Adrenal

AdrenalCoping with

1Location and Function

located above the kidneyimportant for stress situationsMedulla releases adrenalinecortex releases:glucocorticoidsmineralocorticoidssex hormones.2

3Adrenal Cortex

4Glucocorticoids Cortisol (gluco think glucose or sugar!)TargetbloodPrimary FunctionIncrease level of amino acids in blood to be converted into glucoseReleased during periods of stressMalfunctionAddisons Disease (hyposectretion) Characterized by:Weight lossMuscle weaknessFatigueLow blood pressure

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6Cortisol Control

7Mineralocorticoids - AldosteroneTargetKidney

Primary FunctionIncrease sodium and water reabsorption

8Sex Hormones (not stress)In malesConverted to testosteroneAccounts for pubic hair growth and increased muscle massIn femalesProduces small amount of estrogen

9Adrenal MedullaUnique in that is it stimulated by the nervous system. A neural implus will be given by the hypothalamus to activate the medulla.

10Epinephrine (adrenaline) & Norepinephrine (noradrenaline)TargetMany organsPrimary FunctionIncreaseBlood pressureHeart rateBreathingMetabolismVessels dialate

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12The Big 3TestosteroneProgesteroneEstrogen13TestosteroneIs produced in the testesPromotes sperm formation and development of male secondary sex characteristicsMore in the next chapter.

14ProgesteroneProducedin the ovariesPromotes growth of uterine lining and prevents uterine mascle contractionsMore in the next chapter

15EstrogenProduced in the ovariesStimulate uterine lining growth and development of female secondary sex characteristicsMore in the next chapter

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