Physiology MCQs

Page No. 46

Thyroxine causes all the following except______________?


aDecreased cell metabolism


bIncreased oxygen consumption


cIncreased pulmonary ventilation


dIncreased basal metabolism



Which hormone does not have corresponding release hormone produced in pituitary ?


aTSH


bProlactin


cACTH


dFSH


View Answer Prolactin

The hormone , which stimulates uterus contraction and lets down milk, is_____________?


aProgesterone


bProlactin


cProstaglandin


dOxytocin


View Answer Oxytocin

The primary site of action of antidiuretic hormone is on the_______________?


aDistal tubules and collecting ducts in the kidney


bAfferent arterioles of the glomeruli


cThirst center in the hypothalamus


dOsmoreceptors in the hypothalamus



Features of hypothyroidism does not include______________?


aObseity


bHypertension


cHigh TSH levels


dIncreased risk of infections



Hormone released during increased stress is_____________?


aCortisol


bThyroxine


cGrowth hormone


dSomatostatin


View Answer Cortisol

Which of the following statements about the action of the somatomedin is true ?


aThey inhibit protein synthesis


bThey antagonize the effect of insulin


cThey promote growth of bone and cartilage


dThey mediated the local effects of Somatostatin



Steroid hormones are believed to enter target cells via_______________?


aFacilitated diffusion


bCarrier – mediated endocytosis


cCholesterol lined pores in the plasma membrane


dSimple diffusion


View Answer Simple diffusion

Epinephrine is most closely related in structure to ____________________?


aNiacin


bTyrosine


cMethionine


dGlycerol


View Answer Tyrosine

Contraceptive action of combined pill is mainly due to_______________?


aDecrease in tubal motility


bPrevents the fertilization


cPrevents the implantation of fertilized egg


dInhibits ovulation


View Answer Inhibits ovulation

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