Respiratory System Flashcards
What chemical reaction happens in the mitochondria?
O2+Glucose->CO2+H2O+ATP+heat
What is pulmonary respiration?
Pumping are in/out of the lungs
What is external respiration?
Gas exchange within the alveoli of the lung
What is internal respiration?
Gas exchange at the capillaries of the tissues of the body
What are the zones of the respiratory system?
Conducting zone and respiratory zone
What is the conducting zone?
Cleanses, humidifies, and warms incoming air. Upper respiratory area and most of lower
What is the respiratory zone?
This is where gas exchange occurs. ONLY Respiratory bronchioles and alveoli
What makes up the upper respiratory area?
Nose, nasal cavity, pharynx
What makes up the lower respiratory area?
Larynx, trachea, bronchus, lungs
Describe the respiratory epithelium.
Pseudostratified ciliated columnar epithelium (PCCE); Goblet cells secrete mucous for protection, cilia moves mucous up and out
Describe the structural changes as you go down the respiratory system
Most cartilage at larynx, gradually decreases until none at the bronchioles. PCCE becomes simple columnar, then simple cuboidal. Mucous cells gradually decrease until none at the bronchioles. Smooth muscle increases to control bronchioles.
What is the pleura?
Connective tissue surrounding the lungs
Describe the structure of the pleruae
Visceral (touching the lungs) and parietal (touching other bodily tissues) layers, pleural fluid between layers
What is the function of the pleura?
Lubrication to reduce friction (fluid), compartmentalization that allows lungs to function independently, pressure gradient
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