Term
| mean arterial pressure (MAP) def |
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Definition
| pressure of moving blood through tissues |
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Term
| mean arterial pressure formula |
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Definition
| = diastolic + (1/3) pulse pressure |
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Term
| mean arterial pressure depends on |
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Definition
metabolic (oxygen, nutrients) factors
myogenic factors (smooth muscle control) |
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Term
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Definition
| pressure systolic- pressure diastolic |
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Term
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Definition
| peak arterial pressure in ventricular systole |
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Term
| systolic pressure range and unit |
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Definition
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Term
| diastolic pressure range and unit |
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Definition
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Term
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Definition
minimum arterial pressure during ventricular diastole
aorta valve close |
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Term
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Definition
| amount of blood arriving at right atrium each minute |
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Term
| Because venous BP is too low for venous return, how is it helped? |
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Definition
the respiratory pump
the muscular grp
layers of smooth muscle |
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Term
| Averaged over a few heartbeats venous return is |
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Definition
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Term
| when you inhale venous pressure (increased/decreased) |
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Definition
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Term
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Definition
| pressure that must be applied to prevent osmotic movement acossa membrane |
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Term
| osmotic pressure increases when |
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Definition
solute concentration
increases |
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Term
| blood colloid osmotic pressure (BCOP) |
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Definition
| is the osmotic created pressure when suspended proteins are unable to capillary walls. |
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Term
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Definition
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Term
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Definition
| increases when lg plasma proteins are outside capillary walls are increased |
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Term
| interstitial colloid osmotic pressure value |
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Definition
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Term
| net colloid osmotic pressure def |
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Definition
diff btwn:
blood colloid osmotic pressure
-
intersitial colloid osmotic pressure |
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Term
| net colloid pressure formula |
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Definition
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Term
| net osmotic pressures causes fluid to move in or out capillary |
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Definition
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Term
| net colloid pressure causes fluid to move in or out of capillary |
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Definition
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Term
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Definition
| pressure created when something is moving through fluid. |
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Term
| hydrostatic pressure causes fluid to move in or out capillary |
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Definition
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Term
| capillary hydrostatic pressure (CHP) def |
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Definition
| pressure within capillary beds |
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Term
interstitial hydrostatic pressure
(IHP) has a value of |
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Definition
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Term
net filtration pressure (NFP)
def |
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Definition
net hydrostatic pressure
-
net osmotic pressure |
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Term
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Definition
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Term
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Definition
blood hydrostatic pressure increased
decreased plasma albumin |
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Term
| net CHP results in fluid loss/gain |
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Definition
| loss of fluid out of capillary |
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Term
| the venous system serves as a |
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Definition
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Term
| large venous networks include |
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Definition
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Term
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Definition
change of pressure across systemic unit
btwn the base of the ascending aorta and the entrance to the right atrium |
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Term
| circulatory pressure average value |
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Definition
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Term
| ciruclatory pressure must overcome |
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Definition
| total peripheral resistance |
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Term
| total peripheral resistance |
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Definition
| resistance of entire of cardiovascular system |
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Term
| total peripheral resistance depends on |
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Definition
vascular resistance
blood viscosity
turbulence |
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Term
| turbulent blood flow is caused by |
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Definition
blood flowing from large to small vessel
atherosclerosis |
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Term
| atherosclerosis and arterosclerosis affect what % of US |
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Definition
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Term
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Definition
| as vessel diameter decreases |
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Term
| a shorter blood vessel has |
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Definition
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Term
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Definition
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Term
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Definition
| weak spot in elastic fibers |
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Term
| an aneursym can eventually lead to |
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Definition
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Term
| if flow is doubled then blood pressure |
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Definition
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Term
| if flow is increased, resistance |
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Definition
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Term
| if flow is increased then what is increased, decreased |
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Definition
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Term
| if resistance is increased then then ---- is decreased |
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Definition
| vessel radius to the 4th power |
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Term
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Definition
| pressure consistently over 100 mmHg |
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Term
| causes of high pulse pressure |
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Definition
atherosclerosis, excerise
which lead to heart disease |
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Term
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Definition
| pressure less than 25% of systolic |
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Term
| causes of low pulse pressure |
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Definition
drop in ventricular stroke volume
blood loss
congestive heart failure
shock |
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Term
| arterial BP is an indicator of |
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Definition
| how much the elastic arteries close to the heart can be stretched and the volume of blood mving through them. |
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Term
| pulsastile pressure is created when |
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Definition
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Term
| histamine,kinins & prostaglandins are examples of __ which cause____ |
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Definition
| inflammatory chemicals; vasodilation |
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Term
| if intravascular pressure is increased then smooth muscle __ which cause vessels to ___ |
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Definition
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Term
| if intravascular pressure is decreased then smooth muscle__ which cause vessels to__ |
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Definition
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Term
| togther myogenic and metabolic effects fcn |
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Definition
| maintain blood flow even if MAP changes |
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Term
| list where pressure is highest to lowest |
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Definition
arteries
arterioles
capillaries
venules
vein |
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Term
| orthostatic hypotension def and caused by |
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Definition
| temp low BP due to overexcertion/inactivity |
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Term
| materials move across capillary walls by |
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Definition
diffusion
filtration
reabsorption |
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Term
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Definition
| materials move from high to low concentration along a conc. gradient |
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Term
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Definition
| hydrostatic pressure to move water and small solutes through a capillary wall |
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Term
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Definition
result of osmotic pressure
(fluid moves into capillary from intersitial fluid) |
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Term
| water, ions,sm molecule such as glucise diffuse through |
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Definition
endothelial cells
or fenestrated capillaries |
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Term
| some ions na,k+,ca2+, diffuse through? |
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Definition
| ion channels in plasma membrane |
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Term
| which capillaries allow free exchange? |
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Definition
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Term
| large, water soluable compounds can diffuse through? |
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Definition
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Term
| lipids, lipid soluable materials such as O2 and CO2 diffuse through |
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Definition
| endothelial plasma membranes |
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Term
| plasma proteins diffuse through |
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Definition
| endothethial lining in sinusoids |
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Term
| the continial movement of fluid through interstial spaces produced by capillary fcn serves to |
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Definition
plasma + intersitial fluid are in communication & mutual exchange
. distrubution of nutrients,hormones, gases
. transport tissue protiens and insoluable lipids that cannot enter bloodstream by capillary walls
.carries bacs& toxins to lymphatic system |
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Term
| fluid moves out of capillary & into interstital fluid at |
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Definition
| arterial end of capillary |
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Term
| fluid moves in capillary & out of interstial fluid at |
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Definition
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Term
| the venous end of a capillary is also the |
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Definition
| transition pt btwn filtration & absorption |
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Term
| do capillaries filter or absorb more |
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Definition
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Term
| excess fluid which was filtered by capillaries go to |
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Definition
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Term
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Definition
swelling of tissues with interstial fluid;
fluid out of blood to tissues |
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Term
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Definition
increased BCOP
increased capillary permabilty
high blood pressure |
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Term
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Definition
| any condition where blood vessels are not filled and/or blood cannot circulate normally |
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Term
| blood flow through tissues is called |
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Definition
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Term
| tissue perfusion is affected by |
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Definition
cardiac output
peripheral resistance (dilation/constriction)
blood pressure |
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