MCQs on Respiratory System 1
1. Which of the following is not found in the upper respiratory tract ?
- Oropharynx
- Palatine tonsils
- Fauces
- Trachea
2. The respiratory tract is lined with
- Simple squamous epithelium
- Stratified cuboidal epthelium
- Pseudostratified ciliated columnar epithelium
- Simple ciliated columnar epithelium
3. Which of the following statements are false ?
- The larynx is also called the voice box
- The respiratory tract is also referred to as the bronchial tree
- Respiratory disease never reduces the ability to speak in complete sentences
- The cricoid cartilage is a major landmark for a tracheostomy
4. How many lobes are thre in the left lung ?
- 1
- 2
- 3
- 4
5. Which of the following is not part of respiration ?
- Internal ventilation
- External respiration
- Pulmonary ventilation
- Transport of gases
6. Which gas law states that the pressure exerted by a gas is inversely proportional to its volume ?
- Henry's law
- Daton's law
- Boyle's law
- Fick's law
7. With regards to the work of breathing, what forces must respiratory muscles overcome in order to inflate the lungs ?
- Natural elastic recoil of lung tissue
- Liquid/air surface tension
- Airway resistance
- All of the above
8. How is themajority of oxygen transported around the body ?
- Dissolved in plasma
- Attached to haemoglobin
- As bicarbonate ions
- Attached to plasma proteins
9. Which of the following statements on gseous exchange is true ?
- Arterial pulmonary circulation is low in carbon-di-oxide
- Venous pulmonary circulation is high in carbon-di-oxide
- The concentration of oxygen in the alveoli is higher than in lobular circulation
- The concentration of carbon-di-oxide in lobular circulation is lower than in the alveoli
