Question 22 If you were to take a sample of hypophyseal portal blood, which of the following might you find? a. TRH b. hGH c. FSH d. ADH
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The hypophyseal portal system carries hormones from the hypothalamus to the anterior pituitary. Show more…
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Which of the following is an anterior pituitary hormone? a. ADH b. oxytocin C. TSH d. cortisol
20. Hypothalamic releasing hormones travel to the adenohypophysis (anterior lobe) through the: a) neurohypophysis b) pituitary duct c) bile duct d) hypophyseal portal veins e) interventricular aqueduct f) via veneto 25. A healthy 22-year-old man participates in a study of glucose metabolism. At the beginning of the study, his serum glucose concentration is within the reference range. He consumes an 800-calorie meal consisting of protein, fat, and carbohydrates. He then sleeps through the night without additional food or drink. Twelve hours later, his serum glucose concentration remains within the reference range. Which of the following mechanisms is most likely involved in maintaining this man's serum glucose concentration? (A) Continued gut absorption of calories from the ingested meal (B) Glucose release from skeletal muscle (C) Glycogenolysis in the liver (D) Increased leptin release from adipose tissues (E) Inhibition of glucagon release by the pancreas
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9. Which of the following is not true of oxytocin? a. It is produced in the posterior pituitary gland. b. It causes the contractions of the uterus during labor. c. It is one of the few hormones that is regulated by a positive feedback loop. d. It stimulates "milk letdown" in nursing mothers. 10. The hypothalamus a. is composed of a glandular portion and a nerve portion b. produces ADH c. releases ADH d. is located in the sella turcica 11. Thyroxine a. has fewer iodine atoms than triiodothyronine b. stimulates the release of thyroid-stimulating hormone c. has more target cells than ADH d. All of the above are true of thyroxine. 12. Calcitonin a. is released by the parathyroid gland b. prevents hypercalcemia c. increases the calcium level in the blood d. can cause Graves disease if it is hypersecreted 13. An inadequate intake of iodine in the diet can a. lead to hyperthyroidism b. cause Graves disease c. cause exophthalmos d. cause a goiter
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