The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . e readily demonstrated in themesentery of the cat (fig. 8). Eachcorpixscle consists of 40 to 50lamell* or coats, like the folds ofan onion, thinner and closer to-gether on approaching the lamella is formed of an elasticmaterial mixed with delicate con-nective tissue fibres, and the innersurface of each is lined by a singlecontinuous layer of endothelialcells. A doub


The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . e readily demonstrated in themesentery of the cat (fig. 8). Eachcorpixscle consists of 40 to 50lamell* or coats, like the folds ofan onion, thinner and closer to-gether on approaching the lamella is formed of an elasticmaterial mixed with delicate con-nective tissue fibres, and the innersurface of each is lined by a singlecontinuous layer of endothelialcells. A double-contoured nervefibre passes to each. The whitesubstance of Schwann becomescontinuous with the lamellae, whilst p,^ er Pacini-. Cor-the axis cylinder passes into the puscie. o, stain: (Mieivo-fibro . 1 , , ^ n 1 u enterlne It; c, d. connective body, and ends in a-small knob or tissue envelope: <?. axwcyiin-in a plexils. Sometimes a blood- <icr. »itiiitaenddki(iedat/.vessel also penetrates the Pacinian .body, entering alongwith the nerve. Such bodies are found in the subcutaneoustissue on the nerves of the fingers and toes, near joints,attached to the Dorves of tlie abdominal plexuses of the. I sympathetic, on the coccygeal gland, on the dorsum of thejienis and clitoris, in the meso-colon,-ia the course of theintercostal and periosteal nerves, and in the capsules oflymphatic glands (William Stirling). Pkysiology of Touch in Man.—Such are the special end-organs of touch. It has also been ascertained that manysensory nerves end in a plexus or network, the ultimatefibrils being connected with the cells of the particulartissue in which they are found. Thus they exi.^l in thecornea of the eye, and at the junctions of tendons withmuscles. I n the latter situation flattened end (lakes orplates and elongated oval end-bulbs have also beenfound (Sachs, Rolletl, Oolgi) A consideration of thesevarious types of structure show that they facilitate intermittent pressure b


Size: 965px × 2590px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892