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19 Cards in this Set

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Adrenal glands

Paired organs located in the upper poles of the kidneys

Adrenal glands

Flat triangular organs with combined weight of 8 gms; 4-6 cm x 1-2 x 4-6 mm

1. Capsule


2. Reticular fibers supporting the cells

Stroma of adrenal glands

Adrenal medulla

Large pale staining polyhedral cells arranged in rounded clusters or short cords (chromaffn cells)

Catecholamines

In adrenal medulla secretory activity under the control of the autonomic nervous system; secrete

Pancreatic islets

Compacts spherical masses of endocrine tissue embedded within the acinar exocrine portion

Pancreatic islets

Cells are polygonal or rounded arranged in cords and are lightly stained than the acinar cells

Alpha or A cells

Located near periphery; glucagon


Increases blood glucose during fasting

Beta or B cells

Central location; most numerous; insulin


Decreases blood glucose

Delta or D cells

Scattered; less abundant; somatostatin


Regulates insulin amd glucagon

F or PP cells

Pancreatic polypeptide

Zona glomerulosa

Columnar cells in an acinar/rounded arrangement 15%

Mineralocorticoids/aldosterone

Zona glomerulosa

Mineralocorticoids/aldosterone

Control body fluid volume by increasing the reabsorption of sodium by the kidneys

Zona fasciculata

Polyhedral cells arranged in long columns 65-80%

Glucocorticoids/cortisol

Zona fasciculata

Glucocorticoids/cortisol

Affects the metabolism of carbohydrates, proteins and fats; anti-inflammatory

Zona reticularis

Smaller cells arranged in irregular cords 10%

Androgen

Zona reticularis