ANAT 216 Lecture Notes - Lecture 15: Bronchopulmonary Segment, Lung, Smooth Muscle Tissue

• School: Queen's University
• Department: Anatomy and Cell Biology
• Course: ANAT 216
• Professor: Leslie W Mac Kenzie

Document Summary

Respiratory system: lecture 2 (reading material: chapter 24: pages 638-647) (lungs) Exactly like the serous membrane associated with the heart. Extend between the heart and parietal layer lung. Forms the wall which separates the pleural cavity from the mediastinum. visceral layer. Covers and is stuck tight to the outer surface of the lungs. Serous membrane secretes pleural fluid (10-12 ml)which fills the space between the parietal and visceral layer. Acts as a lubricant to minimize fiction between the lungs and the thoracic wall. cavity, fluid. *root structures going into the lung or coming out of the lung: air passageways, pulmonary arteries going to lungs, pulmonary veins going out of lungs, nerves, lymphatics. The root connects the lungs to the mediastinum. ***the connective tissues of the root of each lung extends into its substance (parnechyma). These fibrous partitions are called trabeculae and contain elastic fibers, smooth muscle and lymphatics.