Histology Flashcards
Renin controls
Blood pressure and blood volume
Components of kidney capsule
Outer layer of fibroblast + collagen
Inner layer of myofibroblast
Cortex and medulla contain
Epithelial tubules, blood vessels and connective tissue
What are renal corpuscles
A functional unit
How do renal corpuscles look
Spherical
Capillary network of renal corpuscles
Glomerulus
Capsule of renal corpuscle
Bowmans’s capsule
Supply of glomerular capillaries
Afferent arteriole
Drainage of glomerular capillaries
Efferent arteriole
What occurs at vascular pole
Afferent and efferent arterioles penetrate and exit Bowman’s capsule
What is opposite to vascular pole
Urinary pole
Where does the proximal convoluted tubule begin
Urinary pole
Medullary rays looking through microscope
Straight
Cortycal labyrinth looking under microscope
Disorganized
Which is the longest section of the nephron
Proximal tubule
Proximal tubule looking under microscope
More cilinder + fuzzy material inside which is the brush border
Distal tubule looking under microscope
More round
Epithelium of nephrons
Low columnar epithelium
Difference between intermediate and proximal tubule
Intermediate tubule lacks the fuzzy material (brush cells)
What cannot be penetrated in the distal tubule
Water
Where do papillary ducts end
Minor calyces
Where are podocytes located
Visceral layer of Bowman’s capsule
What joing the endothelium and podocytes
Glomerular basement membrane
Mesengial cells do
Phagocytosis and endocytosis
Do mesangial cells form part of juxtaglomerular apparatus
Yes
What forms the juxtaglomerular apparatus
Macula densa
Juxtaglomerular cells
Extraglomerular mesangial cells
What does the juxtaglomerular apparatus do
Regulate blood pressure through renin-angiotensin-aldosterone system
Which pass paralel to blood vessels
Loop of henle and collecting tubules
Why is the thick descending not as specialized in absorption
Due to less developed brush border + less lateral processes
Composition of collecting tubules and collecting ducts
Simple epithelium + flattened cells + squamous cuoidal shape
Light cells are
Collecting duct cells
Dark cells are
Intercalated cells
Cells of cortex
Fibroblasts
Peritubular capillaries
Cells at medulla
Myofibroblasts
Barriers that primordial urine has to cross
Endothelial layer
Basement membrane
Podocytes
