The document describes the structure of the adrenal gland, which consists of an outer cortex and inner medulla. The cortex contains three zones - an outer zone with small polyhedral cells arranged in inverted groups, a middle zone with large polyhedral cells in straight columns, and an inner zone with smaller and more acidophilic cells in cords. The medulla contains groups of cells separated by wide sinusoids and yellow granules that are potassium dichromate staining pheochromocytes.

1. V.S.RASHMI PRIYEM
ULTRA’S BEST DENTAL SCIENCE COLLEGE,MADURAI

2.  CONSISTS OF
◦ OUTER CORTEX
◦ INNER MEDULLA

3. 3 ZONES

5.  OUTERMOST
 CELLS ARRANGED AS INVERTED OR U SHAPED
OR ACINUS LIKE GROUPS
 CELLS
◦ SMALL
◦ POLYHEDRAL / COLUMNAR
◦ BASOPHILIC CYTOPLASM
◦ DEEPLY STAINING NUCLEI

7.  CELLS ARRANGED IN STRAIGHT COLUMNS
 TWO CELL THICK
 CELLS
◦ LARGE
◦ POLYHEDRAL
◦ BASOPHILIC CYTOPLASM
◦ VESICULAR NUCLEI

9.  INNERMOST
 MADE UP OF CORDS
 CELLS
◦ SMALLER
◦ MORE ACIDOPHILIC

11.  GROUPS OF CELLS SEPARATED
BY WIDE SINUSOIDS
 YELLOW GRANULES –
POTASSIUM DICHROMATE
 CHROMAFFIN CELLS -
PHEOCHROMOCYTES