Exam 3 health Assessment Ch 11 Flashcards
What requires adequate oxygenation for optimal functioning
Metabolism, motion, tissue integrity, sleep, and nutrition
Ventilation
process of moving gases in and out of the lungs by inspiration & expiration
Diffusion
process by which oxygen and carbon dioxide move from an area of high concentration to areas of low concentration
3 main structures in the Thorax or chest
Mediastinum, and right and left pleural cavities
Mediastinum is possitioned in the
middle of the chest: Within it lie the heart, the arch of aorta, the superior vena cava, the lower esopgagus, and the trachea.
Each pleural cavity contains
The lungs:
The pleural cavities are lined with two serious membranes
the parietal and visceral pleurae
The chest wall and diaphragm are protected by the parietal pleura and the lungs are protected by the visceral pleurae.
Differences in the right and left lungs
Right lung has: three lobes
Left lung has: two lobes
Each lung extends anteriorly about 1.5 inches above the first rib into the base of the neck in adults. Posteriorly to the level of T1. The base or lower border of each lung expands down to T12 during deep inspiration and rise approximately to T9 on expiration
Most of the respiratory system is protected by?
The thoracic cage consisting of 11 thoracic vertebrae.