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Endocrine Physiology
(Single Best Answer) Question 1: All of the following steps are involved in the T3 synthesis pathway ?
A) Coupling
B) Trapping
C) Ingestion of Potassium Iodide
D) None of the above
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2: High Prolactin is due to ?
A) Elevated Estradiol
B) Elevated Testosterone
C) High FSH
Answer (Select an option above to get the answer):
(Single Best Answer) Question 3: Which of the following affect secretion of Prolactin ?
A) Dopamine
B) FSH
C) GnRH analogues
D) Serotonin
Answer (Select an option above to get the answer):
(Single Best Answer) Question 4: Assertion (A) : Thyroxine (T4) is more important physiological hormone than Triiodothyronine (T3)
Reason (R) : T4 acts more slowly than T3 hormone.
A) Both A and R are individually true and R is the correct explanation of A
B) Both A and R are individually true and R is NOT the correct explanation of A
C) A is true but R is false
D) A is false but R is true
Answer (Select an option above to get the answer):
(Single Best Answer) Question 5: Calcitonin is secreted by ?
A) Thyroid gland
B) Parathyroid gland
C) Adrenal glands
D) Ovaries
Answer (Select an option above to get the answer):
(Single Best Answer) Question 6: Prolactin secretion is inhibited by ?
A) Dopamine antagonist
B) GABA
C) Neurophysin
D) Bromocriptine
Answer (Select an option above to get the answer):
(Single Best Answer) Question 7: Which of the following is false regarding Vasopressin Receptor ?
A) V1 - Endothelial smooth muscles
B) V2 - distal nephron
C) V3 - anterior pituitary
D) V4 - CNS
Answer (Select an option above to get the answer):
(Single Best Answer) Question 8: All of the following are true for ADH, except ?
A) Acts on distal tubule and increase permeability
B) Increased secretion when plasma osmolality is low
C) Neurosecretion
D) Post-operative increase in secretion
Answer (Select an option above to get the answer):
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