01:146:356 Lecture Notes - Lecture 15: Pulmonary Pleurae, Thoracic Cavity

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:356
• Professor: Gary Merrill

Document Summary

Systems physiology notes: ventilation and respiratory gases (day 1) Lung is the building and the alveoli to the bronchials compose the hvac systems. Hvac is the air circulation system that bring refreshed and overturned air. Ventilation: the nuclear process and physiological application to the movement of air into and out of the lungs. Caused by the simultaneous occurrence of the diaphragm dropping and the respiratory muscles engaging and pulling outward on the sac membrane) Inspiratory neurons create an action potential, the diaphragm descends, and the volume increases. Boyle"s la(cid:449): the produ(cid:272)t of pressure and volume is a constant value. Figure 27. 1: the elastic properties of lungs and thoracic cavity. The chest cavity and lungs are always contrasting/ opposite each other in elastic pull/direction. From the recoil, they find a balance. The intrapleural space is the medium in between which the recoil plays with. Set of absolute pressures (left side of diagram)