HPA Axis and Stress Response Quiz
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Questions and Answers

What hormone does the hypothalamus release to stimulate the anterior pituitary gland?

  • Adrenocorticotropic hormone (ACTH)
  • Growth hormone (GH)
  • Thyroid stimulating hormone (TSH)
  • Corticotropin releasing hormone (CRH) (correct)
  • Which gland is stimulated by the release of CRH from the hypothalamus?

  • Pituitary gland (correct)
  • Adrenal gland
  • Thyroid gland
  • Pancreas
  • In the HPA axis, what hormone does the anterior pituitary gland secrete in response to CRH?

  • Adrenocorticotropic hormone (ACTH) (correct)
  • Growth hormone (GH)
  • Luteinizing hormone (LH)
  • Thyroid stimulating hormone (TSH)
  • Which term describes a mechanism where rising levels of a hormone inhibit its own further release?

    <p>Negative feedback control</p> Signup and view all the answers

    What type of axis is formed by the hypothalamus, pituitary gland, and adrenal glands in endocrine regulation?

    <p>Hypothalamic-pituitary-adrenal axis</p> Signup and view all the answers

    What axis is triggered in response to stress, both physical and psychological?

    <p>Hypothalamic-pituitary-adrenal (HPA) axis</p> Signup and view all the answers

    Which gland is primarily responsible for secreting hormones that stimulate the HPA axis?

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

    In the negative feedback control mechanism, which component typically inhibits further release of stress hormones?

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

    Which type of control loop is involved in the stress response when the HPA axis is activated?

    <p>Positive feedback control</p> Signup and view all the answers

    What is the primary function of the pituitary gland in the context of the HPA axis during a stress response?

    <p>To sense stress and activate the cascade of hormone release</p> Signup and view all the answers

    What effect does rising cortisol levels have on the hypothalamus and pituitary gland in response to stress?

    <p>They exert negative feedback on both the hypothalamus and pituitary gland</p> Signup and view all the answers

    In the negative feedback mechanism involving cortisol, what is the role of the hypothalamus?

    <p>It senses cortisol levels and signals the pituitary gland to inhibit hormone secretion</p> Signup and view all the answers

    How does cortisol influence the secretion of hormones from the pituitary gland?

    <p>It decreases hormone secretion by exerting negative feedback on the pituitary gland</p> Signup and view all the answers

    Which of the following best describes the relationship between rising cortisol levels and the HPA axis?

    <p>Cortisol functions in a negative feedback loop to regulate the HPA axis activity</p> Signup and view all the answers

    What is the primary effect of cortisol on the hypothalamus and pituitary gland when stress occurs?

    <p>Triggering a negative feedback mechanism to reduce further hormone release</p> Signup and view all the answers

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