When blood Ca2+ levels fall below normal, in what ways do the kidneys help restore them toward normal?
A. by increasing 1,25-dihydroxyvitamin D3 formation, decreasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
B. by increasing 1,25-dihydroxyvitamin D3 formation, increasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
C. by decreasing 1,25-dihydroxyvitamin D3 formation, increasing tubular phosphate reabsorption, and increasing tubular Ca2+ reabsorption
D. Increasing 1,25-dihydroxyvitamin D3 formation and increasing secretion of parathyroid hormone
E. by increasing renal secretion of parathyroid hormone and increasing bone resorption
A
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Maria is a patient in the ward who was recently in a motor vehicle accident. Her injuries are causing her a lot of pain, and as a consequence to the morphine she's been given, her respiratory rate is quite low. Which of the following is likely to be TRUE?
A. The level of H+ ions in her blood has increased. B. The pH of her blood has increased. C. The alveolar O2 level has increased toward atmospheric levels. D. The level of O2 in her blood has increased. E. The alveolar CO2 has decreased to near atmospheric levels.
A photopsin is a protein
A. of a photopigment within cone photoreceptors. B. of a photopigment within rod photoreceptors. C. that is derived from Vitamin E. D. that allows ions to flow into rod and cone photoreceptors.
Arrange the following events involving lipids in the correct order.(1) Absorption of lipids(2) Emulsification(3) Micelle formation(4) Digestion of lipids
A. 2, 4, 3, 1 B. 4, 1, 2, 3 C. 2, 4, 1, 3 D. 1, 2, 3, 4 E. 3, 4, 2, 1
In which of the following skin layers would a subcutaneous injection be administered?
A. Stratum basale B. Stratum spinosum C. Hypodermis D. Dermis E. Stratum corneum