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.Management Sciences
Category: Endocrinology
Removal of parathyroid gland produces the following changes EXCEPT_________________?
A. Decline plasma calcium level
B. Decrease in plasma phosphate level
C. Neuromuscular hyperexcitability
D. hypo calcemic tetany
The primary site of action of antidiuretic hormone is on the_______________?
A. Distal tubules and collecting ducts in the kidney
B. Afferent arterioles of the glomeruli
C. Thirst center in the hypothalamus
D. Osmoreceptors in the hypothalamus
Enzymes, which play an important role in calcification are______________?
A. Enolase and Calcitonin
B. Alkaline phosphatase and catalase
C. Alkaline phosphatase and pyrophophatase
D. Pyrophosphatase and carbonic anhydrase
Cortisol levels are maximum during____________?
A. Sleep
B. Early morning
C. Evening
D. Have no change
Low calcium level will cause_____________?
A. Hyper excitability of wrist muscle
B. Weak heart action
C. Tetanus
D. All of the above
A diet deficient in calcium will result in_____________?
A. Stimulation of the thyroid gland
B. Increased ability to cross – link fibrin
C. Production of Calcitonin and a low blood calcium level
D. Production of parathyroid hormone and bone resorption
Which one of the following is a precursor of both gonadal and adrenocortical hormones_____________?
A. Progesterone
B. Cortisol
C. Testosterone
D. Corticosterone
Which of the following hormones increase the sensitivity of heart to epinephrine________________?
A. Parathyroid
B. Insulin
C. Thyroid
D. Glucagon
Which of the following results due to excessive parathormone secretion_______________?
A. Increased excretion of phosphates
B. Increased serum calcium
C. Decrease excretion of calcium
D. Increase excretion of calcium
Inhibit b hormone has effect on_______________?
A. Sertoli cells
B. FSH
C. Seminiferous tubules
D. Spermatogenesis
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