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Pituitary Gland and Adrenal Gland


  • A: Hypothalamus is nervous tissue that has secretory neurons that secrete oxytocin and ADH into herring bodies in that pars nervosa.

    B: Infundibulum is a stalk of nervous tissue that runs down to the pars nervosa.

    C: Pars Tuberalis is a portion of the adenohypophysis that surrounds the pituitary stalk.

    D: Pars Nervosa is derived from a downgrowth of nervous tissue from the hypothalumus.

    E: Pars Intermedia

    F: Pars Distalis or anterior pituitary houses FSH, LH, ACTH, TSH, GH, and Prolactin
  • A: Acidophilic chromophils produce growth hormone and prolactin and they stain brightly due to their acidic nature

    B: Basophilic chromophils produce follicle stimulating, leutinizing, adrenocorticotropic, and thyroid stimulating hormones. They stain less bright than the acidophilic chromophils
  • A: Brightly staining acidophilic chromophils

    B: Basophilic chromophils stain much lighter

    C: Chromophobes have very few secretory granules so they don't have staining in the cytoplasm


  • A: Adrenal cortex contains 3 different layers: glomerulosa, fasciculata, reticularis

    B: Medulla is lighter staining than the cortex
  • A: Zona Reticularis

    B: Medulla
  • A: Capsule is made of fibrocartilagenous tissue

    B: Zona Glomerulosa secretes mineralcorticoids i.e. aldosterone

    C: Zona Fasciculata secretes gluccocorticoids i.e cortisol

    D: Zona Reticularis secretes androgens i.e. DHEA
  • A: Zona Reticularis

    B: Noradrenaline secreting cells stain with a more pink color.

    C: Adrenaline secreting cells stain purple

    Both of these type of cells are considered chromaffin cells and secrete catacholamines epinephrine and norepinephrine