chapter 14 Flashcards
what is blood viscosity
how sticky the blood is
what does vasodilation vs vasoconstriction do to the flow
Vasodilation increase radius –> increases flow
Vasoconstriction decresease radius –> lowers flow
what does MAP stand foe
mean arterial pressure- average pressure in arterial system
what does TPR stand for
TPR = total peripheral resistance- combined resistance of all blood vessels within the systemic circuit
what lines the inside of blood vessels
endothelial cells
where does the diastolic pressure come from
the recoil of arteries
what can arterioles do that makes them different
can change radius
whats the difference between Active hyperemia, Reactive hyperemia, and Myogenic response
Active hyperemia
- increased blood flow in response to increase metabolic activity, too much co2 so the blood flow increases to bring more oxygen
Reactive hyperemia
- increased blood flow in response to a previous reduction of blood flow, there was a blockage
Myogenic response
- change in vascular resistance in response to stretch of blood vessels, when it gets stretched it contracts
whats the difference between Filtration and Absorption
Filtration
- moving out of capillaries into interstitial fluid
Absorption
- moving in of capillarys from interstitial fluid
what is hydrostatic pressure and what are the abbreviations for the pressure in the capillaries vs in the instistal fluid
pressure of the fluid
Pcap in capilary, PIF in instistal fuild
what is oncotic pressure and what are the abbreviations for the pressure in the capillaries vs in the instistal fluid
fluid is gonna go where theres more proteins
(pie) cap , (pie) IF
where is most of the blood in the body
blood is mostly in veins
what does a blocked lymphatic vessel cause
lots of swelling
what is pulmonary edema
Heart failure, effects hydrostatic pressure
whats the difference between Proteinuria and Protein malnutrition
Proteinuria
protein in urine
Protein malnutrition (Kwashiorkor)
protein malnutrition
what do baroreceptors tell us and would it send more or less action potentials
meachincal receptor to tell us about pressure
increased pressure = sends more action potentail
what do kidneys respond to to change blood volume for long term management
vasopressin (ADH) and Angiotensin II
