Sympathetic impulses to the smooth muscles in the walls of arteries and arterioles produceA. Vasodilation only C. Vasomotor inhibitionB. Vasodilation and vasoconstriction D. Arteriosclerosis Substances exchanged at the capillary level move through the capillary walls byA. Diffusion B. Filtration C. Osmosis D. Active transport In the measurement of blood pressure, the cuff of the sphygmomanometer usually surroundsA. The radial artery C. The brachiocephalic arteryB. The dorsalis pedis artery D. The brachial artery Arterial blood pressure is independent ofA. Blood Volume B. Heart rate C. Blood Viscosity D. Influx of calcium ions Identify the TRUE statement (s). There may be several correct answers,A. An increased cardiac output is reflected in an elevated diastolic pressure.B. An increased cardiac output is reflected in a decreased diastolic pressure.C. An increase in the force of contraction produces an elevated systolic pressure.D. An increase in the force of ventricular contraction produces a decreased diastolic pressure. In the absence of compensations, the stroke volume will decrease whenA. Blood volume increasesB. Venous return increasesC. Contractility increasesD. Arterial blood pressure increases If a vessel were to dilate to twice its previous radius, and if pressure remained constant, blood flow through this vessel wouldA. Increase by a factor of 16 C. Increase by a factor of 2B. Increase by a factor of 4 D. Decrease by a factor of 2
Sympathetic impulses to the smooth muscles in the walls of arteries and arterioles produce
A. Vasodilation only C. Vasomotor inhibition
B. Vasodilation and vasoconstriction D. Arteriosclerosis
Substances exchanged at the capillary level move through the capillary walls by
A. Diffusion B. Filtration C. Osmosis D. Active transport
In the measurement of blood pressure, the cuff of the sphygmomanometer usually surrounds
A. The radial artery C. The brachiocephalic artery
B. The dorsalis pedis artery D. The brachial artery
Arterial blood pressure is independent of
A. Blood Volume B. Heart rate C. Blood Viscosity D. Influx of calcium ions
Identify the TRUE statement (s). There may be several correct answers,
A. An increased cardiac output is reflected in an elevated diastolic pressure.
B. An increased cardiac output is reflected in a decreased diastolic pressure.
C. An increase in the force of contraction produces an elevated systolic pressure.
D. An increase in the force of ventricular contraction produces a decreased diastolic pressure.
In the absence of compensations, the stroke volume will decrease when
A. Blood volume increases
B. Venous return increases
C. Contractility increases
D. Arterial blood pressure increases
If a vessel were to dilate to twice its previous radius, and if pressure remained constant, blood flow through this vessel would
A. Increase by a factor of 16 C. Increase by a factor of 2
B. Increase by a factor of 4 D. Decrease by a factor of 2
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