1,25-dihydroxyvitamin D stimulates the synthesis of the TrpV proteins in the small intestine. The TrpV proteins act as:
A. voltage-sensitive Ca++ channels
B. calcium-sensing receptors
C. serum Ca++ transport proteins
D. intracellular Ca++-binding proteins
E. apical membrane Ca++ channels
ANS: E
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A) biparental genes B) a homologous pair C) dominant genes D) the paternal genotype
Which of the following is not required for arousal to occur?
A) There must be sufficient blood hydrostatic pressure. B) The sacral spinal cord must be intact. C) Nitric oxide must be present. D) Sympathetic stimulation of sacral nerves. E) Parasympathetic stimulation of pelvic nerves.
The QRS wave on an electrocardiogram is representative of ventricular repolarization
Indicate whether the statement is true or false