Alpha islet cells produce ________, an extremely potent hyperglycemic hormone.
Fill in the blank(s) with the appropriate word(s).
glucagon
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Which factor would reduce the amount of oxygen transfer across the respiratory membrane?
a. a higher partial pressure of oxygen in the atmosphere b. an abnormally high partial pressure of carbon dioxide in the atmosphere c. a reduced partial pressure of carbon dioxide in the atmosphere d. a low pulmonary capillary partial pressure of oxygen e. None of the above
Tetanus of muscles is described as
A. a muscle produces increasing tension as it shortens. B. action potential frequency is high enough that no relaxation of muscle fibers occurs. C. a muscle produces tension, but the length of the muscle is increasing. D. a muscle produces constant tension during contraction. E. a muscle produces an increasing tension during contraction.
which of the following statements is true regarding type O blood? select all that apply.
a) individuals with type O blood are homozygous for this trait b) individuals with type O blood do not produce red blood cells c) it is the rarest blood type in North America d) it is caused by the recessive allele
Which of the following hormones is regulated by the anterior pituitary?
a. parathyroid hormone b. cortisol c. aldosterone d. insulin e. TRH