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College of Life Sciences Cell Biology and Physiology
CELL 325: Tissue Biology
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Pituitary Gland and Adrenal Gland

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Pituitary 4X.jpg
Pituitary 4X
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pituitary 20X.jpg
pituitary 20X
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pituitary 40X.jpg
pituitary 40X
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Adrenal gland 4X.jpg
Adrenal gland 4X
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Adrenal Gland 20X cortex-medulla.jpg
Adrenal Gland 20X cortex-medulla
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Adrenal gland 20X cortex.jpg
Adrenal gland 20X cortex
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Adrenal Medulla 20X.jpg
Adrenal Medulla 20X
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Pituitary

  • 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

Adrenal

  • 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

Endocrine

Pituitary Gland and Adrenal Gland
Thyroid and Parathyroid
Pancreas and Enteroendocrine Cells
Endocrine Quiz