Glands, Gooseflesh, and Hormones - Hormones of the stress response

8 important questions on Glands, Gooseflesh, and Hormones - Hormones of the stress response

Wat zijn de belangrijkste stoffen die werkzaam zijn in je lichaam tijdens een stress response?

Epinephrine, norepinephrine (released by the sympathetic nervous system) en glucocorticoiden.

Wat gebeurt er in de hypothalamus bij een stressvolle gebeurtenis?

De hypothalamus scheidt een aantal hormonen uit zoals, CRH (corticotropin releasing hormone) in de hypothalamus-pituitary omloop. In 15 seconden triggert CRH de hypofyse om ACTH/corticotropin los te laten. Dit komt in het bloed terecht, naar de bijnier (adrenal gland) en trieert glucocorticoid release.

What are the glucocorticoids (GC)?

Steroid hormones. Secreted by the adrenal gland. Act in ways similar to epinephrine. Epinephrine acts within seconds; glucocorticoids back up this activity over the course of minutes or hours.
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Proces van de hypothalamus bij een stress respons

Bij een stressvolle gebeurtenis laat de hypothalamus veel vrijmakende hormonen los in de hypothalamus-bijnier circulatie:

  1. Hypothalamus -> stimuleert SNS, onderdrukt PNS
  2. CRH/CRF (corticotropin releasing hormone/factor)
  3. Hypofyse
  4. ACTH (corticotropin)
  5. Bijnier (adrenal gland)
    1. cortex
      1. cortisol -- naar de target organen
    2. Medulla (vanuit SNS)
      1. Adrenaline -- naar de target organen

Which hormones account for a lagre percentage of what happens in your body during stress?

Glucocorticoids an the secretions of the sympathetic nervous system (epinephrine and norepinephrine)

What is the hormone glucagon?

Togheter with glucocorticoids and the sympathetic nervous system this hormone raise circulation levels of sugar glucose --> mobilizing energy during stress.

What do endorphins and enkephalins do?

Secreted from the pituitary and the brain, Blunt pain perception during stress

What hormones ar inhibited during stress?

- various of reproductive hormones, such as progesterone and testosterone.
- hormones related to growth, insuline or pancreatic hormone that tells your body to store energy for later.

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