Pituitary Gland and Its Hormones

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Questions and Answers

Which hormone is responsible for the production of melanin by stimulating melanocytes?

  • Melanocyte-Stimulating Hormone (MSH) (correct)
  • Luteinizing Hormone (LH)
  • Prolactin
  • Follicle-Stimulating Hormone (FSH)

Which hormone acts on the ovaries in females to produce estrogen, progesterone, and inhibin?

  • Melanocyte-Stimulating Hormone (MSH)
  • Follicle-Stimulating Hormone (FSH)
  • Oxytocin
  • Luteinizing Hormone (LH) (correct)

Which hormone is responsible for the contraction of the female uterine smooth muscle?

  • Growth Hormone Releasing Hormone (GHRH)
  • Prolactin
  • Oxytocin (correct)
  • Antidiuretic Hormone (ADH)

What hormones are exclusively produced in the posterior pituitary?

<p>Oxytocin and Antidiuretic Hormone (ADH) (D)</p> Signup and view all the answers

Which hormone goes to the testes of males and stimulates the production of inhibin and testosterone?

<p>Follicle-Stimulating Hormone (FSH) (D)</p> Signup and view all the answers

What is the main role of Antidiuretic Hormone (ADH) in males?

<p>Control of water balance via kidneys (C)</p> Signup and view all the answers

Which hormone is primarily responsible for triggering uterine contractions during childbirth and milk ejection in lactating women?

<p>Oxytocin (D)</p> Signup and view all the answers

What is the primary function of antidiuretic hormone (ADH), also known as vasopressin?

<p>Regulating water reabsorption in the kidneys (A)</p> Signup and view all the answers

Which part of the pituitary gland is responsible for releasing oxytocin and antidiuretic hormone (ADH)?

<p>Posterior pituitary (neurohypophysis) (B)</p> Signup and view all the answers

Which statement about oxytocin is NOT true?

<p>It regulates water reabsorption in the kidneys. (C)</p> Signup and view all the answers

Which hormone is primarily responsible for regulating the production of androgens in males and estrogens and progesterone in females?

<p>Luteinizing hormone (LH) (B)</p> Signup and view all the answers

Which statement best describes the relationship between the hypothalamus and the posterior pituitary gland?

<p>The posterior pituitary gland contains axons of hypothalamic neurons that release oxytocin and ADH. (B)</p> Signup and view all the answers

Which hormone is released by the hypothalamus and stimulates the anterior pituitary to secrete adrenocorticotropic hormone (ACTH)?

<p>Corticotropin-releasing hormone (CRH) (C)</p> Signup and view all the answers

Which hormone is released by the posterior pituitary and plays a role in the regulation of water balance and blood pressure?

<p>Antidiuretic hormone (ADH) (B)</p> Signup and view all the answers

Which hormone is released by the posterior pituitary and plays a role in the milk production and milk ejection reflex?

<p>Oxytocin (A)</p> Signup and view all the answers

Which hormone released by the hypothalamus stimulates the anterior pituitary to secrete thyroid-stimulating hormone (TSH)?

<p>Thyrotropin-releasing hormone (TRH) (D)</p> Signup and view all the answers

Which hormone released by the hypothalamus stimulates the anterior pituitary to secrete growth hormone (GH)?

<p>Growth hormone-releasing hormone (GH-RH) (D)</p> Signup and view all the answers

Which hormone released by the hypothalamus inhibits the release of prolactin from the anterior pituitary?

<p>Prolactin-inhibiting hormone (PIH) or Dopamine (A)</p> Signup and view all the answers

Which hormone is primarily responsible for the regulation of water balance in the body?

<p>Antidiuretic hormone (ADH) (C)</p> Signup and view all the answers

In the case of central diabetes insipidus, what is the primary cause of the condition?

<p>Deficiency of ADH (C)</p> Signup and view all the answers

Which of the following hormones is primarily responsible for the milk ejection reflex in lactating women?

<p>Oxytocin (A)</p> Signup and view all the answers

In the syndrome of inappropriate ADH secretion (SIADH), what is the primary consequence of excessive ADH release?

<p>Dilutional hyponatremia (B)</p> Signup and view all the answers

Which of the following hormones is considered a tropic hormone, meaning it regulates the secretory action of other endocrine glands?

<p>Thyroid-stimulating hormone (TSH) (C)</p> Signup and view all the answers

Which of the following hormones is classified as a gonadotropin, meaning it regulates the activities of the gonads (ovaries and testes)?

<p>Follicle-stimulating hormone (FSH) (B)</p> Signup and view all the answers

Which of the following statements accurately describes the role of the hypothalamic-hypophyseal tract?

<p>It transports oxytocin and ADH from the hypothalamus to the posterior pituitary. (A)</p> Signup and view all the answers

Which hormone is primarily responsible for stimulating the release of cortisol from the adrenal cortex?

<p>Adrenocorticotropic hormone (ACTH) (B)</p> Signup and view all the answers

What is the primary function of oxytocin?

<p>Inducing labor contractions and facilitating milk ejection during breastfeeding (B)</p> Signup and view all the answers

Which of the following hormones is responsible for regulating growth and metabolism?

<p>Growth hormone (GH) (B)</p> Signup and view all the answers

What is the primary function of the antidiuretic hormone (ADH)?

<p>Regulating water balance and urine production (B)</p> Signup and view all the answers

Which of the following hormones is involved in the regulation of the menstrual cycle and reproductive functions?

<p>Luteinizing hormone (LH) and Follicle-stimulating hormone (FSH) (D)</p> Signup and view all the answers

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