Histology of UG system Flashcards
Two layers of capsule of kidney
Outer layer of fibroblasts and collagen fibres
Inner layer of myofibroblasts
What does the medulla contain
Straight tubules, collecting ducts and the vasa recta
What are medullary rays
Vertical striations that originate in the medulla
Contain staright tubules and collecting ducts
Each nephron and it’s connecting tubule form the uriniferous tubule
Two layers of Bowman’s capsule
Visceral and Parietal
Parietal consists of simple squamous epithelium
How does the proximal tubules appear
Intensely eosinophillic
Cuboidal epithelium
brush border microvilli
How do you identify distal tubules on a slide
Simple cuboidal epithelium Few microvilli (appear more straighter)
What epithelium lines collecting tubules
Simple cuboidal epithelium
Epithelium of ureters
Transional epithelium
Cuboidal when relaxed and squamous when strected
Epithelium of urethra
Epithelium varies from stratified or pseudostratified columnar to stratified squamous
Epithelium of ovary
Germinal epithelium
Surface of the ovary lined by single layer of cuboidal cells; some look almost squamous in certain areas –
Primordial follicle epithelium
Single layer of squamous cells
Epithelium of primary follicle
Cuboidal initially
Later develops into stratified epithelium
Two layers of theca folliculi
Theca interna - layers of cuboidal secretory cells
Theca externa - connective tissue cells
Characteristics of secondary follicle
Fluid containing antrum that is surrounded by cells that are 6-12 layers thick
What is the single layer of cells that surround mature oocyte
Corona radiata