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Signal Transduction by Extracellular Receptors (77.0K)
Membrane Bound Receptors G Proteins and Ca2+ Channels (825.0K)
Membrane-Bound Receptors that Activate G Proteins (880.0K)
Receptors Linked to a Channel Protein (413.0K)
Intracellular Receptor Model (348.0K)
How Intracellular Receptors Regulate Gene Transcription (408.0K)
Second Messengers: cAMP (333.0K)
Action of Epinephrine on a Liver Cell (650.0K)
Signal Amplification (487.0K)
Second Messengers the cAMP and Ca++ Pathways (581.0K)