Abstract
The dorsal column (DC) system was investigated in the pigeon by electrophysiological and anatomical methods. Field potentials recorded from the dorsal column nuclei (DCN) and evoked by electrical stimulation of cutaneous nerves showed two peaks in the case of wing nerve stimulation and one peak with leg nerve stimulation. Lesions of the DC or the ipsilateral dorsolateral funiculus (DLF) at a high cervical level (C 4) indicate that a main input exists from the wing through the DC and from the leg through the DLF. With small injections of the fluorescent dye Fast blue into parts of the DCN it could be shown that aside from a primary afferent projection a well-developed postsynaptic dorsal column system exists only for the wing and that it takes its origin in the neurons of the lamina IV of the spinal dorsal horn.
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.
