the cellular process in which oxygen is used to metabolize glucose. Energy is produced in a efficient manner with minimal waste products
anaerobic metabolism
the cullular process in which glucose is metabolized into engergy without oxygen. Energy is produced in a n inefficient manner with many waste products
cardiac output
the amount of blood ejected from the heart in 1 min. (heart rate x stroke volume)
chemoreceptors
chemical sensors in the brain and blood vessels that identify changing levels of oxygen and co2
deadair space
air that occupies the space between the mouth and alveoli but that does not actually reach the area of gas exchange
dehydration
an abnormally low amount of water in the body
edema
swelling associated with the movement of water into the interstitial space
electrolyte
a substance that, when dissolved in water, separates into charged particles
FiO2
fraction of inspired oxygen; the concentration of oxygen in the air we breathe
hydrostatic pressure
the pressure within a blood vessel that tends to push water out of the vessel
hypersensitivity
an exaggerated response by the immune system to a particular substance
hypoperfusion
inability of the body to adequately circulate blood to the body's cells to supply them with oxygen and nutrients. Also called shock
metabolism
the cellular function of converting nutrients into energy
minute volume
the amount of air breathed in during each respiration multiplied by the number of breaths per min
patent
open and clear; free from obstruction
pathophysiology
the study of how disease processes affect the function of the body
perfusion
the supply of oxygen to, and removal of wastes from, the cells and tissue of the body as a result of the flow of blood through the capillaries
plasma oncotic pressure
the pull exerted by large proteins in the plasma portion of blood that tends to pull water from the body into the bloodstream
shock
the inability of the body to adequately circulate blood to the body's cells to supplythem with oxygen and nurtrients. Also called hypoperfusion. A life-threatening condition
stretch receptors
sensors in blood vessels taht identify internal pressure
stroke volume
the anount of blood ejected from the heart in one contraction
systemic vascular resistance (SVR)
the pressure in the peripheral blood vessels taht the heart must overcome in order to pump blood into the system
tidal volume
the volume of air move in one cycle of breathing
V/Q match
ventilation/perfusion match. This implies that the alveoli are supplied with enough air and that the air in the alveoli is matched with sufficient blood in the pulmonary capillaries to permit optimum exchange of oxygen and carbon dioxide