BIOL 1410 Lecture Notes - Lecture 16: Renal Papilla, Renal Fascia, Renal Pyramids
15 Dec 2015
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Structures: [25. 1: 2 kidneys, 2 ureters, 1 urinary bladder, 1 urethra. Ion concentrations: eliminates wastes (nitrogenous wastes) E. g. urea, uric acid, hormones, drugs: urinary system: structures, kidneys: [25. 3] External anatomy: retroperitoneal, right lower than left, supported & protected by 3 layers of ct, fibrous capsule (completely encapsulates kidney, perirenal fat capsule (cushions any blows, renal fascia, renal hilus (hilum): Entry point of: renal artery (superior, renal vein (inferior, ureter, nerves. Internal anatomy:[25. 4][25. 5: renal cortex (superficial, renal medulla. Contains: i. ii. renal pyramids renal columns. Site of blood filtration (first step in urine formation) 2) inner = podocytes wrapped around glomerular capillaries: filtration membrane. Simple squamous with pores (= fenestrations: basement membranes, podocytes (of bowman"s capsule) Projections cling to glomerulus: renal tubules. 4 parts:[25. 6: proximal convoluted tubule (pct) In medulla: distal convoluted tubule (dct) Connect nephron to ureter (via calyces/renal pelvis) 2 types of nephrons:[25. 8][25. 4: cortical (85%) Renal corpuscles near kidney surface in cortex.
