Air moves into the alveoli as a result of the: (A)Decreased pressure in the chest cavity (B) Relaxation of the diaphragm (C) Rising pressure in the alveoli (D) Rising pressure in the chest cavity

Gas exchange in the lungs takes place in the (a) alveoli, (b) bronchioles, (c) segmental bronchi, (d) lobar bronchi.

The alveolar walls are composed of two types of cells type I and type II pneumocytes. The function of type II cells is to O increase surface tension O secrete surfactant O decrease surface tension O trap dust and other debris O b) and c) O b) and d)

Fill in the space with the appropriate word from the word-bank below; causing During inhalation, the diaphragm and intercostal muscles 36.... 37................ in the volume of the chest-cage. This creates 38............... pressure in the lungs and causes air to flow from 39................... During exhalation, the diaphragm and intercostal muscles 40................... causing 41.................. of the volume of the chest-cage. This creates 42................. pressure in the lungs and causes air to flow from 43................... ● Inside to outside ● ● ● ● ● Expansion Compression Relax Constrict Outside to inside

According to Laplace's Law:

Which of the following is the respiratory membrane composed of? A) atria and alveolar sacs B) alveolar and capillary walls and their fused basement membranes C) respiratory bronchioles and alveolar ducts D) respiratory bronchioles and alveolar sacs

Which of the following occurs for expiration to occur? a. the thoracic volume decreases b. the thoracic volume increases c. the intrapulmonary pressure decrease compared to atmospheric air pressure d. the intrapleural pressure becomes more negative

In the alveoli Multiple Choice   a)no exchange with the blood occurs.   b) oxygen diffuses out of the blood while carbon dioxide diffuses into the blood.   c) oxygen diffuses into the blood while carbon dioxide diffuses out of the blood.   d) both oxygen and carbon dioxide diffuse into the blood.   e) both oxygen and carbon dioxide diffuse out of the blood.

Cigarette smoke irritates the lining of your airway, causing it to [6]; this makes the diameter of your airway [7] and slows the movement of air. Smoke also slows the movement of [8]. Is a "smoker's cough" due to damage of alveoli or bronchial tubes? [9] Is a long-term smoker's difficulty breathing due to damage of alveoli or bronchial tubes? [10] [11] is a lung disease caused by damage to the alveoli.

When intubating an infant, you should utilize which of the following laryngoscope blades? A) Macintosh B) Curved C) Miller D) Stylette