Biophysics

Question 1

Which one can be the normal values of partial pressure of oxygen in alveolar air and left atrium blood?

Alveolar air Left atrium

a) 95 mmHg 40mmHg
b) 0.3mmHg 47mmHg
c) 104 mmHg 40 mmHg
d) 104 mmHg 95 mmHg
e) 47 mmHg 40 mmHg

Answer 1

d) 104 mmHg 95 mmHg

Question 2

Which one can be the normal values of partial pressure of cabon dioxide in humidified air and alveolar air?

Humidified air Alveolar air

a) 27 mmHg 47 mmHg
b) 0.3mmHg 40 mmHg
c) 47 mmHg 40mmHg
d) 40 mmHg 47mmHg
e) 0.3mmHg 47mmHg

Answer 2

b) 0.3mmHg 40 mmHg

Question 3

Which one can be the cause of high intensity murmur heard between S1and S2 trough auscultation?

a) Aortic valve insufficiency
b) Aortic stenosis
c) Mitral insufficiency
d) VSD
e) Mitral stenosis

Answer 3

b) Aortic stenosis

Question 4

In an individual systolic arterial pressure is 100mmHg, diastolic arterial pressure is 70mmHg, what is the mean arterial pressure (MAP) in mmHg?

a) 110
b) 120

C) 100

d) 80
e) 90

Answer 4

d) 80

Question 5

In a normal heart, mean QRS vector has the highest projection on which axis

a) III
b) II
c) aVR
d) avF
e) I

Answer 5

b) II

Question 6

Which one(s) of the following cause right axis deviation?

I) Left ventricle hypertrophy

II) Left branch block

III) Right ventricle hypertrophy

a) Only I
b) Only III
c) I-III
d) I-II-III
e) II-III

Answer 6

b) Only III

Question 7

How does the below Starling forces change trough capillary from arterial end to venous end in normal conditions?

Pc ¥

a) decreases from 30 mmHg to 10mmHg /Remains same at 3mmHg
b) Remains same / decreases from 28 mmHg to 3mmHg
c) decreases from 30 mmHg to 10mmHg / Remains same at 28mmHg
d) decreases from 28 mmHg to 3mmHg /Increases from 3 mmHg to 8mmHg
e) Remains same at 30mmHg / Remains same at 3mmHg

Answer 7

c) decreases from 30 mmHg to 10mmHg / Remains same at 28mmHg

Question 8

Which one shows potential of the right hand compared to the indifferent electrode (average electrical point) on the ECG montage?

a) DI
b) aVR

C) DII

d) DIIl
e) avF

Answer 8

b) aVR

Question 9

Sag aks sapmasi hangisi gorunur?

Answer 9

Right branh blok, Right ventricle hypertrophy,

Question 10

Kapillerlerin kan degisiminin venoz tarafinda olmasinin sebebi?

Answer 10

Hyrosttatic pressure decrase of blood from 30 to 10

Question 11

Alveolar ve acik havadaki oksijen basinci ?

Answer 11

104 -159

Question 12

68.indiffrent elektrodu sol kola taktiginiz derivasyon?

Answer 12

aVL

Question 13

Hangisi oksijenin hemoglabinden ayrilmasi egrisini sola kaydiri?

Answer 13

PH yukselmesi

Question 14

S4 teki ses?

Answer 14

Atrial contraction

Question 15

sol bacaktan herhangi bi extremiteye bağlanan derivasyon

Answer 15

aVF

Question 16

second hearth sound

Answer 16

Closing of semiulnar valve

Question 17

aortic stenosis murmur?

Answer 17

Aortic valve opening

Question 18

T dalgası ne anlama gelir

Answer 18

Ventrical repolarization

Question 19

26.Which of the following heart sound is heard at the beginning of middle third of diastole?

A) S1-closure of A-V valves

B) S2-closure of semilunar valves

C) S3-in rushing blood from the atria

D) S4-in rush of blood in to the ventricules

E) None of them

Answer 19

C) S3-in rushing blood from the atria

Question 20

What is the cause of first heart sound (S1)?

A) Flow of blood from aurium to ventricules

B) Closure of semilunar valves

C) Closure of A-V valves

D) Ejection of blood into aorta

E) Atrial contraction

Answer 20

C) Closure of A-V valves

Question 21

in which of the following regions, the aortic valve sound is best heard ?

A) Midstemal

B) Xiphoid

C) Left 5 intercostal space

D) Left 2 intercostal space

E) Right 2 intercostal space

Answer 21

E) Right 2 intercostal space

Question 22

What is the cause for the third heart sound (S3)?

A) blood to pass from the atrium to the ventricle

B) the closure of the semilunar valves

C) the closure of the atrioventricular valves

D) blood to pass from the ventricle to the aorta

E) the contraction of the atrium

Answer 22

A) blood to pass from the atrium to the ventricle

Question 23

Which one can be the cause of high Intensity murmur heard between S1 and S2 at systolic phase?

A) Aortic stenosis

B) Mitral stenosis

C) the closure of the atrioventricular valves

D) Aortic regurgitation

E) the contraction of the atrium

Answer 23

A) Aortic stenosis

Question 24

32. In an individual with systolic arterial pressure 120mmHg and diastolic arterial pressure 90mmHg, what is mean arterial pressure (MAP) in mmHg?

A) 80

B) 90

C) 100

D) 110

E) 120

Answer 24

C) 100

Question 25

Which one does not affect flow of fluids between plasma inside

capillary lumina and interstitial fluid?

A) Hydrostatic blood pressure Inside capillary

B) Osmotical pressure due to plasma content

C)Osmotical pressure due to interstitial fluid content

D) Hydrostatic pressure exerted by interstitial fluid

E) Hydrostatic pressure Inside right atrium

Answer 25

E) Hydrostatic pressure Inside right atrium

Question 26

22.Alveolar and pulmonary capillary arterial end partial oxygen pressures (PO2) of a healty adult male person are given which one of the following choices respectively?

A) 104 kPA-40kPa

B) 149 kPa-45 kPa

C) 104 mmHg-45 mmHg

D) 104 mmHg-40 mmHg

E) 104 mmHg-104 mmHg

Answer 26

D) 104 mmHg-40 mmHg

Question 27

The T Wave on an ECG represents:

A) Ventricular Depolarization

B) Ventricular Repolarization

C) Atrial Depolarization

D) Systole

E) Diastole

Answer 27

B) Ventricular Repolarization

Question 28

Lung capacity representing the volume of air breathed out after the deepest inhalation is

A) Tidal volume

B) Forced expiratory volume

C) Vital capacity

D) Maximum expiratory flow rate

E) Functional residual capacity

Answer 28

C) Vital capacity

Question 29

What is the cause of second heart sound (S2)?

A) Flow of blood from atrium to ventricules

B) Closure of semilunar valves

C) Closure of A-V valves

D) Ejection of blood into aorta

E) Atrial contraction

Answer 29

B) Closure of semilunar valves