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30 terms

Ch 20 Testing your recall and T&F

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a metarteriole
Blood normally flows into a capillary bed from ____
fenestrated capillaries
Plasma solutes enter the tissue fluid most easily from ______
an elastic tunica media
A blood vessel adapted to withstand a high pulse pressure would be expected to have ______
histamine
The substance most likely to cause a rapid drop in blood pressure
100 mm Hg
A person with systolic blood pressure of 130 mm Hg and a diastolic pressure of 85 mm Hg would have a mean arterial pressure of about ____
viscosity increases
The velocity of blood flow decreases if _______
have larger diameters
Blood flows faster in a venule that in a capillary because venules ______
colloid osmotic pressure of the blood
In a case where interstital hydrostatic pressure is negative, the onlyu force causing capillaries to reabsorb fluid is ______
the hepatic portal system
Intestinal blood flows to the liver by way of _______
internal jugular
The brain recieves blood from all of the following vessels except the _____ artery or vein.
systolic, diastolic
The highest arterial blood pressure attained during ventricular contraction is called _____ pressure. The lowest attained during ventricular relaxation is called _____ pressure.
continous capillaries
The capillaries of skeletal muscles are of the structural type called _______.
anaphylactic
_______ shock occurs as a result of exposure to an antigen to which one is hypersensative.
thoracic pump
The role of breathing in venous return is called the _________.
oncotic pressure
The difference between the colloid osmotic pressure of blood and that of the tissue fluid is called ________.
transcytosis
Movement across the capillary endothelium by the uptake and release of fluid droplets is called _______
sympathetic
All efferent fibers of the vasomotor center belong to the ______ divison of the autonomic nervous system.
baroreceptors
The pressure sensors in the major arteries near the head are called _______
the arterial circle
Most of the blood supply to the brain comes from a ring of arterial anastomoses called _____
basilic, cephalic
The major superficial veins of the arm are the _____ on the medial side and ____ on the lateral side.
True
In some circulatory pathways, blood can get from an artery to a vein with out going through capillaries
True
In some cases, a blood cell may pass through two capillary beds ina single trip from left ventricle to right atrium
True
The body;s longest blood vessel is the great saphenous vein.
False: Some veins have valves but arteries do not.
Arteries have a series of valves that ensure a one-way flow of blood.
False: By the formula F & r4, the flow increases 16-fold
If the radius of a blood vessel doubles and all other factors remain the same blood flow through that vessel doubles
True
The femoral triangle is bordered by the inguinal ligament, sartorius muscle, and adductor longus muscle.
True
The lungs recieve both pulmonary and systemic blood
False: The capillaries normally reabsorb about 85% of the fluid they filter; the rest is absorbed by the lymphatic system.
If blood capillaries fail to reabsorb all the fluid they emit, edema will occur.
False: An aneurysm is a weak blunging vessel that MAY rupture.
An aneurysm is a ruptured blood vessel.
False: The response to falling blood pressure is a corrective vasoconstriction.
In the baroreflex, a drop in arterial blood pressure triggers a corrective vasodialation of the systemic blood vessels.