Keith and Flack
B. Node of Kent and TAwara
C. Purkinje fiber
D. Tract of Bachman
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q 
Which of the ff can result to an sinus tachycardia?
A. Pain	
B. increased oxygen demand
C. Hypovolemia
D. Sympathetic stimulation
E. AOTA
F. NOTA
A

E

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

In ECG, this Represents the entire period of ventricular depolarization and repolarization

A

QT interval

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q 
A slow progressive increase in pericardial fluid
A. Cardiac tamponade	
B. cardiac hypertrophy	
C. Perocardial effusion	
D. Pericarditis
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

True or false sinus arrhythmia is common on elderly population?

A

False … Common on children

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Increasing PR interval means
A. Longer AV conduction time
B. shorter AV conduction time

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q 
Hyperkalemia may cause the following EXCEPT
A. Decrease action potential
B. Decrease heart rate	
C. Makes heart flaccid	
D. Increases contraction	
E. none of the above
A

D. Decrease dapat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Valve located between the left atrium and left ventricle

A

MitraL valve

sa right, tRicuspid valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q 
Which type of fibrillation is asymptomatic?
A. Atrial	
B. ventricular	
C.sinus node	
D. AOTA
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

In ECG , this represents time from end of ventricular depolarization to the start of ventricular repolarization

A

ST segment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q 
What heart sound can be heard when AV valves close
A. First	
B. second	
C. Third	
D. Fourth
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q 
Primary controller of cardiac output
A. Heart	
B. venous return	
C. Capillary function	
D. CNS
A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q 
Described as the state of the heart is FULL because it is the volume after ventricular filling	
A. After load	
B. preload	
C. ESV	
D. EDV
A

D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

What part of the ECG pattern shows an isoelectric segment

A

ST segment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

A murmur heart throughout systole is
A. Insufficient AV valve, stenotic SL valve
B. stenotic AV valve, stenotic SL valve
C. Insufficient AV valve, insufficient SL valve
D. Stenotic AV valve, insufficient SL valve

A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q 
The base of the heart is occupied by this chamber?
A. L atrium	
B. r atrium	
C. L ventricle	
D. R ventricle
A

A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q 
Limb leads provide \_\_\_\_\_\_ plane while chest leads provide \_\_\_\_\_ plane of the heart	
A. Horizontal, vertical
B. horizontal, horizontal	
C. Vertical, vertical	
D. Vertical , horizontal
A

D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q 
Sympathetic stimulation of the heart except
A. Increase heart rate	
B. increase force of contractility
C. Increase volume of blood pumped
D. Decrease ejection pressure
A

D. Dapat increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q 
In the conduction sys of the heart where is the slowest conduction
A. SA node	
B. AV node	
c. Bundle of His	
D. Purkinje fiber
A

B.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Which receptor will be activated when there’s an inc. in pressure on blood vessels?

A

Baroreceptor,, carotid sinus location

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

A man presents with chest pain. You Suspect MI.. Did ECG .. Observed ST elevation on V1 and v2. What vessel is most likely blocked?

A

Left descending artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

What valves are open during isovolumetric contraction

A

None

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

True or false. SA node resting membrane potential is HIGHER than in neuromuscular junctions

A

False. LOWER. RMP is -60 Threshold is -40

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

A.k.a junctional node

A

Av node

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q 
A man was found to have lateral wall MI, Most likely there is also
A. Septal wall MI	
B. anterior wall MI	
C. Inferior wall MI	
D. superior wall MI
A

C. Same artery supplies it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

Valves close during isovolumetric contraction

A

AV valves and semilunar valves .

