... of synaptic input from the motor network of the inner nerve ring, synaptic input from a subumbrellar nerve net, and electrotonic depolarization from adjacent, active muscle cells. e-mail: [email protected] 4 9 2008 © The Company of Biologists Limited 2008 2008 cnidaria hydrozoa...

... and that the voltage threshold for activation and inactivation of the channel is not determined by the total charge on S4. * Author for correspondence (e-mail: [email protected] ). 18 8 1997 ©The Company of Biologists Limited 1997 Polyorchis penicillatus Hydrozoa Shaker K + channels...

... cnidarian neurones catecholamine Hydrozoa potassium conductance whole-cell recording Polyorchis penicillatus The cnidarians are believed to be the most primitive organisms with a true nervous system and attract considerable attention because of their evolutionary position and relative...