How well do you know the hormones of the posterior pituitary gland?
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Questions and Answers

Which part of the brain produces oxytocin and antidiuretic hormone (ADH)?

  • Cerebellum
  • Hypothalamus (correct)
  • Pituitary gland
  • Medulla oblongata

    • Which gland produces growth hormone (GH)?

  • Anterior pituitary gland (correct)
  • Posterior pituitary gland
  • Adrenal gland
  • Thyroid gland

    • What is the role of oxytocin in childbirth?

  • It regulates blood osmolarity.
  • It causes constriction of blood vessels.
  • It stimulates uterine contractions and dilation of cervix. (correct)
  • It increases epithelial permeability to water.

    • What controls GH levels?

    <p>Growth hormone-releasing hormone (GHRH) and growth hormone-inhibiting hormone (GHIH</p> Signup and view all the answers

    What is the function of ADH?

    <p>It increases epithelial permeability to water.</p> Signup and view all the answers

    What is the glucose-sparing effect of GH?

    <p>It inhibits the uptake of glucose</p> Signup and view all the answers

    What is another name for ADH?

    <p>Vasopressin</p> Signup and view all the answers

    How does GH indirectly mediate growth and protein synthesis?

    <p>By triggering the production of insulin-like growth factors (IGFs</p> Signup and view all the answers

    How is the release of ADH controlled?

    <p>By negative feedback loop</p> Signup and view all the answers

    What disorders can result from dysfunction of the endocrine system's control of growth?

    <p>Gigantism, acromegaly, and pituitary dwarfism</p> Signup and view all the answers

    What effect does alcohol have on ADH release?

    <p>It inhibits ADH release</p> Signup and view all the answers

    What hormone regulates the activity of the thyroid gland?

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

    What is diabetes insipidus characterized by?

    <p>Chronic underproduction of ADH</p> Signup and view all the answers

    What hormone stimulates the adrenal cortex to secrete corticosteroid hormones?

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

    Study Notes

    • Posterior pituitary gland stores and secretes hormones produced by hypothalamus.
    • Paraventricular nuclei produce oxytocin, supraoptic nuclei produce ADH.
    • Oxytocin stimulates uterine contractions and dilation of cervix during childbirth.
    • Oxytocin also plays a role in milk ejection reflex and parent-newborn bonding.
    • ADH is released in response to high blood osmolarity.
    • ADH increases epithelial permeability to water, allowing increased water reabsorption in kidneys.
    • ADH is also known as vasopressin, can cause constriction of blood vessels.
    • Release of ADH is controlled by negative feedback loop.
    • Alcohol inhibits release of ADH, causing increased urine production.
    • Diabetes insipidus is characterized by chronic underproduction of ADH.

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    Description

    Test your knowledge of the posterior pituitary gland and its hormones with this quiz! From the production of oxytocin to the function of ADH, this quiz will cover it all. Challenge yourself with questions about the role of these hormones in childbirth, milk ejection, and parent-newborn bonding. Don't forget to brush up on how alcohol affects ADH release and the chronic condition of diabetes insipidus. Sharpen your understanding of endocrine function and take this quiz today!

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