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BIO 211: Exam 1: Chapter 20 Questions
Chapter 20 Questions and Answers
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Biology
02/19/2011

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Term
Blood normally flows into a capillary bed from
Definition
a metarteriole
Term
Plama solutes enter the tissue fluid most easily from
Definition
fenestrated capillaries
Term
A blood vessel adapted to withstand a high pulse pressure would be expected to have
Definition
an elastic tunica media
Term
The substance most likely to cause a rapid drop in blood pressure is
Definition
histamine
Term
The velocity of blood flow decreases if
Definition
viscosity increases
Term
Blood flows faster in a venule than in a capillary because venules
Definition
have larger diameters
Term
The brain receives blood from all of the following vessels except the _____ artery or vein.
Definition
internal jugular
Term
The highest arterial blood pressure attained during ventricular contraction is called _____ pressure. The lowest attained during ventricular relaxation is called _____ pressure.
Definition
systolic, diastolic
Term
The difference between the colloid osmotic pressure of blood and that of the tissue fluid is called ______
Definition
oncotic pressure
Term
Movement across the capillary endothelium by the uptake and release of fluid droplets is called _____
Definition
transcytosis
Term
The pressure sensors in the major arteries near the head are called _____
Definition
baroreceptors
Term
Most of the blood supply to the brain comes from a ring of arterial anastomoses called _____
Definition
the arterial cicle