* not completed

. Most of the large particles (5-15 μm) that are inhaled become lodged in the mucus lining of the upper airways.

True correct incorrect

False correct incorrect

* not completed

. The respiratory tract from the upper airways to the respiratory bronchioles is lined with a ciliated epithelium

True correct incorrect

False correct incorrect

* not completed

. The mucus layer of the respiratory epithelium is secreted by the epithelial cells.

True correct incorrect

False correct incorrect

* not completed

. The glycoproteins of the mucus have the ability to neutralize antigens present in the inspired air.

True correct incorrect

False correct incorrect

* not completed

. The ability of the lungs to provide enough air for the body's needs is known as the ventilatory capacity.

True correct incorrect

False correct incorrect

* not completed

. Which of the following statements regarding asthma are correct?

Asthmatic attacks are the result of bronchospasm. correct incorrect

During an asthmatic attack, the FRC and RV are increased correct incorrect

During an asthmatic attack the FEV1 and peak flow are increased. correct incorrect

Administration of β2 adrenoceptor agonists during an asthmatic attack relieve the dyspnoea by relaxing the bronchial smooth muscle. correct incorrect

* not completed

. Which of the following statements about emphysema are correct?

there is destruction of the lung parenchyma correct incorrect

there is an increase in the physiological dead space. correct incorrect

there are abnormal ratios in different part of the lungs correct incorrect

The vital capacity is increased. correct incorrect

* not completed

. Which of the following statements regarding oxygen supply to the tissues are correct?

insufficient oxygen supply to the tissues is known as hypoxia. correct incorrect

a decrease in the amount of haemoglobin available for binding oxygen is known as hypoxic hypoxia correct incorrect

In anaemic hypoxia the arterio-venous difference in oxygen saturation is much greater than for normal blood. correct incorrect

The administration of a high partial pressure of oxygen is always beneficial in the treatment of hypoxia. correct incorrect

* not completed

. A 30 year old man with no history of respiratory disease has recently suffered from inflammation of the nasal passages and is increasingly breathless. On admission to hospital he has a heart rate of 120 b.p.m. and a respiratory rate of 25 min^-1. His peak expiratory flow rate is 50 percent of the expected value. What is the most likely cause of his distress?

Adult respiratory distress syndrome (ARDS) correct incorrect

An acute asthmatic attack correct incorrect

Cystic fibrosis correct incorrect

Emphysema correct incorrect