Semifinals Quiz 1

Question 1

Involuntary breathing is controlled by

a. the pulmonary arterioles.
b. neurons located in the medulla and pons.
c. the alveolar capillary network.
d. the bronchioles

Answer 1

b. neurons located in the medulla and pons.

Question 2

Which is the best time to collect sputum
sample?
a. On awakening
b. Before bedtime
c. After a meal
d. Before a meal

Answer 2

a. On awakening

Question 3

The two main branches extending from the
trachea to the lungs.
a. Alveoli
b. Capillaries
c. Bronchioles
d. Bronchi

Answer 3

d. Bronchi

Question 4

In human beings the number of lobes in right
and left lungs respectively is?
a. 4 and 2
b. 2 and 3
c. 3 and 2
d. 2 and 2

Answer 4

c. 3 and 2

Question 5

The exchange of gases between blood and
cells is called
a. cellular respiration
b. external respiration
c. pulmonary ventilation
d. internal respiration

Answer 5

d. internal respiration

Question 6

The primary chemical stimulus for breathing
is the concentration of...
a. oxygen level in the blood
b. carbonic acid in the blood
c. carbon monoxide in the blood
d. carbon dioxide in the blood

Answer 6

d. carbon dioxide

Question 7

Rate and depth of respiration shall increase
when
a. Oxygen concentration increases
b. Bicarbonate concentration decrease
c. Bicarbonate concentration increases
d. CO2 concentration increases

Answer 7

d. CO2 concentration increases

Question 8

Which continuous breath sounds are
relatively high pitched with a hissing or shrill
quality?
a. Fine crackles
b. Wheezes
c. Rhonchi
d. Coarse crackles

Answer 8

b. Wheezes

Question 9

During the process called exhalation, what is
expected to happen?
a. The diaphragm relaxes and moves inferiorly
b. The diaphragm contracts and moves
inferiorly
c. The diaphragm relaxes and moves superiorly
d. The diaphragm contracts and moves
superiorly

Answer 9

c. The diaphragm relaxes and moves superiorly

Question 10

What happens when we breathe in?
a. The external intercostal muscles contract
and the ribcage is pulled upwards and
inwards
b. The external intercostal muscles contract
and the ribcage is pulled upwards and
outwards
c. The internal intercostal muscles contract
and the ribcage is pulled upwards and
outwards
d. The internal intercostal muscles contract
and the ribcage is pulled upwards and
inwards

Answer 10

b. The external intercostal muscles contract and the ribcage is pulled upwards and outwards

Question 11

Which of the following indicates a partial
obstruction of the larynx or trachea and
demands immediate attention?
a. Rhonchi
b. Crackles
c. Pleural rub
d. Stridor

Answer 11

d. Stridor

Question 12

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
Which of the following is the correct order that
air would flow during inhalation.
a. 4,2,3,1
b. 2,3,1,4
c. 1,2,3,4
d. 2,1,3,4

Answer 12

b. 2, 3, 1 ,4

Question 13

Which of the following statements is true
about involuntary breathing?
a. it is controlled by the pulmonary arterioles
b. It is controlled by the bronchioles
c. It is controlled by the neurons, located in the medulla and pons
d. It is controlled by the alveolar-capillary
network

Answer 13

c. it is controlled by the neurons, located in the medulla and pons

Question 14

Which of the following prevents collapsing of
trachea?
a. Muscles
b. Ribs
c. Diaphragm
d. Cartilaginous rings

Answer 14

d. Cartilaginous rings

Question 15

Wheezes most commonly suggest…

a. secretions in large airways.
b. narrowed airway
c. abnormal lung tissue.
d. airless lung areas.

Answer 15

b. narrowed airway

Question 16

Cellular respiration needs two factors. They

are. …
a. nitrogen and fluid
b. carbon dioxide and water
c. energy and food
d. glucose and oxygen

Answer 16

d. glucose and oxygen

Question 17

The amount of air that moves in and out of
the lungs, with each normal inspiration and
expiration is called
a. Vital capacity
b. Residual volume
c. Tidal volume
d. Tidal capacity

Answer 17

c. Tidal volume

Question 18

When the oxygen supply to the tissues is
inadequate, the condition is...
a. Pleurisy
b. Anoxia
c. Asphyxia
d. Hypoxia

Answer 18

d. Hypoxia

Question 19

Which of the body systems listed below
cooperate to supply O2 to cells and eliminate
CO2?
1) digestive system
2) cardiovascular system
3) urinary system
4) respiratory system
5) endocrine system
a. 1, 2, and 4
b. 3 and 5
c. 1 and 2
d. 2 and 4

Answer 19

d. 2 and 4

Question 20

Which of these statements is true about
internal respiration?
a. Production of ATP
b. Breathing between the atmosphere and the alveoli
c. Exchange of gases between the bloodstream and tissue cells
d. Exchange of gases between alveoli and the
bloodstream

Answer 20

c. Exchange of gases between the bloodstream