Abstract
1. 1. The potassium contracture in the anterior byssus retractor muscle of Mytilus edulis relaxed spontaneously, and the relaxation was accelerated by 5-HT (10 −6 M), but the contractile activation and inactivation was not affected significantly. 2. 2. By reducing [Ca] 0, the “activation curve” was shifted downward at higher [K] 0, and the “inactivation curve” was shifted toward lower [K] 0 and the rate of inactivation was increased. 3. 3. The steady-state inactivation was maintained for at least 2 hr without complete inactivation. 4. 4. The half-inactivation time was dependent on [K] 0, while the half-relaxation time in the contracture induced by conditioning K solutions was not.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Comparative Biochemistry and Physiology -- Part A: Physiology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
