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Chrystal Angelica Avengoza posted an update in the group
Histology Art – F (2022) 3 years, 8 months ago Respiratory System
The primary function of the respiratory system is to bring fresh air into your body while eliminating waste gases.
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Elastic tissues in the lungs allow them to inflate and deflate without losing their form. A thin lining called the pleura protects them. The bronchial tree, lungs, heart, and other structures are all housed in the thorax, which is an airtight cage.
Trachea
It is the airway that continues below the larynx. To maintain the trachea open, strong cartilage rings are attached to the walls. Cilia line the trachea, which push fluids and foreign particles out of the airway, keeping them out of the lungs.
Alveoli
During the act of breathing in and out, the alveoli are where the lungs and blood exchange oxygen and carbon dioxide. Simple squamous epithelium lines each alveolus, which is extremely thin to allow oxygen diffusion while yet establishing an epithelial barrier between the outside air and interior body fluids.