Histology Flashcards
What kind of epithelium lines the urinary bladder and ureter?
Urothelium or transitional epithelium
The advantage of this is that it is able to stretch significantly to accommodate large volumes of urine. The transitional epithelium also provides protection to the underlying tissues from acidic or alkaline urine.
What organ is this showing
The kidney
Destuinguish the cortex vs the medulla of the kidney
Cortex is full of globules whereas, the medulla is more tubule
Label this diagram
Renal corpuscle
Glomeruli have a side next to blood vessels- vascular side
And then one going into nephron- urinary side
Label this diagram
Label this diagram of the renal corpuscle
Complete this diagram
Epithelium of the proximal convoluted tubule
Simple tall cuboidal epithelium, with a brush border (microvilli).
Epithelium of the loop of henle
simple squamous epithelium
Epithelium of the distil convuluted tubule
Cuboidal, with few microvilli
Label this diagram
Which part of the kidney is this?
Kidney: Cortex
Renal corpuscles (Bowman’s capsule: simple squamous epithelium)
Proximal convoluted tubules (cuboidal+ microvilli)
Distal convoluted tubules (cuboidal)
Collecting tubule (cuboidal)
What does this show & describe its epithelium
The ureter
Transitional epithelium
Star shaped lumen
Inner longitudinal smooth muscle (SM)
Outer circular SM
What organ does this show & describe its epithelium
Bladder
Transitional epithelium
Inner longitudinal (IL) smooth muscle (SM)
Middle circular(MC) SM
Outer longitudinal (OL) SM
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How are hormones stored in a thyroid gland?
Hormones are stored in cavities, surrounded by secretory cells. These make up a follicle. Within the cavity of the follicle, the hormone is bound to a glycoprotein and is called as colloid. During secretion the hormone is re-absorbed from the cavity, and then released into the surrounding interstitial spaces.