16.4 Histology: Histology of the Urinary system Flashcards
What vessels are at the boundary between cortex and medulla?
Arcuate vessels
What in the cortex?
Blood vessels, tubules, collecting ducts and renal corpuscles (only in cortex)
What isn’t in Bowman’s space?
Capillaries
Space is continuous with lumen
What is Bowman’s space lined with?
Lined with flattened cells (outer: parietal, inner:podocytes)
What are the two poles in the renal corpuscle?
Vascular pole (capillaries enter)
Urinary pole (tubule drains Bowman’s)
What line Bowman’s capsule?
Squamous parietal cells
What type of epithelium is the proximal tubule lined with?
Cuboidal epithelium
What are between the podocyte processes?
Glycocalyx and slit membranes
What provides the filtration barrier in Bowman’s capsule?
Slit membrane (podocytes) and basal lamina
What features does the proximal tubule have to aid in reabsorption?
Abundant microvilli
Interdigitating cell boundaries
What is the part of the proximal tubule that is located in the cortex?
Convoluted tubule
What is located on the basal membrane of the proximal tubule?
Folded BM, Na/K/ATPases
In the loop of Henle, what is the thin wall comprised of?
Squamous cells
How does the distal tubule differ to the proximal?
Distal lacks microvilli, more mitochondria
Which nephrons are critical for hyperosmotic urine?
Juxtaglomerulary
