Cardiovascular System Flashcards
right
lungs
left
body
veins carry
blood to the heart
arteries carry
blood away
capillaries
the smallest blood vessels
capillaries have
thin walls for diffusion and exchange of materials
the left atruim recieves
blood
the pulmonary trunk
splits
AV Node
what distributes electric signals throughout the heart
Semilunar
what stops blood from flowing backwards in the verins
blood leaves the heart through the
right ventricle
SA Node (pacemaker)
initiates electric potential
right atrium
when it contracts it pushes blood through the tricuspid valve
inferior vena cava
one of the bodys largest blood vessels from below the diaphram
when blood leaves the chamber of the heart and out into the body
left ventricle
what prevents blood from flowing back into the atra when ventricles contract
AV Valves
the recieving chambers of the heart are
atria
the discharging chambers of the heart are the
ventricles
why is coronary circulation an essential process
the circuit of the heart eeds nutriends through the coronary ciculation in order to provided needed nutrients to the other organs.
pacemaker cells
allow th eheart to generate its own electrical impulses so they ca depolarize on their own.
pulmonary
pumps blood from heart to lungs (right side of the heart)
systemic
pumps blood out of the heart then back to the left side of the heart
coronary
left and right coronary arteries and coronary veins
sumarize how the intrinsic cardiac conduction system works
it inolves pacemaker cells (SA node and AP node). they ccan do it on their own or be triggered. they send their own AP
