sheath of Key and Retzius
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Key-Retzius sheath foramen — Key Ret·zi·us sheath, foramen (keґ retґze oos) [Ernst Axel Henrik Key, Swedish physician, 1832–1901; Magnus Gustaf Retzius, Swedish histologist, 1842–1919] see sheath of Key and Retzius, under sheath, and see apertura lateralis ventriculi… … Medical dictionary
sheath — 1. Any enveloping structure, such as the membranous covering of a muscle, nerve, or blood vessel. Any sheathlike structure. SYN: vagina (1). 2. The prepuce of male animals, especially of the horse. 3. A specially designed tu … Medical dictionary
Key — Charles Alston, English physician, 1793–1849. Ernst A.H., Swedish anatomist and physician, 1832–1901. See foramen of K. Retzius, sheath of K. and Retzius. * * * (ke) 1. an instrument for opening a lock, or a device similar in appearance or… … Medical dictionary
Retzius — Magnus G., Swedish anatomist and anthropologist, 1842–1919. See R. striae, under stria, lines of R., under line, foramen of R., calcification lines of R., under line, foramen of Key R., sheath of Key and R.. Anders A., Swedish anatomist and… … Medical dictionary
endoneurium — The innermost connective tissue supportive structure of nerve trunks, that surrounds both myelinated and unmyelinated nerve fibers; consists principally of ground substance, collagen, and fibroblasts; with the perineurium and epineurium,… … Medical dictionary
Vein — A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark. Veins are part of the afferent wing of the circulatory system… … Medical dictionary
