These are pictures of specimens specially stained to show nerve fibers (Bodian's protargol method). The upper of the two is a control. Three massive nerves were conspicuous under the microscope but did not photograph well and are shown as drawings.The lower picture is a transplant, innervated by spinal cord, with a completely unpatterned mass of muscle around the radial and ulnar cartilages; with no orienting ulnacarpalis, it is impossible to tell which is which in cross section. Nerves were not organized into bundles here but were scattered randomly (á là shotgun) throughout the muscle.
Among transplants, the impression was that growing spinal cord fibers detonated myogenesis among cells ordinarily slated to become fascia and other fibrous connective tissue elements.
Small arrows point to nerves.
Nerves are not organized into bundles among transplants but instead were arranged without fasciculation throughout the muscle.
Drawings by M. Diedrick, Medical Illustrator