Resp BB Quiz

Question 1

The most important factor in the control of ventilation is?

Carbon dioxide excess

Lack of Oxygen

Answer 1

Carbon dioxide excess

Question 2

The dead space of an adult, compared to an infant would normally be?

smaller

larger

Answer 2

LARGER

Question 3

Which of the following parameters CANNOT be directly measured by the spirometer?

tidal volume

residual volume

inspiratory reserve volume

expiratory reserve volume

Answer 3

residual volume

Question 4

The lung volumes that are assessed by the spirometer are WHAT compared to the actual volumes in the lungs?

larger

the same

smaller

Answer 4

smaller

Question 5

Compared to breathing dry air what is it like breathing in a steam room?

more difficult

easier

Answer 5

more difficult

Question 6

What happens to the compliance of the lungs as we grow older?

it decreases

it increases

Answer 6

decreases

Question 7

Compared to the standing position what happens to the vital capacity when the person lies down?

it increases

it decreases

Answer 7

decreases

Question 8

Alveolar ventilation is equal to?

dead space ventilation

tidal volume times respiratory rate

minute ventilation

minute ventilation minus dead space ventilation

carbon dioxide production / minute

Answer 8

minute ventilation minus dead space ventilation

Question 9

Define - functional residual capacity

Answer 9

the maximum amount of air that a person can expel from their lungs after first filling the lungs to their maximum extent

Question 10

Define - inspiratory capacity

Answer 10

the volume of gas in the lungs after the end of maximal inspiration

Question 11

Define - vital capacity

Answer 11

the maximal volume that can be inspired from resting end-expiratory level

Question 12

Define - total lung capacity

Answer 12

the amount of air remaining in the lungs at the end of normal expiration

Question 13

Define - expiratory reserve volume

Answer 13

the amount of air that can still be forcefully expired after the end or a normal tidal expiration

Question 14

Define - inspiratory reserve volume

Answer 14

the extra volume of air that can be inspired over and beyond the normal tidal volume

Question 15

Define - residual volume

Answer 15

the volume of air remaining in the lungs even after the most forceful expiration

Question 16

Define - Tidal Volume

Answer 16

the volume of air inspired and expired with each normal breath

Question 17

Because there is more oxygen in an alveolus than in the blood around it, oxygen diffuses from the

capillaries into the veins

arteries into the capillaries

alveolus into the blood

blood into the alveolus

Answer 17

alveolus into blood

Question 18

Cells in the breathing centre monitor the amount of oxygen in the blood

True
False

Answer 18

False

Question 19

Direct and immediate physiological consequence of smoking on the cardiovascular system is?

a) constricts blood vessels
b) causes blood pressure to rise
c) makes the heart work harder
d) causes heart disease

Answer 19

A

Question 20

Select the answer that lists the respiratory structures from largest to smallest.

Alveoli, bronchioles, bronchi

Bronchioles, bronchi, alveoli

Bronchi, bronchioles, alveoli

Bronchi, alveoli, bronchioles

Answer 20

Bronchi, bronchioles alveoli

Question 21

Select the statement(s) that is/are TRUE about gas exchange.

a) It is a very efficient process.
b) Exhaled air usually contains no oxygen
c) The lungs remove about half of the oxygen of inhaled air
d) The lungs increase the carbon dioxide content of inhaled air by a factor of 100

Answer 21

a) It is a very efficient process.

d) The lungs increase the carbon dioxide content of inhaled air by a factor of 100

Question 22

The brain controls breathing in a centre located in the medulla oblongata

True
False

Answer 22

True

Question 23

The force that drives air into the lungs comes from air pressure.

True
False

Answer 23

True

Question 24

What happens when pressure in the chest cavity becomes greater than atmospheric pressure?

Air rushes into the lungs

Air cannot escape from the lungs

The diaphragm contracts

Air rushes out of the lungs

Answer 24

Air rushes out of the lungs