2. The olfactory mucosa is the lines of the roof in the nasal cavity. The respiratory mucosa is lining the rest of the nasal cavity and it’s important for defense. It contains mucus for trapping inhaled particles, mucus is pushing towards pharynx and swallowed, humidifies the incoming air. There is also lysozyme, which is an enzyme to destroy bacterial cells and a large blood supply …show more content…
Alveoli is the tertiary bronchi further branch to form small tubes that are called bronchioles. It contains alveolar ducts, which end in alveolar sacs and alveoli is a bud from the respiratory bronchioles, alveolar ducts, and alveolar sacs. Type I is a squamous alveolar cell that function to do gas exchange, type II is a great alveolar cell because it keeps the alveoli from collapsing by secreting surfactant which reduces surface tension of the water contain in your lungs. Alveolar macrophages are dust cells that are the immune defense. The respiratory membrane is formed by type I alveolar cells by the alveolus wall and a capillary wall, it’s where gas exchange occurs. The components of respiration membrane are alveolar epithelial cell, basement membrane, and capillary epithelial …show more content…
The various factors that affect how much oxygen is bound to hemoglobin is the concentration of oxygen in arterial blood. The binding to hemoglobin takes four oxygen molecules for one hemoglobin, oxyhemoglobin, and deoxyhemoglobin. Oxyhemoglobin dissociation curve is the relationship between hemoglobin saturation and PO2 not linear. The hemoglobin changes shape to facilitate further uptake after binding with oxygen and metabolic needs can change loading/unloading of oxygen. The factors affecting oxygen unloading from the hemoglobin are due to tissue PO2 by activating tissue and decreasing PO2 by releasing more oxygen. Temperature is increased by active tissue and more oxygen is released, Bohr Effect has more carbon dioxide by active tissue which raises [H+], lowers pH, and more oxygen is released. Factors affecting carbon dioxide loading into the blood is the Haldane effect. There are low levels of HbO2 enabling blood to transport more carbon