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Coping with. Adrenal. Location and Function. located above the kidney important for stress situations Medulla releases adrenaline cortex releases: glucocorticoids mineralocorticoids sex hormones. Adrenal Cortex. Malfunction Addisons Disease (hyposectretion) Characterized by:

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Coping with

Coping with

Adrenal


Location and function
Location and Function

  • located above the kidney

  • important for stress situations

  • Medulla releases adrenaline

  • cortex releases:

    • glucocorticoids

    • mineralocorticoids

    • sex hormones.



Glucocorticoids cortisol gluco think glucose or sugar

Malfunction

Addisons Disease (hyposectretion) Characterized by:

Weight loss

Muscle weakness

Fatigue

Low blood pressure

Glucocorticoids – Cortisol (gluco – think glucose or sugar!)

Target

  • blood

    Primary Function

  • Increase level of amino acids in blood to be converted into glucose

  • Released during periods of stress



Mineralocorticoids aldosterone
Mineralocorticoids - Aldosterone

Target

  • Kidney

    Primary Function

  • Increase sodium and water reabsorption


Sex hormones not stress
Sex Hormones (not stress)

  • In males

    • Converted to testosterone

    • Accounts for pubic hair growth and increased muscle mass

  • In females

    • Produces small amount of estrogen


Adrenal medulla
Adrenal Medulla

  • Unique in that is it stimulated by the nervous system. A neural implus will be given by the hypothalamus to activate the medulla.


Epinephrine adrenaline norepinephrine noradrenaline
Epinephrine (adrenaline) & Norepinephrine (noradrenaline)

Target

  • Many organs

    Primary Function

  • Increase

    • Blood pressure

    • Heart rate

    • Breathing

    • Metabolism

    • Vessels dialate


Testosterone progesterone estrogen

Testosterone

Progesterone

Estrogen

The Big 3


Testosterone
Testosterone

  • Is produced in the testes

  • Promotes sperm formation and development of male secondary sex characteristics

  • More in the next chapter.


Progesterone
Progesterone

  • Producedin the ovaries

  • Promotes growth of uterine lining and prevents uterine mascle contractions

  • More in the next chapter


Estrogen
Estrogen

  • Produced in the ovaries

  • Stimulate uterine lining growth and development of female secondary sex characteristics

  • More in the next chapter


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