ECare - Chapter 7 (Ventilation, Perfusion, & Shock: Understanding Pathophysiology) Flashcards
pathophysiology
study of how disease processes affect the function of the body
metabolism
cellular function of converting nutrients into energy (ex. glucose into ATP)
electrolytes
substance that separates into charges particles when dissolved
alveoli
place where exchange of oxygen and carbon dioxide with the blood happens
perfusion
delivery of oxygenated blood from body cells and removal of wastes
patent
open and clear
tidal volume
volume of air moved in one cycle of breathing
minute volume
amount of air breathed in during each respiration multiplied by the number of breaths /min
dead air space
air that occupies space between the mouth and alveoli but doesn’t reach area of gas exchange
medulla oblongata
associated with respiratory function
pleural space
space between lung tissue and chest wall
plasma oncotic pressure
the pull exerted by large proteins in plasma that pulls water from the body into the bloodstream
hydrostatic pressure
pressure within a blood vessel that pushes water out of the vessel
capillaries (heart)
oxygen is off-loaded and carbon dioxide is picked up from cells of the body
capillaries (lungs)
deoxygenated blood goes from pulmonary arteries to lungs. arterioles connect with capillaries. carbon dioxide is off-loaded and oxygen is transferred from the air in the alveoli into capillaries