Hormones and the Endocrine System
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Questions and Answers

Which gland releases the hormone cortisol?

  • Ovaries
  • Thyroid
  • Testes
  • Adrenals (correct)
  • What hormone is released by the testes?

  • Estrogen
  • Testosterone (correct)
  • Oxytocin
  • Prolactin
  • Which hormone is released by the anterior pituitary gland that stimulates milk production?

  • Prolactin (correct)
  • ACTH
  • Growth hormone
  • TSH
  • Where is the hormone vasopressin (ADH) released from?

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

    Which hormone is released by the ovaries?

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

    What is a potential consequence of over-secretion of Growth Hormone (GH) in adults?

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

    Which hormone regulates the growth of mammary glands and milk production?

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

    Which hormone stimulates the contraction of smooth muscles, including the uterus during childbirth?

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

    What happens if there is low secretion of Growth Hormone (GH) in the body?

    <p>Pituitary dwarfism</p> Signup and view all the answers

    Which hormone plays a key role in reducing water loss through urine?

    <p>Anti-diuretic Hormone</p> Signup and view all the answers

    Which condition is associated with an impairment affecting the synthesis or release of Anti-diuretic Hormone (ADH)?

    <p>Diabetes Insipidus</p> Signup and view all the answers

    Which part of the brain is the pituitary gland attached to by a stalk?

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

    What hormone is produced by the neurohypophysis?

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

    Which of the following is a hormone produced by the adenohypophysis?

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

    Which hormone stimulates milk production in the mammary glands?

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

    What is the alternative name for the posterior pituitary?

    <p>Pars nervosa</p> Signup and view all the answers

    Which part of the pituitary gland releases growth hormone?

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

    Study Notes

    Endocrine System

    • The hypothalamus produces oxytocin and vasopressin (ADH)
    • The anterior pituitary gland produces TSH, ACTH, growth hormone, prolactin, luteinizing hormone, and follicle-stimulating hormone
    • The thyroid gland produces thyroid hormone
    • The adrenal glands produce cortisol
    • The testes produce testosterone
    • The ovaries produce estrogen and progesterone

    Effects of Pituitary Gland Hormones

    Growth Hormone

    • Over-secretion of GH leads to gigantism
    • Under-secretion of GH leads to pituitary dwarfism
    • Excess secretion of GH in adults can cause acromegaly, leading to severe disfigurement

    Prolactin

    • Regulates growth of mammary glands and formation of milk

    Oxytocin

    • Stimulates contraction of smooth muscles
    • Stimulates uterine contraction during childbirth and milk ejection from mammary glands in females

    Anti-diuretic Hormone (ADH)

    • Acts on kidneys to stimulate resorption of water and electrolytes
    • Reduces water loss through urine (diuresis)
    • Impairment of ADH synthesis or release leads to Diabetes Insipidus, characterized by water loss and dehydration

    Pituitary Gland

    • Located in the sella tursica, attached to the hypothalamus by a stalk
    • Divided into adenohypophysis and neurohypophysis
    • Produces various hormones, including oxytocin, ADH, growth hormone, prolactin, TSH, ACTH, and gonadotrophic hormones

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    Description

    This quiz covers the functions of the endocrine system, including the hormones produced by various glands in the body.

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