MCQs

Question 1

How to calculate tidal volume?

Answer 1

Weight in kg x 7ml.

Question 2

How many phases during diastole?

Answer 2

4

Question 3

What is chronic insomnia?

Answer 3

3 times a week for 3 months or more.

Question 4

What stage of sleep do you dream?

Answer 4

REM

Question 5

Most anterior valve?

Answer 5

Pulmonary

Question 6

What is thick filament is muscle?

Answer 6

Myosin

Question 7

What is correct term for lack of oxygen in blood?

Answer 7

Hypoxaemia

Question 8

What reduces stroke volume?

Answer 8

Decreased inotrophy

Question 9

What are capacitiance vessels?

Answer 9

Contain most of the blood and accommodate changes in blood volume (veins).

Question 10

What are exchange vessels?

Answer 10

Exchange of materials between blood and tissues (capillaries).

Question 11

What are pressure vessels?

Answer 11

Arteries, strong muscular vessel undergo large amounts of pressure.

Question 12

Which muscles active for normal quiet inspiration?

Answer 12

External intercostal and diaphragm.

Question 13

What causes first heart sound (S1)?

Answer 13

Closing of tricuspid and mitral.

Question 14

What is the name of muscular layer of ventricular wall?

Answer 14

Myocardium

Question 15

What is the role of bronchial circulation?

Answer 15

Supplies oxygenated blood to lungs and airways.

Question 16

What two wavelengths are used by pulse oximetry?

Answer 16

LED is red, 660nm and other is infrared, 940nm.

Question 17

When is surge in melatonin?

Answer 17

During evening (prepares you for sleep).

Question 18

What are respiratory bronchioles comprised of?

Answer 18

Smooth muscle and respiratory epithelium.

Question 19

Where is the crista terminalis?

Answer 19

Right atrium

Question 20

What is the function of the crista terminalis?

Answer 20

Original of pectinate muscles, SA node is in superior part of crista terminalis. It is a C shaped ridge.