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

True or false. left side of the heart has THICKER muscle

A

True. Kc systemic circulation is a high pressure high resistant circuit so thicker muscle is needed to overcome it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q 
Valvular prolapse causes back flow of the blood. It can be caused by the ff except:	
A. Streptococcal bacterial infection
B. rheumatic fever
C. HTN	
D. NOTA
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q 
In counting heart rate in an ECG strip, if there is irregularity in RR intervals. The best method to use is
A. Rule of 300	
B. mathematical formula	
C. Six second strip	
D. Either of the choices
A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q 
The amount of extracellular calcium entering the plateau phase is directly proportional to the ff except
A. Intracellular calcium concentration
B. number of open calcium channels
C. Duration of action potential
D. Number of action potential
A

A. Dapat extracellular kc mas dun nagdedepend un heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

Impingement of the mitral valve due to back flow of the blood

A

Austin flint murmur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

In ECG this represents the Interval from the start of the P wave to the beginning of the QRS complex

A

PR interval

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q 
S2	
A. Closing of AV valves
B. closing of semilunar valves
C. Rapid ventricular filling
D. Atrial systole
A

B

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

Absent P wave is indicative of what abnormality?

A

Atrial arrhythmia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Normal range for PR interval

A

0.12-0.2 sec

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q 
When semilunar valve close it can be heard as \_\_\_\_\_ heart sound
A. First	
B. second	
C. Third	
D. Fourth
A

B

69
Q

Heart sound that is Audible in children with mitral stenosis

A

S3

70
Q 
Most frequent site of MI	
A. L ATRIUM	
B. L VENTRICLE	
C. R ATRIUM	
D. R VENTRICLE
A

B

71
Q

The atrial rise in pressure during atrial diastole is the
A. C wave
B. a wave
C. V wave

A

C

72
Q

Pacemaker of the heart

A

SA node

73
Q 
This segment/ interval in the ECG tracing corresponds to the ventricular contraction time. If this segment is too long it means that the heart is weak.	
A. PR interval	
B. QT segment	
C. PR segment	
D. QT interval
A

B

74
Q

Coughing
A. Decreases PR interval
B. increases PR interval

A

B

75
Q

sequence of electrical and mechanical events occurring in the heart during a single beat and the resulting changes in pressure, flow, and volume in the various cardiac chambers

A

Cardiac cycle

76
Q

If the SA and AV Nodes fail, this will take over

A

bundle of His

77
Q 
An increase in the net concentration of this ion will cause a flaccid heart effect, leading to ventricular fibrillation.
A. Ca	
B. Na	
C. K	
D. Cl
A

C

78
Q

In what phase does pacemaker potential occurs

A

Phase 4

79
Q

the difference in the volume of blood in the ventricle at the end of diastole and at the end of systole

A

Stroke volume

80
Q 
S3	
A. Closing of AV valves
B. closing of semilunar valves
C. Rapid ventricular filling
D. Atrial systole
A

C

81
Q

Which among the valves correspond to the DUB sound

A

Pulmonary and aortic valve

82
Q 
Period in the cardiac cycle wherein there is ventricular contraction but no ejection of blood	
A. Filling	
B. ejection
C. Ventricular relaxation	
D. Ventricular contraction
A

D

83
Q

Importance of the internodal delay in the AV node

A

Allow ventricle to be filled with blood

84
Q 
Increase in BP will result to \_\_\_\_\_\_ HR while an increase in temp will result to \_\_\_\_\_\_ HR	
A. INC, DEC	
B. DEC, INC	
C. INC, INC
	D. DEC, DEC	E. INC, NO CHANGE
A

C

85
Q

How much pressure must be overcome by ventricular pressure to open semilunar valves

A

80 mmHg

86
Q 
Plateau phase	
A. Phase 1	
B. phase 2	
C. Phase 3	
D. Phase 4	
E. Phase 0
A

B

87
Q

A.k.a. Pulmonic pump

A

R ventricle

88
Q

When does atrial systole become important in ventricular filling
A. Resting condition
B. exercising condition

A

B. normally okay LNG Khit dysfunction un atrial systole kc 20% LNG un contribution Niya sa ventricular filling

89
Q 
Acidosis can inhibit myocardial contractility. It is a
A. Negative Dromotropic	
B. negative inotropic	
C. Negative bathmotropic
D. Negative chronotropic
A

