HUMB2008 Study Guide - Final Guide: Thoracic Duct, Trachea, Esophagus
2 Aug 2018
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Document Summary
Describe the pleural layers of the lung and their roles. Describe the relationships and list the contents of the superior and inferior mediastinum. Describe the layers of the heart wall. Describe the location and orientation of the heart in the chest cavity. Explain the pathway of blood through the heart. Label the structures of the thorax including the musculature, vessels and nerves in a transverse, sagittal and coronal plane. Abdominal muscles (contract and push the diaphragm upwards) Pleural layers of the lungs and their roles. Outer layer, continuous with the thoracic wall and the diaphragm. Moves with the thoracic wall and diaphragm during inspiration. Secretes pleural fluid which provides lubrication between surfaces when breathing. Inner later, closely covers the outer surface of the lung and continues into the fissures to cover the individual lobes as well. Secretes pleural fluid that provides lubrication between surfaces when breathing.
