Physiology of Life and Death Flashcards
What term describes the air in respiratory system that never reaches the alveoli?
Dead air space
What is the normal volume of dead air space?
150ml
What term describes the volume of oxygen consumed by the body in 1 minute?
oxygen consumption
What term describes the diffusion of oxygen form the RBCs into the tissue cells?
Internal (cellular) respiration
What are the two processes that make up metabolism?
glycolysis and krebs cycle
What occurs during glycolysis?
glucose is broken down to form two pyruvate molecules
What is produced by the Krebs cycle?
Energy and carbon dioxide
What are the three ways trauma can affect the respiratory systems ability to adequately provide oxygen and eliminate carbon dioxide?
Hypoxemia
Hypoxia
Hypoventilation
What term describes a decrease level of oxygen in the blood?
hypoxemia
What term describes deficient tissue oxygenation?
Hypoxia
What term describes as a state of generalized cellular function change from aerobic metabolism to anaerobic metabolism secondary to hypoperfusion of the tissue cells?
Shock
What organs have the greatest ischemic sensitivity?
Brain, heart and lungs (5-6 minutes before irreversible damage)
What principle is a description of the of the components necessary for oxygenation of the body cells?
Frick Principle
What three components make up the Frick Principle?
On-loading of oxygen to RBCs is the lung
Delivery of RBCs to tissue cells
Off loading of oxygen from RBCs to tissue cells
What are the three categories of shock?
Hypovolemic
Distributive
Cardiogenic