Normal Histology (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...capsule surrounding the glomerulus; 2, neck of the capsule and beginning of the uriniferous tubule; 3, first convoluted tubule; 4, spiral portion of the first convoluted tubule in the medullary ray; 5, descending limb of Henle's tube; 6, Henle's loop; 7, 8, 9, ascending limb of Henle's tube; 10, irregular transition to the second convoluted tubule; 11, second convoluted tubule; 12, transition from second convoluted tubule to the collecting tubule: 13, 14, collecting tubule, joined below by others to form the excretory duct, which opens at the apex of the pyramid. tubule, it will be best to complete this general sketch by considering the course of the bloodvessels. As has already been said, the vessels enter the kidney between the calices and pyramids and are distributed in brandies that lie Fig. 140. parallel to the bases of the latter, and, therefore, to the convex surface of the organ, and are situated in the boundary-zone. The arterial branches in this location form the "arterial arcade." From this arcade perpendicular branches, the "interlobular arteries," pass toward the capsule, taking a straight course through the labyrinth between the medullary rays. In this course they give oif branches, the "afferent vessels," which go to the Malpighian bodies. Fig. 141. Fia 140.--Diagram showing the course of the bloodvessels within the kidney. (Ludwig.) a, interlobular artery; b, interlobular vein; c, Malpighian body, with the afferent vessel entering it from the interlobular artery, and the efferent vessel leaving it to take part in the formation of the capillary plexus between the renal tubules; d, vena stellata; e, arteriae recta?;/, vena; rectal; g, capillary plexus around the mouths of the excretory ducts. Fkj. 141.--Injected g...