Abstract
The present author has observed that two kinds of secretory cells can be demonstrated in the adrenal medulla of the rat, the cat, the dog, the mouse and the hamster (Eränkö, 1951 a, b, 1952, 1954 b, 1955). After fixation in formalin, some cell groups, called in the following description medullary islets, exhibit a bright green fluorescence in ultraviolet light, the other medullary cells fluorescing but faintly. The relative amounts of islet tissue and noradrenaline in the adrenal medulla vary in a parallel manner in different species. Thus, e. g., much islet tissue and a high proportion of noradrenaline is seen in the adrenal medulla of the cat; in the adrenal medulla of the rat, on the other hand, the islet content is low, and the amount of noradrenaline is much smaller than the adrenaline content (Eränkö, 1952, 1954 b, 1955).
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 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.
