Norepinephrine acts on the heart by ________
A) causing threshold to be reached more quickly
B) blocking the action of calcium
C) causing a decrease in stroke volume
D) decreasing heart contractility
A
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Immediate local responses of the kidney to changes in blood flow to maintain GFR occur via
A) autoregulation. B) countercurrent multiplication. C) hormonal regulation. D) autonomic regulation. E) cephalic reflexes.
Diagnosis of diabetes insipidus is made by performing a:
a. hemoglobin and hematocrit test. b. water restriction test. c. sweat chloride test. d. urine culture.
A factor that does not increase the stability of the hip joint include
A) strong muscular padding. B) tough capsule. C) almost complete bony socket. D) supporting ligaments. E) shallow socket.
Agglutinins are:
A. markers on the surface of red blood cells. B. complexes of antigens and antibodies. C. precursors to clotting factors in the plasma. D. antibodies directed against blood cell antigenic markers.