B

90
Q

Ejection fraction except
A. Determines the percentage of blood pumped out from the R ventricle over its EDV
B. 60% is still normal
C. Determines the percentage of the SV over the EDV of L ventricle
D. 70% is still normal

A

A

91
Q

Arrange the ff sequence of blood circulation of a deoxygenated blood

  1. Superior Vena cava
  2. Left ventricle
  3. Left atrium
  4. Right ventricle
  5. Right atrium
  6. Tricuspid valve
  7. Mitral valve
  8. Lungs
  9. Aorta
A

156483729

92
Q

How can myocardial ischemia decrease cardiac contractility

A

Inhibition of calcium channels

93
Q

This pacemaker has the smallest fibers and tend to be the only pacemaker left for the ventricles during third degree heart block

A

Purkinje fibers

94
Q 
What valves are CLOSE during isovolumetric relaxation
A. AV valves
B. semilunar valves	
C. Both
D. None
A

C

95
Q

True or false. LEFT atrial systole occurs first

A

False. Una un right

96
Q

Nerve that causes the flaccid heart is

A

Vagus nerve

97
Q

short period of backward flow of blood immediately before closure of the aortic valve,followed by sudden cessation of the backflow

A

Incisura

98
Q

What phase in the cardiac cycle does atrium increase in size due to venous return

A

Reduced ejection

99
Q

The ff describes the AV nodes EXCEPT
A. Where electrical conduction is at its slowest
B. N region is the most common site of AV block
C. Has large diameter
D. NH assumes pacemaker function when SA node is depressed

A

C. Small diameter. Kya NGa mabagal un conduction dun e

100
Q 
Filling of ventricles occur maximally during
A. Isovolumic cxn period	
B. Atrial systole	
C. Vasodilation	
D. Rapid ejection period	
E. first 1/3 of diastole
A

E

101
Q 
Which of the following comprises the AV valves
A. Tricuspid valve	
B. mitral valve	
C. Both	
D. None
A

C. Semilunar valves un aortic and pulmonary valve

102
Q

When ejection exceeds aortic pressure run off
A. Aortic pressure increases
B. aortic pressure decreases
C. No change in aortic pressure

A

A

103
Q 
SV is said to be lowest in which of the ff?
A. Muscular activity	
B. Recumbent position	
C. Slow walking	
D. Erect position
A

D

104
Q

Semilunar valves
A. prevents backflow of blood from ventricle to atrium during diastole
B. prevents backflow of blood from ventricle to atrium during systole
C. prevents backflow of blood from aortic valve to ventricle during diastole
D. prevents backflow of blood from aortic valve to ventricle during systole

A

C.

105
Q

Site of principal delay in the conduction sys of the heart

A

AV node specifically AN region

106
Q

Semilunar valves refer to the ff except
A. Composed of aortic and pulmonary valve
B. requires no backflow
C. prevents backflow of blood from aortic valve to ventricle during diastole
D. Requires a quick backflow to cause closure

A

B. AV valve un requires no backflow to cause closure

107
Q

Heart sound audible with left ventricular hypertrophy patients

A

S4

108
Q 
Valve/s OPEN during period of filling
A. AV valves	
B. semilunar valves	
C. Both	
D. None
A

A. Semilunar valves close

109
Q

Where can you hear the largest heart sound

A

Left 5 th ICS MCL. Apex beat

110
Q 
Sequence of electrical conduction of the heart
A. Bundle of His	
B. Purkenje fiber	
C. SA node	
D. Internodal pathway
A

CDAB

111
Q

True or false,congenital defect of the pericardial sac is fatal

A

False,

112
Q

Characteristic of second heart sound except
A. Semilunar valves close
B. short lasting as compared to first heart sound
C. Low vibration
D. Occurs at the end of systole

A

C. High vibration dapat

113
Q 
The following can cause positive shift in maximum diastolic pressure except	
A. Inc depolarization rate	
B. decrease pre potential	
C. Dec threshold	
D. None of the above
A

