1.
The functions of the respiratory system are?
Correct Answer(s)
A. Extract oxygen form the atmosphere
B. Excrete water and Co2
C. Maintain pH levels of the blood
D. Ventilate the lungs
2.
Inspired air contains approximately?
Correct Answer(s)
A. 78% nitrogen
B. 21% oxygen
C. 0.04% C02
D. 1% inert gases
E. Water vapour (variable)
3.
Expired air contains approximately?
Correct Answer(s)
A. 79% nitrogen
B. 16% oxygen
C. 4% C02
D. 1% inert gases
E. Water vapour (variable)
4.
All of the following make up the respiratory tract except?
Correct Answer
A. Diaphragm
5.
The larynx is protected by the epiglottis that shuts when food or fluids are being swallowed and opens for breathing. Does this mechanism still work in a unconscious patient?
Correct Answer
A. No
6.
Which lung has 3 lobes?
Correct Answer
A. The right
7.
Which network surrounds the alveoli?
Correct Answer
A. Capillaries
8.
An exchange of gases happens in 2 places?
Correct Answer
A. True
9.
The average resp rate of a adult at rest is between?
Correct Answer
A. 10 to 20
10.
Respiratory compromise can be categorised in to?
Correct Answer(s)
A. Obstruction of air passages
B. Chest and lung trauma
C. Paralysis
D. Deoxygenated atmosphere
E. Lung disease and illness
11.
Respiratory conditions cause hypoxia in three ways?
Correct Answer
B. False
Explanation
1.Airway obstruction 2.Impaired perfusion of the alveoli
12.
Water vapour is expired from the lungs?
Correct Answer
A. True
13.
The nose contains ciliated columnar epithelium?
Correct Answer
B. False
14.
The cricoid ring is incomplete posteriorly?
Correct Answer
B. False
15.
The alveoli walls are classed as semi–permeable membrane?
Correct Answer
A. True
16.
The pharynx plays a part in the sense of taste?
Correct Answer
A. True
17.
The trachea is composed of c-shaped cartilage?
Correct Answer
A. True
18.
The trachea is composed of approx how many pieces of C shape cartilage?
Correct Answer
A. 16 to 20
19.
The pharynx is approximately how long?
Correct Answer
A. 13 cm
20.
Air exchange within the alveoli takes place by?
Correct Answer
A. Diffusion
21.
Hypercarbia means lack of carbon dioxide in the blood?
Correct Answer
B. False
Explanation
The physical condition of having the presence of an abnormally high level of carbon dioxide in the circulating blood.
22.
The trachea of an average sized adult is?
Correct Answer
A. 10 - 12 cm long
23.
In the lungs there are approximately how many alveoli?
Correct Answer
A. 300 million
24.
Pulmonary ventilation is which law?
Correct Answer
A. Boyles Law
25.
How many litres of air can the lungs hold?
Correct Answer
A. 6 litres
26.
How many ml of oxygen do the lungs use?
Correct Answer
A. 500ml
27.
Internal respiration takes place in the lungs?
Correct Answer
B. False
Explanation
External respiration takes place in the lungs, internal respiration takes place in the tissues.
28.
In a healthy adult a person breaths in approximately 500 ml of air per respiration. How much actually reaches the alveolar sac's found in the lungs?
Correct Answer
A. 350ml
Explanation
The other 150 ml remains in anatomical dead space.
29.
Which receptor monitors CO2 and O2 in the blood?
Correct Answer
A. Chemoreceptors
30.
At rest how many milliliters of 02 does the body cells use each minute?
Correct Answer
A. 200ml
31.
CO2 is over (?) times as strong as the binding of 02 to haemoglobin.
Correct Answer
A. 200
32.
In a embryo when does the respiratory system begin to develop?
Correct Answer
A. Week 4
33.
Each lung is enclosed in a single protective membrane called the pleural membrane?
Correct Answer
B. False
Explanation
Each lung is enclosed in a double layered protective membrane called the pleural membrane. The outer is called pleural pleura and the inner deeper on is called the visceral pleura.
34.
Which bronchus is longer?
Correct Answer
A. Left
35.
Which bronchus is wider?
Correct Answer
A. Right
36.
The respiratory system maintains the pH levels of the blood. What should the level be?
Correct Answer
A. 7.4
Explanation
0 is like battery acid, 7 is neutral and 12 is like soapy water.
37.
What is the most important muscle of inhalation?
Correct Answer
A. Diaphragm
38.
The diaphragm is dome is shape, during normal contraction it descends about 1cm. In strenuous breathing it may descend?
Correct Answer
A. 10 cm
39.
During inhalation the intercostal muscles?
Correct Answer
A. Contract
40.
Blood circulation in the lungs is called?
Correct Answer
A. Pulmonary circulation
41.
The alveoli are lined with a substance called?
Correct Answer
A. Surfactant
42.
How many lobes does the left lung have?
Correct Answer
A. 2
43.
In a adult the trachea is approximately (?) in diameter.
Correct Answer
A. 2 - 1/2 cm
44.
In adults what percentage of air remains in the upper airway passages?
Correct Answer
A. 30%
45.
The anatomical dead space includes the trachea & larger bronchi?
Correct Answer
A. True
46.
Ventilation is the process of moving air in and out of the lungs?
Correct Answer
A. True
47.
Inspiration is the process of moving air out of the lungs?
Correct Answer
B. False
Explanation
Inspiration is the process of moving there into the lungs. Expiration is the process of moving there out of the lungs.
48.
How many parts of the brain are responsible for respirations?
Correct Answer
A. 4
49.
Stretch receptors in the lungs are responsible for the Hering-Breuer reflex which causes you to take deep breaths?
Correct Answer
A. True
50.
Chemoreceptors can be found in the heart?
Correct Answer
B. False
Explanation
They are found in the aortic arch.