Briefly explain about adrenal gland.

Explanation

Adrenal gland or Supra renal gland : It is the gland of emergency.
Location: They are present just at the anterior end of the kidneys.
Parts of Adrenal gland:

1. Adrenal cortex : It is the outer part of the adrenal gland. It is further differentiated into three parts :
(a) Zona glomerulosa (Outer zone)
(b) Zona fasciculata (Middle zone)
(c) Zona reticulosa (Inner zone outer to adrenal medulla).
Adrenal cortex secretes the following three hormones derived from steroids :
(i) Aldosterone or mineralo-corticoids.
(ii) Cortisol or gluco-corticoids.
(iii) Sexcorticoids or androgens.
2. Adrenal medulla : It lies inner to cortex and secretes the following two hormones :
(a) Epinephrine )b) Norepinephrine.