Electrostimulation and morphologic study of the nerves to the bone marrow of the albino rat

Abstract
The innervation of the bone marrow of the albino rat was investigated by electrostimulation and morphological methods. Stimulation of the lumbar sympathetic trunks resulted in the release of reticulocytes and neutrophils into the circulating blood. The effects of stimulation on other cell types in the bone marrow could not be definitely established. It was concluded that the nerve fibers to the bone marrow were distributed to the arteries. It is postulated that the transmitter substance released at the autonomic nerve endings may have an effect upon the permeability of the venous sinusoids and the mobility of the blood cells in the marrow parenchyma resulting in their release into the circulating blood.

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