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Which one of the following cells secrets glucose A α-cell B β-Cell C δ-cell D F-cell Deficiency of insulin in the body leads to : A B C D golter diabetes mellitus dwarfism diabetes insipidus Glucagen causes A- an incease in glucose levels in the blood B- a decrease in glucose levels in the blood C- a decrease in lipogenesis D- a decrease in the production of glucaagon In terms of function, glucagon works as antagonist to: A- insulin B- thyroid hormones C- estrogens D- antidiuretic hormones Which one of the following decreases blood glucose level ? A- glucagon B- rennin C-insulin D-oxytocin Which one of the following hormones stimulates Na+(sodium) reabsorption by the kidney : A- epinephrine B- cortisol C- insulin D- aldosterone Which one of the following is secreted by zona glomerulosa in the adrenal gland ? A Corisol B ACTH C aldosterone D Norepinephrine and epinephrine Testosterone is secreted by A interstitial cells of the testis (leydig cells) B spermatogonium C sertoll cells D anterior pituitary Ovulation occurs at : A beginning of the cycle B End of the cycle C mid cycle (day 14) D day 5 of the cycle Which one of the following inhibits insulin release ? A Parasympathetic stimulation B high blood glucose level C sympathetic stimulation D gastrointestinal hormones Which one of the following is an effect of cortisol ? A inhibition of inflammatory response to tissue injury B inhibition of hepatic glucaneogenesis C stimulation of protein synthesis D lowering of blood glucose level The target cells for LH in the testis are A leydig cells B sertoli cells C seminepherous tubules D epididymis The hormone responsible for ovulation is : A prolactin B Leutinizing hormone (LH) C progesterone D inhibin Which one of the following is true regarding follicular phase ?