B. dapat increase

114
Q

Which of the following statements is TRUE
A. External work refers to the movement of blood from LOWER pressure VEINS to HIGHER pressure ARTERIES
B. External work refers to the movement of blood from HIGHER pressure VEINS to LOWER pressure ARTERIES
C. External work refers to the movement of blood from HIGHER pressure ARTERIES to LOWER pressure VEINS
D. External work refers to the movement of blood from LOWER pressure ARTERIES to HIGHER pressure VEINS

A

A

115
Q

True or false. Artery have thicker wall than veins

A

True

116
Q 
What heart sound is associated with very fast ventricular filling
A. First	
B. second	
C. Third	
D. Fourth
A

C

117
Q

sum of all the local blood flows through all the individual tissue segments of the peripheral circulation

A

Venous return

118
Q 
What type of cardiac muscle is responsible for the autorhythmicity of the heart	
A. Atrial muscle	
B. ventricular muscle	
C. Conductive and excitable muscle
D. All of the above
A

C.

119
Q

Used as the power pump of the heart

A

Ventricles

Atria- primer pumps

120
Q

In pre cordial leads, where will you put v1

A 
V1 4th ICS R parasternal border
V2 4th ICS L parasternal border
V3 between V2 and V4	
V4 5th ICS L MCL	
V5 5th ICS L AAL	
V6 5th ICS left MAL
121
Q

Function of cardiac valves

A

Prevent backflow/ regurgitation of bloodAssures forward flow of blood

122
Q

Natural pacemaker of the heart

A

SA Node

123
Q

Arteries are also called capacitance vessels. Veins are called resistance vessels
A. 1st statement true, second statement false
B. 1st statement false, 2nd statement false
C. Both are true
D. Both are false

A

D. Veins un capacitance, arteries un resistance. Pag capillaries naman exchange vessel

124
Q

The ff refers to SA node except
A. Capable of self excitation
B. located at the superior posterolateral part of the right atrium
C, directly connected to atrial muscle fibers
D. None of the above

A

D

125
Q

True or false. The pulmonary artery carries OXYGENATED Blood

A

False. Deoxygenated

126
Q

Importance of delay in the transmission of conduction of atrium to ventricle

A

Allows ventricle to be filled with blood

127
Q 
Blood flowing backward through a damaged leaky valve
A. Stenosis	
B. insufficiency	
C. Tamponade	
D. Myocardial infarction
A

B

128
Q

What part of the cardiac cycle corresponds the apex beat

A

Rapid ejection

129
Q 
Heart rate is determined by
A. Interval bet 2 P wave	
B. interval bet 2 QRS wave
C. Interval bet 2 T wave	
D. Interval bet 2 z line
A

B

130
Q

Which part of ECG is characterized by prolonged wave

A

T wave

131
Q 
The ff may cause tachycardia except
A. Fever	
B. simple weakening of myocardium
C. Symphatolytic agent	
D. Increase rate of metabolism of SA node
A

C

132
Q

Negative shift in maximum diastolic potential results in
A. Bradycardia
B. tachycardia

A

A

133
Q

A murmur heard during diastole
A. Insufficient AV valve, stenotic SL valve
B. stenotic AV valve, stenotic SL valve
C. Insufficient AV valve, insufficient SL valve
D. Stenotic AV valve, insufficient SL valve

A

D

134
Q

In precordial leads, what lead is put in 5th ICS L MCL

A

V4

135
Q

First 1/3 of the ventricular diastole corresponds the _____ in the cardiac cycle

A

Rapid filling
Second 1/3 un reduced filling
Last 1/3 un atrial systole

136
Q 
Major reservoir of extra blood
A. Artery	
B. capillary	
C. Vein	
D. Arterioles
A

C

137
Q

What heart sound is heard immediately before first heart sound

A

S4

138
Q 
Main source of energy of the heart
A. Carbohydrate	
B. protein	
C. Fatty acids	
D. Nucleotides
A

C

139
Q 
S4	
A. Closing of AV valves	
B. closing of semilunar valves
C. Rapid ventricular filling
D. Atrial systole
A

D

140
Q 
S1 signifies	
A. Closing of AV valves	
B. closing of semilunar valves
C. Rapid ventricular filling
D. Atrial systole
A

