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

Which hormone is released by the ovaries?

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

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

<p>Acromegaly (C)</p> Signup and view all the answers

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

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

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

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

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

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

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

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

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

<p>Hypothalamus (C)</p> Signup and view all the answers

What hormone is produced by the neurohypophysis?

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

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

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

Which hormone stimulates milk production in the mammary glands?

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

What is the alternative name for the posterior pituitary?

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

Which part of the pituitary gland releases growth hormone?

<p>Adenohypophysis (B)</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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