AP CH 18 DSM 18.4 - 18.5

edema

An excess amount of water in the interstitial fluid is known as: normotensive vasoconstriction hypotension edema

hydrostatic pressure

Blood pressure is equivalent to: oncotic pressure colloid osmotic pressure hydrostatic pressure net filtration pressure

precapillary sphincters

Blood flow through the capillary bed is regulated by: precapillary sphincters tissue perfusion thoroughfare channel metarteriole

Water is pushed out of the capillary by filtration.

In which direction will water move when hydrostatic pressure exceeds colloid osmotic pressure at the arteriolar end of a capillary? There is no net movement of water. Water is pushed out of the capillary by filtration. Water is pulled into the capillary by absorption. Water is pushed into the capillary by absorption.

muscular arteries

Large vessels with all three tunics and a well-developed tunica media are called __________: arterioles veins venules muscular arteries

Transcytosis

Large, lipid-insoluble molecules cross capillary walls by: diffusion transcytosis fenestrations sinusoids

net hydrostatic pressure minus the net colloid osmotic pressure

Net filtration pressure (NFP) is equal to the: capillary osmotic pressure minus interstitial osmotic pressure. net hydrostatic pressure minus the net colloid osmotic pressure. osmotic pressure in the tissue minus the hydrostatic pressure in the blood. colloid osmotic pressure in the blood divided by resistance in the tissue.

fenestrations

Small solutes can pass through small pores in some capillaries known as: continuous capillaries fenestrations sinusoids transcytosis

Oxygen

The main local autoregulatory mechanism of cardiac muscle tissue is: arbon dioxide oxygen norepinephrine epinephrine

Blood colloid osmotic pressure (BCOP)

The most important force driving reabsorption at the venous end of a capillary is: interstitial hydrostatic pressure blood colloid osmotic pressure filtration blood hydrostatic pressure

systole; diastole

Tissue perfusion in the heart decreases during ventricular ______ and increases during ventricular ______: vasodilation; vasoconstriction systole; diastole diastole; systole relaxation; contraction

autoregulation

Tissue perfusion is largely controlled by _________ to ensure that blood flow meets the cells' needs: autoregulation fenestrations resistance microcirculation

Rising arteriolar pressure

Under what conditions will the myogenic mechanism slow blood flow into a capillary bed? Rising carbon dioxide levels Rising hydrogen ion levels Rising arteriolar pressure Dropping arteriole pressure

blood hydrostatic pressure

Water in the blood exerts pressure on the walls of capillaries, generating: net filtration pressure blood hydrostatic pressure edema colloid osmotic pressure

95 mm Hg

What is the average value for mean arterial pressure (MAP)? 120 mm Hg 150 mm Hg 95 mm Hg 80 mm Hg

Sinusoidal capillaries

What type of capillaries have large pores within their endothelial cells and are the leakiest? Sinusoidal capillaries Closed capillaries Fenestrated capillaries Continuous capillaries

colloid osmotic pressure

Which pressure remains the same along the length of a capillary? Capillary hydrostatic pressure Interstitial fluid osmotic pressure Interstitial fluid hydrostatic pressure Colloid osmotic pressure