A Compend of Histology (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ...that the Papillary Ducts may have a diameter of 200 microns. The blood-vessels have a characteristic distribution. The Renal Artery passes through the Hilus and enters the Sinus, where it divides into a number of branches, of which the greater number supply the anterior pyramids, and the anterior portions of the posterior pyramids. The branches that go to the anterior pyramids carry the greater part of this blood. The rest of the kidney is supplied by the posterior branches. The branch that supplies each pole, derived from the anterior division, divides into an'.erior, middle and pos V10. G2.---section Of Injected Kidney Of Guinba-pig. 1. Interlobular (cortical) artery; 2. afferent vessel; 3. efferent vessel; 4. capillary network in medullary ray: 5. capillary network in labyrinth; 6. interlobular (cortical) vein (Stdhr's Histology). terior branches, which are in no way united. The trunks pass up through the columns of Bertini, where small branches are given off to the vessels and tissues, as the InTerlobar Branches. These branches pass to the boundary zone, where they arch between the cortex and medulla, forming the Arterial Arches, or Arcade. From the cortical side of the arch, the Cortical, or Interlobular, arteries are sent towards the capsule; from these, small arterioles, Afferent, pass to the Malpighian corpuscles, enter and form several smaller branches, each of which breaks into a capillary tuft From this, it will be seen that the Malpighian tuft consists of several bunches of capillaries. Each capillary group is separate, and the vessels unite to form arterioles that leave the tuft as a single vessel, the Efferent arteriole. The blood is still arterial. The Efferent arterioles soon form Dense Plexuses Of Capillaries around the...