Kidney Histology

Question 1

Capsule

Answer 1

-fibrous connective tissue capsule (kidney is retroperitoneal)

Question 2

Medullary ray

Answer 2

-referring to destination
-includes collecting ducts and thin tubules of loop of Henle that appear together as a thin ribbon area. Appear this way because of no brush border and they are very thin

Question 3

Main component of Cortex

Answer 3

-contain renal corpuscles
-will also see medullary rays

Question 4

Glomerulus

Answer 4

-Macula densa located near glomerulus/vascular pole (part of DCT that is returning and will eventually go through collecting ducts)
-Juxtaglomerular cells (JGA) near macula densa
-proximal convoluted tubule near urinary pole of glomerulus

Question 5

Components of outer stripe of outer medulla

Answer 5

-PST (thicker)
-thin tubules of loop
-distal straight Tubules (DST)
-collecting ducts
-vasa recta

Question 6

Components of Inner stripe of outer medulla

Answer 6

-thin tubules of loop
-DST
- collecting ducts
-vasa recta

Question 7

Components of Inner medulla

Answer 7

-collecting ducts
-bottom of thin loops of Henle (the turn)
-vasa recta

Question 8

Convoluted vs. straight tubules

Answer 8

**same thing, but different depending on location
-Convoluted: occur near glomerulus
-Straight: occur away from glomerulus

Question 9

Distal straight tubule vs. proximal straight tubule

Answer 9

-Distal: lumen present, no brush border
-Proximal: less lumen present, brush border present