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Chapter 37: Q. 34 (page 1079)

The adrenal medulla contains two types of secretory cells, what are they and what are their functions?

Short Answer

Expert verified

The adrenal medulla primarily secretes the following hormones:

  • epinephrine (adrenaline)
  • norepinephrine (noradrenaline)

Step by step solution

01

Step : 1 An Explanation of Epinephrine and Norepinephrine

  • Epinephrine is the primary hormone of the adrenal medulla and is the source of 75鈥�80% of its discharges.
  • Epinephrine and norepinephrine speed up the release of stored calories in fatty tissue and glucose in muscle tissue.
  • Neural impulses from the sympathetic nerve system increase the secretion of epinephrine and norepinephrine.
02

Step : 2 Functions of epinephrine and norepinephrine.

  • To maintain the body's water and mineral balance.
  • To control the body's carbohydrate metabolism in order to keep blood glucose levels within normal range.
  • To control the maturation of sexual organs and traits.
  • To activate the fight-or-flight response when the sympathetic nervous sends messages to the body.

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