urinary system

Question 1

components of juxtaglerular apparatus

Answer 1

macula densa,mesangial cells and granular cell

Question 2

histology of bowman’s capsule

Answer 2

cells of outer layer form a simple squamous epithelium. cells of inner layer-podocytes -they have foot like processes called pedicles

Question 3

proximal convoluted tubule

Answer 3

low columnar epithelium.

Question 4

loop of henle

Answer 4

thin descending segment has squamous epithelium.permeable to water but not solutes.

Question 5

Disal convoluted tubule

Answer 5

straight part formed by low cuboidal cells without a brush border.The convoluted part comes in contact with glomerulus forming macula densa.

Question 6

ureter

Answer 6

upper 2/3 made of inner longitudinal and outer circular layer which is in contrast to GIT which has inner circular and outer longitudonal. lower 1/3 inner longitudinal muscle,middle circular and outer longitudinal.

Question 7

urethra

Answer 7

in both sexes urethra starts out as transitional cell but becomes stratifed squamous in females.Male urethra ends up as stratified swuamous as well.

Question 8

bladder

Answer 8

mucosa of transitional epitheliun,submucosa and thick muscular llayer -detrusor muscle.