Suprarenal Gland Structure Under The Microscope: Cortex, Medulla, And Sinusoids

Suprarenal Gland Structure Under The Microscope: Cortex, Medulla, And Sinusoids

Histology of Suprarenal Gland
Answer:

• It is also called adrenal gland
• It is covered by connective tissue capsule
• Septa extends from capsule and divides the gland substance

Histology of Suprarenal Gland Parts:

1. Cortex:
   • It is made up of cells arranged in cords
   • Sinusoids intervene between the cords
   • Layers:
     1. Zona glomerulosa
        • Outermost layer
        • Consists 1/5th of cortex
        • Cells are arranged as inverted U shape
     2. Zona fasciculata
        • Cells are arrange in straight columns
        • Sinusoids intervene between columns
        • Consists 3/5th of cortex
     3. Zona reticularis
        • Consists 1/5th of cortex
        • Made up of cords that branch and anastomose

• • Secretions:

1. • • Aldosterone and deoxycorticosterone by cells of zona glomerulosa
     • Cortisone and cortisol by cells of zona fasciculata
     • Glucocorticoids and sex hormones by cells of zona reticularis
2. Medulla:
   • Cells shows yellow cytoplasm
   • Cells are columnar
   • Arranged in columns which are separated by wide sinusoids
   • Cytoplasm is basophilic
   • Secretions:
   • Secretes adrenaline and non adrenaline