Reflexes function in
A. removing the body from painful stimuli.
B. keeping the body from falling.
C. maintaining blood pressure.
D. maintaining blood CO2 levels.
E. All of these choices are correct.
E
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If the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells, ________
A) contractions would last as long as the refractory period B) tetanic contractions might occur, which would stop the heart's pumping action C) pacemaker cells would cease to spontaneously depolarize D) it would be much longer before cardiac cells could respond to a second stimulation
The Bowman's capsule and glomerulus make up the
A) loop of Henle. B) renal papilla. C) renal corpuscle. D) collecting system. E) renal pyramid.
If you mixed a person's red blood cells with anti-B antibodies, and the red blood cells agglutinated, what could you conclude?
A. That the person's blood is Rh+ B. That the person has type AB blood C. That the person has type B blood D. That the person's red blood cell membranes contain antigen B E. That the person's red blood cell membranes contain antigen A
Organs of the urinary system include the following
a) two kidneys, two ureters, one urinary bladder, two urethras b) two kidneys, two ureters, one urinary bladder, one urethra c) two kidneys, one ureter, one urinary bladder, two urethra d) one kidney, two ureters, one urinary bladder, two urethras