Physiology - Capillaries Flashcards
which of these best describes function of the capillaries?
a. exchange between ICF and ECF
b. exchange between blood and interstitial fluid
c. exchange between blood and extracellular fluid
d. exchange between plasma and interstitial fluid
b.exchange between blood and interstitial fluid
the vascular shunt is made up of..
a. the precapillary sphincters and the true capillaries
b. the metaarteriole and the true capillaries
c. the metaarteriole, the true capillaries and the thoroughfare channel
d. the thoroughfare channel and the true capillaries
c. the metaarteriole, the true capillaries and the thoroughfare channel
which is closer to the postcapillary venule of a capillary bed?
a. thoroughfare channel
b. precapillary sphincters
c. metaarteriole
d. true capillaries
a.thoroughfare channel
which type of capillary is found in the muscle , skin, lungs and CNS?
a. continuous
b. discontinuous
c. fenestrated
a.continuous
which type of capillary is found in the exocrine and endocrine glands, renal glomeruli and intestinal mucosa ?
a. continuous
b. discontinuous
c. fenestrated
c.fenestrated
which type of capillary is found in the liver, spleen and bone marrow ?
a. continuous
b. discontinuous
c. fenestrated
b.discontinuous
which of these types of transport regulates fluid volume?
a. vesicular
b. diffusion
c. bulk flow
c.bulk flow
which is the most significant way substances leave and enter the capillary?
a. diffusion
b. osmosis
c. active transport
d. bulk flow
e. vesicular transport
a.diffusion
what do diffusion and vesicular transport in and out of the capillary do?
a. regulate fluid volume
b. regulate fluid composition
b.regulate fluid composition
ultrafiltration and resorption (starling forces) make up which mode of transport across the capillary membrane?
a. vesicular
b. bulk flow
c. ventilation
d. lymph flow
b.bulk flow
what do plasma proteins contribute to?
a. plasma hydrostatic pressure
b. plasma oncotic pressure
b.plasma oncotic pressure
what happens to the capillary pressure in tissue oedema?
b. increase
c. decrease
c.decrease
which of these best describes oedema ?
a. excess fluid accumulation in the interstitium
b. excess fluid accumultion in the plasma
c. excess fluid accumulation in the extra cellular fluid
a.excess fluid accumulation in the interstitium
due to alteration of starling forces
congestive heart failure leads to an increase in pressure in which vessel to lead to oedema?
a,artery
b. vein
c. capillary
b.vein
which of these does not cause oedema through an increase of capillary pressure?
a. heart failure
b. vasodilation
c. venous clot/tumour
d. liver disease
d. liver disease
