#2heart Flashcards
(25 cards)
pulmonary arteries
cary deoxygenated to lungs
systemic pump
receives oxygenated blood frm pulmonary vein & pump rest of body
systemic arteries
pump oxygenated blood to all system body
systemic vein
return. deoxygenated blood to RA
vein vs arteries
vein carry __
arteries carry
vein to heart
arteries away from heart
pulmonary circuit pressure
systemic pressure
low
high -systemic
gas exchange happen at
systemic capillaries
pulmonary capillaries
says the heart flow in order
normal blood volume pump out
5 L /1min
arteries facts
oxygenated
thick
high pressure
narrow
no valve
pulse present
round
veins facts
outnumber arteries
larger lumens
BLOOD RESERVOIR
thinner walls
less elastic fibers & smc
has valve
irregular
low pressure
blood pressure wheee its highest at & lowest
outward force that blood exert on wall of blood vessel
highest at systemic arteries
lowest systemic vein
systolic
ur blood contract highest pressure 120mmhg
diastolic pressure
at rest lowest pressure 80mmg
pulse pressure
systolic - diastolic pressure =40mmhg
MAP =arterial pressure
average pressure pushing blood in tissue
average pressure in arterial circuit
3 factor determine BP
peripheral resistance
CARDIAC OUPUT
BLOOD VOLUME- influenced by water loss
diameter in all
arteries largest diameter
capillaries smallest
vein -smaller
blood flow
fastest in arteries
slowest at capillaries
medium in vein
layers around heart
fibrous pericardium outermost layer
serous pericardium serous fluid ( parietal pericardium ) pericardial cavity there
visceral pericardium (epicardium on organs )
heart wall layers
epicardium/ outmost layer
myocardium - contain cardiac cell
endocardium - innermost layer w endothelial cell
function of blood
distributing gasses -transport ions nutrients hormones waste
immune functions -
blood clotting
maintaining body temp
acid base balance 7.35 7.45
& BP
excretion for erythrocytes happen where
in livrr
blood count& function rbc
erythrocytes/rbc -cary oxygen 5million
hematocrit 37-54
less than anemia more than polycythemia
hemoglobin 12 to 18 /100c
less than 12 anemia more than polycythemia
