11. Internal Parts of Kidney cortex - outer granulated layer medulla - radially striated or lined layer renal pelvis – inner space or cavity conyinous with the ureter
12. Structure of the NephronRenal corpuscle or corpuscles of malphigii. glomerulus - composed of several looped capillary vessels which connect afferent arteriole (entry of blood) with the efferent arteriole (exit of blood). Bowman’s capsule – enclosed the glomerulu.
13. Renal tubules capsule– expanded asBowman’s capsule enclosing the glomerulus Tubular secretion- molecules (uric acid, creatinine, ammonia) from the blood moved into the distal convoluted tubule through active transport.
14. 2.Reabsorption of water - returns by osmosis following active reabsorption of salts along the length of the nephron and notably at the loop of Henle and collecting duct. 3.Excretion - urines formed and goes out of the kidney through the pelvis and ureter going into the urinary blader for tempory storage.
15.
16. 1.Proximal convoluted portion- connected to the capsule, about 14mm in the length and 60 µmin diameters. 2. Loop of Henle- consisting of two straight (ascending and descending) limbs running parallel to each other 3. Distal convoluted portion- short and much convoluted leading to a short, arched connecting portion, which empties into a straight collecting duct leading to the renal pelvis
17. Steps of Urine Formation Pressure filtration Small molecules (water, glucose, amino acids, salts, urea, uric acids) from the glomerulus were forced by the blood into the Bowman’s capsule. Selective Reabsorption Molecules(water, amino acids, salts) return to the blood at the proximal convoluted tubule through diffusion and transport.
