Unformatted text preview: heart. c. Sympathetic stimulation leads to an increase in cAMP and phosphorylation of the HCN channel. d. The receptor for noradrenaline is not an ion channel. e. Under resting conditions, parasympathetic input to the heart predominates over sympathetic input. 3. Genetics a. Much of human genetic variation is due to single nucleotide polymorphisms. b. Base substitutions at the third position in a codon are frequently benign. c. In LQTS, K + and Ca 2+ currents can be affected. d. The QT interval corresponds to ventricular depolarization and ventricular repolarization. e. Drugs that activate the M-current may be used to treat epilepsy....
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This note was uploaded on 04/08/2008 for the course BIO 328 taught by Professor Cabot during the Spring '07 term at SUNY Stony Brook.
- Spring '07