HE201 Study Guide - Final Guide: External Intercostal Muscles, Internal Intercostal Muscles, Intrapleural Pressure
Document Summary
Exchange of oxygen and co2 between the atmosphere and body tissues. Respiratory system overview and anatomy: cannot live without fresh o2 for too long. Helping to regulate ph of the blood: adjusting the co2 levels in the body. Enabling vocalization (enables us to be speak and sing: passage of air over our vocal cords. External respiration: exchange of oxygen and carbon dioxide between atmosphere and body tissue. Internal respiration: oxidative phosphorylation, oxygen is used to generate atp in the mitochondria, byproduct is co2. Respiratory tract: larynx trachea (has rings of cartilage) bronchi bronchioles alveolar sac. Can be divided into two parts: conducting zone and respiratory zone. Takes the mucus upwards towards the pharynx where than it can be swallowed: muscous elevator (prevents muscous from entering the delicate centers in the resipiatory zone) In the alveolus, you can sometimes see macrophage (cells of the immune system that are capable engulfing pathogens) Respiratory muscles and lungs are in the thoracic cavity.
