Respiratory 3 Flashcards
What is any sound that accompanies air movement through the tracheaobronchial tree?
Lung sounds
What sounds are: crackles and wheezes?
Pathological sounds
What measures volume of inhaled and exhaled air to calculate lung capacity and to diagnose lung disease?
Spirometer
What is a smooth serous membrane composed by a single cell layer fused to the surface of adjacent connective tissue?
Pleura
What is fused to the surface of both lungs?
Visceral pleura
What is fused to the thoracic wall?
Partial pleura
What is the space between both pleural layers, filled with pleural fluid and under a negative pressure?
Pleural space
What is an open connection between the pleural space and outside air or the alveoli that leads to:
Lung collapse
Mediastinum displacement
Death from asphyxia
Pneumothorax
During inspiration, the lungs expand with thorax but also RECOIL because:
1) the _____ ______ of fluid inside the alveoli
2) the elastic forces inside produced by _____ and collagen fibers
Surface tension
Elastin
What pleural pressure is always negative?
Intrapleural
What pressure is the difference between the alveolar and the intrapleural pressures?
Transpulomonary pressure
What is produced by the attractive forces between water in the liquid films that lines each alveolus?
Surface tension
What causes airways to be held up during normal conditions?
Transpulmonary pressure difference
What measures the distensibility of the lung and determines the change in lung volume that occurs for a given change in transpulmonary pressure?
Compliance
What depends on the following:
1) elasticity of the tissue in lungs and thoracic cage
2) surface tension in the alveoli
Compliance
