Ch. 7 - Ventilation, Perfusion, and Shock Flashcards
cellular function of converting nutrients into energy
metabolism
cellular process in which oxygen is used to metabolize glucose
aerobic metabolism
process in which glucose is metabolized into energy without oxygen
anaerobic metabolism
open and clear; free from obstruction
patent
volume of air moved in one cycle of breathing
tidal volume
amount of air breathed in during each respiration times number of breaths per minute
minute volume
air that occupies the space between the mouth and alveoli
dead air space
section of brain responsible for respiratory control
medulla oblongata
chemical sensors in the brain and blood vessels that identify changing levels of oxygen and carbon dioxide
chemoreceptors
pull exerted by large proteins in the plasma portion of blood that pull water from the body into the bloodstream
plasma oncotic pressure
pressure within a blood vessel that tends to push water out of the vessel
hydrostatic pressure
sensors in blood vessels that identify internal pressure
stretch receptors
the pressure in the peripheral blood vessels that the heart must overcome to pump blood
systemic vascular resistance (SVR)
amount of blood ejected from the heart in one contraction
stroke volume
heart rate x stroke volume
cardiac outpout