A) increases.
B) decreases.
C) increases, then decreases.
D) remains the same.
E) None of these choices is correct.
Correct Answer
verified
Multiple Choice
A) thermoregulation
B) nutrient supply to tissues
C) removal of metabolic waste products from tissues
D) oxygen supply to tissues
E) pH regulation
Correct Answer
verified
Multiple Choice
A) is triggered by an increase in blood flow to the vasomotor center.
B) plays an important role in controlling blood pressure under emergency conditions.
C) is stimulated by a rise in oxygen.
D) is inhibited by a rise in the level of hydrogen ions.
E) plays an important role in regulating blood pressure under normal conditions.
Correct Answer
verified
Multiple Choice
A) simple squamous epithelium of capillaries
B) drain capillary networks
C) regulate blood flow into capillaries
D) do not have fenestrae
E) bypass capillary beds
Correct Answer
verified
Multiple Choice
A) a decrease in the frequency of action potentials from the aortic baroreceptors.
B) increased parasympathetic stimulation of the heart.
C) vasoconstriction of peripheral vessels increasing the blood pressure.
D) increased ADH secretion.
E) increased sympathetic stimulation of the heart.
Correct Answer
verified
Multiple Choice
A) brachial vein
B) basilic vein
C) cephalic vein
D) median cubital vein
Correct Answer
verified
Multiple Choice
A) baroreceptor reflex
B) adrenal medullary mechanism
C) alteration in blood volume
D) chemoreceptor mechanism
Correct Answer
verified
Multiple Choice
A) inferior mesenteric arteries.
B) common iliac arteries.
C) superior mesenteric arteries.
D) femoral arteries.
E) renal arteries.
Correct Answer
verified
Multiple Choice
A) tends to increase if blood viscosity increases.
B) tends to decrease as the diameter of blood vessels decreases.
C) dramatically increases blood flow through the circulatory system.
D) is directly related to flow ( R Flow) .
E) does not occur. If it did, blood would not circulate in the blood vessels.
Correct Answer
verified
Multiple Choice
A) arteries.
B) arterioles.
C) venules.
D) veins.
E) capillaries.
Correct Answer
verified
Multiple Choice
A) renal arteries.
B) suprarenal arteries.
C) lumbar arteries.
D) inferior mesenteric arteries.
Correct Answer
verified
Multiple Choice
A) brachiocephalic artery
B) coronary artery
C) pulmonary artery
D) right subclavian artery
E) right common carotid artery
Correct Answer
verified
Short Answer
Correct Answer
verified
Multiple Choice
A) increased resistance to blood flow
B) increased renin secretion from the kidneys
C) increased aldosterone secretion from the adrenal cortex
D) increased angiotensinogen formation
E) All of these choices is correct.
Correct Answer
verified
Multiple Choice
A) tunica intima.
B) tunica media.
C) tunica adventitia.
D) tunica externa.
E) tunica interna.
Correct Answer
verified
Multiple Choice
A) arteriosclerosis
B) produced by turbulent blood flow
C) blood flow is directly proportional to pressure differences and inversely proportional to resistance
D) as pressure in a vessel decreases, the force holding it open decreases, and the vessel tends to collapse
E) a characteristic of the venous system
Correct Answer
verified
Multiple Choice
A) precapillary sphincter
B) metarteriole
C) thoroughfare channel
D) arterial capillaries
E) venous capillaries
Correct Answer
verified
Short Answer
Correct Answer
verified
Multiple Choice
A) Choose this if the first item is greater than the second item.
B) Choose this if the first item is less than the second item.
C) Choose this if the first item is equal or nearly equal to the second item.
Correct Answer
verified
Multiple Choice
A) Baroreceptors are stimulated.
B) Chemoreceptors are depressed.
C) Renin release is inhibited.
D) Parasympathetic stimulation is increased.
E) Sympathetic stimulation is decreased.
Correct Answer
verified
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