MEDT200 Lecture Notes - Lecture 12: Paranasal Sinuses, Amniotic Fluid, Umbilical Cord

• School: University of Delaware
• Department: Medical Laboratory Sciences
• Course: MEDT200
• Professor: Mc Lane Mary Ann

Document Summary

External respiration: exchange of air in lung capillaries. Oxygen inhaled into the air sac of the lungs. Carbon dioxide passes from capillaries into air sacs to be exhaled. Internal respiration: exchange of gases in the cells. Oxygen passes out of the bloodstream and into the tissues. Carbon dioxide passes out of tissues into the bloodstream to travel to the lungs. Carried as hydrogen ions associated with hemoglobin. Mediastinum: middle area in chest where trachea divides into two branches, heart location. Hium: blood vessels, nerves, lymphatic tissue, and bronchial tubes enter and exit. Right = 3 lopes ; left = 2 lobes. *every tissue in the body has to be within two cells layers of a capillary to provide oxygen and* * no exchange of co2 and o2 in any part of the respiratory structure* Pleural rub scratchy; irritated pleural surfaces rubbing against each other. Rale (crackle) popping; small airway fluid. Rhonchus loud rumbling; sputum in bronchi.