Cardiovascular System Flashcards
closed system
BLOOD pumped throughout body by heart via arteries, veins, and capillaries
open lymphatic system
has LYMPH that bathes interstitial spaces between cells and is circulated through lymph vessels
closed, double looped
- has thick walled ARTERIES that transport blood AWAY from heart
- thin wall veins: transport blood TO heart
capillaries
made of single layer of endothelium that form a network that connects arteries to veins in tissue
-exchanges of gas occur here and alveoli
pulmonary loop
carries DEOXYGENATED blood from RIGHT ventricles to lungs and return oxygen blood to LEFT ATRIUM
systemic loop
carries OXYGENATED blood from LEFT ventricles to body, returning deoxygenated blood to RIGHT ATRIUM
capillary beds
- smallest tubules; SLOWEST
- diffusion site for exchange between BLOOD and INTERSTITIAL FLUIDS
atrial contraction
FIll ventricles
ventricular contraction
EMPTIES ventricles, forcing circulation
lymphatic system
return excess tissue fluid to bloodstream
lymph vessels
- (like veins) thin-walled
- has 1 valve
lymph capillaries
intertwined with cardiovascular capillaries and absorb excess tissue fluid and blood
lymph nodes
filter through 100s of small organs
BP average
120/80 - 140/90
systole
- contraction
- causes blood to push against muscular wall of arteries to max pleasure