A

141
Q

Characteristic of an action potential of SA node EXCEPT
A. Spontaneous generation of impulse even without neural input
B. unstable resting membrane potential
C. No sustained plateau
D. Exhibits tetany

A

D

142
Q 
Other name for conductivity
A. Chronotropism	
B. Dromotropism	
C. Inotropism	
D. Bathmotropism
A

B

143
Q

What disease is most commonly associated with gallop rhythm

A

Congestive heart failure

144
Q

True or false. Atrium contracts first compared to ventricle

A

True

145
Q 
blood flowing rapidly in the usual direction through an abnormally narrow valve
A. Stenosis	
B. insufficiency	
C. Tamponade	
D. Myocardial infarction
A

A

146
Q

30% of blood volume is pumped into the ventricle during what cardiac cycle phase

A

Atrial systole/ pre systole

147
Q 
To increase the turbulence flow the ff must be done except
A. Increase diameter	
B. increase viscosity	
C. Increase fluid density	
D. Increase velocity
A

B. dapat decrease

148
Q 
According to the streamline flow, what part has the fastest velocity
A. Lateral side
B. medial side	
C. Anterior	
D. Posterior
A

B

149
Q

True or false. In normal circumstances there is turbulent flow

A

True. In the aorta and carotid sinus

150
Q 
Other name for autorhythmicity
A. Chronotropism	
B. Dromotropism	
C. Inotropism	
D. Bathmotropism
A

A

151
Q 
Inability to open completely
A. Stenosis	
B. insufficiency	
C. Tamponade	
D. Myocardial infarction
A

A

152
Q

Represents ventricular repolarization in the ECG

A

T wave

153
Q 
Inability to close completely
A. Stenosis	
B. insufficiency	
C. Tamponade	
D. Myocardial infarction
A

B

154
Q 
Accounts for the automaticity of nodal cells
A. Phase 1	
B. phase 2	
C. Phase 3	
D. Phase 4	
E. Phase 0
A

D

155
Q

Which of the following is the correct sequence of cardiac cycle
A. Rapid filling , diastasis, isovolumetric relaxation , atrial systole
B. diastasis, isovolumetric relaxation, atrial systole, rapid filling
C. Isovolumetric relaxation, rapid filling , diastasis. Atrial systole
D. Atrial systole, isovolumetric relaxation, diastasis, rapid filling

A

C

156
Q

Main goal of circulatory system

A

Tissue perfusion

157
Q

Ejection fraction refers to the following EXCEPT
A. Is normally around 60%
B. fraction of end diastolic volume ejected
C. Fraction of end systolic volume ejected
D. Two of the above

A

C

158
Q

True or false, left coronary artery is SHORTER than the right one

A

True, but supplies more

159
Q

P wave represents

A

Atrial depolarization

160
Q 
Drug that causes negative inotropism
A. Digoxin	
B. verapamil	
C. Norepinephrine	
D. Epinephrine
A

B

161
Q 
Progressive and sustained enlargement of the heart
A. Cardiac tamponade	
B. cardiac hypertrophy	
C. Perocardial effusion
D. Pericarditis
A

B

162
Q

True or false. Mitral valve has muscles

A

False. Its movement is dictated by PRESSURE gradient

163
Q

Represents ventricular diastole in ECG

A

T wave

164
Q 
Condition in which bleeding occurs due to puncture of coronary vessels during catherization
A. Cardiac tamponade	
B. cardiac hypertrophy	
C. Perocardial effusion	
D. Pericarditis
A

A

165
Q

Represents ventricular depolarization in ECG

A

QRS complex

166
Q

defined as the volume of blood ejected from the heart per unit time

A

Cardiac output

167
Q

Where can you hear apex beat

A

Left 5th ICS

Physiology (9 decks)

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