Abstract
The author studied the relation between the stimulation strength of the pressorreceptors located in the gill blood vessels of fish and the character of the reflex responses of the heart, peripheral blood vessels, and respiration in them. It was demonstrated that with mildly stretched gill blood vessels the rhythm of the cardiac contractions increases, while with vigorous stretching it decreases. Since in fish there is heart tone along the vagus nerves, and the cardiac sympathetic innervation is absent, the reflex intensification of the heart rhythm evidently is caused by the active impulse action of the vagus nerve.
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 callDisclaimer: 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.
