. The American journal of anatomy. Tnpathetic ganglia, and the latter are separated from the ad-renal only by its capsule. 358 The Histogenesis of the Adrenal in the Pitr In ])igs of from ;>(» to o.) unn. a new eknient is added to the beneath the capsule there are seen collections of small cells,the nuclei of which stain deeply and are surrounded by very scantycytoplasm. In thick sections (Fig. 5) these are seen to be arrangedaround the cortical portion in a mantle-like layer, from which offshootsare proceeding inward between the rows of cortical cells. Towards thelateral
. The American journal of anatomy. Tnpathetic ganglia, and the latter are separated from the ad-renal only by its capsule. 358 The Histogenesis of the Adrenal in the Pitr In ])igs of from ;>(» to o.) unn. a new eknient is added to the beneath the capsule there are seen collections of small cells,the nuclei of which stain deeply and are surrounded by very scantycytoplasm. In thick sections (Fig. 5) these are seen to be arrangedaround the cortical portion in a mantle-like layer, from which offshootsare proceeding inward between the rows of cortical cells. Towards thelateral aspect of the adrenal this mantle becomes very thin, or is evenentirely lacking; but along its dorso-medial surface it is thick, and its FiG. 5. Pig 35 mm. Leitz obj. o, oc. 4. S. g., anlages of sympathetic ganglia;Man., mantle layer of cells; X, columns of cells connecting sympathetic anlageswith mantle; ^or., cortical portion of adrenal; C., isolated portion of cortex; Cap.,capsule of adrenal. Section 25 mm. mikrons thick. prolongations into the cortex are numerous and extensive. In this lat-ter region the capsule of the adrenal adjacent to the ganglia is muchbroken up, or even wanting over consideralile areas; so that in thesesituations there is nothing between the ganglia and the cortical portionof the adrenal except the mantle of cells previously mentioned. Throughthe gaps in the capsule cellular strands, often of considerable size, con-nect the mantle on the inside with the ganglia on the outside. The con-nection is sometimes so intimate that what is seen in one section as a K. H. Whitehead 359 distinct ganglion may a]i])ear in another as an integral part of the man-tle. The anatomical similarity of the cells com
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1901
