Pathology 2420A Lecture Notes - Lecture 8: Multiple Drug Resistance, Pleurisy, Cyanosis

• School: Western University
• Department: Pathology
• Course: Pathology 2420A
• Professor: Candace Gibson

Document Summary

Abscess - a localized collection of pus (i. e. an area of liquefactive necrosis in lung tissue). Acinus (acini) - in the lung the basic unit where gas exchange occurs; it includes respiratory bronchioles and its alveolar ducts and alveolar sacs; an acinus is supplied by a single terminal bronchiole. Alveolus (alveoli) - literally means a small cell or cavity, it is the thin-walled sac-like terminal dilation of the acinus (respiratory bronchiole, alveolar ducts and alveolar sacs) across which gas transfer takes place across the alveolar- capillary membrane. Pleura - the membrane that covers the lungs and lines the walls of the. Respiratory failure - the inability to maintain normal oxygen saturation of the blood and to remove carbon dioxide from the blood entering the lungs. Function: oxygenation of blood, removal of waste products (co2) This requires: ventilation - movement of air, perfusion - movement of blood. Airways, acini and alveoli, vasculature, lymphatics, pleura.