Paranasal sinuses: air-filled cavities in the skull that reduce
its weight, enhances voice resonance and helps filter, humidify,
and protect the respiratory system through mucus production.
The pulmonary pleurais a membrane that surrounds the lungsand allows smooth movement during breathing. Its layers and pleural fluidreduce friction and protect lung structures.
The pulmonary pleura illustrationshows the membrane surrounding the lungs, including the visceraland parietal pleuraand the pleural cavity, which allows smooth lung movement during breathing.
The respiratory epitheliumlines the airways,such as the tracheaand bronchi. It produces mucusand contains ciliathat help protect, clean, and humidify the air entering the respiratory system.
The respiratory mucous membranelines the tracheaand bronchi, producing mucusand using ciliato clean, protect, and humidify the air entering the respiratory system.
The respiratory system allows the body to obtain oxygen and remove carbon dioxide. Moreover, its organs work together to keep the body balanced. Therefore, understanding how breathing works helps protect respiratory health.
The respiratory systemincludes organs such as the nose, pharynx, larynx, trachea, bronchi, and lungs. These structures allow the exchange of oxygen and carbon dioxideduring breathing.
The rib cage is a skeletal structure made of ribs,
sternum, and thoracic vertebrae. It protects the
heart and lungs while supporting breathing
movements.
The structure of the bronchishows how these airways carry air from the tracheainto the lungs, branching into secondary bronchiand bronchiolesto distribute air throughout the respiratory system.
The structure of the pulmonary alveolusconsists of tiny air sacs surrounded by blood capillaries. These structures allow the exchange of oxygen and carbon dioxide, a vital process for breathing and body function.
Thoracic cavity layers include skin, subcutaneous tissue,
intercostal muscles, ribs, and costal cartilage. Together, they
protect the heart and lungs while supporting breathing
movements.
Thoracic cavity muscles assist breathing by moving the
ribs and diaphragm. They support lung expansion and
protect vital organs such as the heart, lungs, trachea,
and major blood vessels.