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Histology

Urinary System

QuestionAnswer
this is the connective tissue covering the outer surface of the kidney capsule
the number of lobes in the kidney equals this the number of medullary pyramids
the colors of the cortex and medulla are due to this blood supply
the cortex of the kidney is composed of this renal corpuscle, convoluted and straight tubules of the nephron, the collecting tubules, collecting ducts, and vascular supply
medulla of the kidney is characterized by this straight tubules, collecting ducts, and a special capillary network called the vasa recta.
the medullary rays contain this straight tubules and collecting ducts
this structure filters the blood to get waste products out and keeps large molecules in renal corpuscle
podocytes are attached to this the basement membrane of the endothelial cells of the glomerulus
these are located between the peduicles and are spaces filtration slits that prevent large molecules in the blood from getting into the urinary space
describe minimal change disease it's a nephrotic syndrome in which protein is found in the urine. This is due to the effacement of foot processes of podocytes.
describe good pasteures disease it is a rapidly progressive glomerulonephritis in which antibodies are peoduced against type four collagen in the GBM
this structure has a simple cuboidal epithelium and a star shaped lumen and a larger cell diameter PCT
this structure is one third as long as the PCT has a clean lumen and looks like a cheerio. Reabsorption of bicarb and sodium takes place here. DCT
what cells are a part of the juxtaglomerular apparatus? macula densa, juxtaglomerular cells, and extraglomerular mesagnial cells.
these are salt sensing cells in the juxtaglomerular apparatus macula densa
what are the two distinct cell types in the collecting tubules and ducts principal cells and intercalated cells
what do principal cells in the collecting ducts do? they contain ADH regulated water channels, AQP-2 channels, responsible for water permeability
what do intercalated cells do? secrete hydrogen ions, or bicarbonate. they have dark cytoplasm
describe the flow of urine through the area cribrosa minor calyx, major calyx, renal pelvis, ureter, renal bladder, voided through the urethra
what type of epithelium lines the excretory passages from the kidney? transitional epithelium
describe the thickness of the epithelium in the urethra compared to the bladder it goes from about two cell layer thickness in the minor calyx to about five cell layer thickness in the ureter and about 6+ cell layer thickness in the bladder (a distended bladder has three true layers).
describe the microanatomical structure of the ureter transitional epithelium with a star shaped lumen.
the trigone of the bladder develops from this embryological structure mesonephric duct
this urethra extends from the neck of the bladder through the prostate prostatic urethra
Created by: aferdo01