weekly exam 1 MCQ urinary tract

1- One of the followings is true about macula densa:

a- Modified smooth muscle cell

b- cytoplasm contain PAS positive secretory granules

c- small pale stained cells

d- Infa nuclear Golgi apparatus

e- low cubical cells


2- Diabetes insipidus is characterized by:

a- inadequate reabsorption of water from collecting tubules

b- High uncontrollable blood sugar

c- due to increased secretion of antidiuretic hormone

d- Excessive production of hypertonic urine

e- affection of the juxtaglomerular apparatus


3- Arcuate arteries in the kidney are located:

a- at the hilum

b- in-between the lobules

c- between the pyramids

d- around the convoluted tubules

e- around the bases of the pyramids


4- Umbrella cells:

a- superficial cells in the empty bladder

b- superficial cells in full bladder

c- present in the collecting tubules

d- present in the collecting ducts

e- present in the juxtaglomerular apparatus


5- Musculosa of the the upper two thirds of the ureter is characterized by:

a- formed of inner circular and outer longitudinal smooth muscle

b- formed of inner and outer circular and middle longitudinal smooth muscle

c- formed of outer circular and inner longitudinal smooth muscle

d- formed of inner and outer longitudinal and middle circular smooth muscle

e- formed of outer circular and inner longitudinal striated involuntary muscle

1- d- Infa nuclear Golgi apparatus

2- a- inadequate reabsorption of water from collecting tubules
3- e- around the bases of the pyramids
4- a- superficial cells in the empty bladder
5- c- formed of outer circular and inner longitudinal smooth muscle

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