Adrenal gland

1. Adrenal Gland

2.  Introduction
 Position
 Size & diameters
 Morphology
 Anatomy
 Physiological secretion

3. Adrenal Glands
One on top of each kidney
 Cortex
 Corticosteroid
 glandular
 Medulla
 Catecholamines
 neurohormonal
 Epinephrine
 Norepinephrine

4. Adrenal Cortex
 Cortex
 Activity stimulated by ACTH
 Controls prolonged responses by secreting corticosteroids.
 Mineralcorticoids
 Aldosterone regulate salt and water balance
 Glucocorticoids
 Cortisol regulate glucose metabolism and the
immune system.
 Gonadocorticoids
 Androgens
 Estrogens

5. Adrenal Medulla
 Medulla
 The adrenal medulla mediates short–term
responses by secreting catecholamine hormones.
 Cells are modified neurons (lack axons)
 Epinephrine (adrenaline)
 Norepinephrine (noreadrenaline)
 enable a rapid ( fight-or-flight )
responses to stress by increasing blood
glucose and blood pressure and
directing blood to the heart, brain, and
skeletal muscles.