Lungs Class Notes - Edubirdie

University:
Stanford University
Course:
MED 101 | Human Anatomy
Academic year:

2024
Views:

343

Pages:

1
Author:

larbi43100

‭Lungs.‬ ‭The right lung has 3 lobes separated by 2 fissures.‬ ‭The left lung has 2 lobes separated by a fissure.‬ ‭ he‬ ‭lungs‬ ‭are‬ ‭surrounded‬ ‭by‬ ‭a‬ ‭serosa‬ ‭which‬ ‭protects‬ ‭it.‬ ‭This‬ ‭serosa‬ ‭is‬ T ‭called the pleura. It consists of two sheets:‬ ‭⮚‬ ‭a parietal layer (which surrounds the thoracic cavity).‬ ‭⮚‬ ‭a visceral layer (which envelops the lung)‬ ‭ etween‬ ‭these‬ ‭two‬ ‭layers,‬ ‭there‬ ‭is‬ ‭the‬ ‭pleural‬ ‭cavity‬ ‭which‬ ‭is‬ ‭lined‬ ‭by‬ ‭a‬ B ‭fluid‬ ‭film‬ ‭(pleural‬ ‭fluid)‬ ‭which‬ ‭will‬ ‭allow‬ ‭the‬ ‭sliding‬ ‭and‬ ‭therefore‬ ‭the‬ ‭movements of the lungs upwards and downwards.‬ ‭In the pleural cavity there is a negative pressure (