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Chemical Control and Coordination Adrenal Gland These are also called suprarenal glands. $>$ These lie superior to each kidney. $>$ In an adult, each adrenal gland is $3-5\mathrm{cm}$ in height, $2-3\mathrm{cm}$ in width, and a little less than $1\mathrm{cm}$ thick, with a mass of 3.5-5 $\mathrm{g}$. In Amphibians Chemical Control and Coordination neet During embryonic development, adrenal glands differentiate into two structurally and functionally distinct regions: - Large, peripherally located adrenal cortex (80-90\% of the gland) - Small, centrally located adrenal medulla. Adrenal Gland Blood rupply. $>$ A connective tissue capsule covers it. $>$ The adrenal glands, like the thyroid gland, are highly vascularized. $>$ The adrenal cortex produces steroid hormones that are essential for life. $>$ Complete loss of adrenocortical hormones leads to death due to dehydration and electrolyte imbalances in a few days to a week. Adrenâ Cortex $\to$ has Lteroidogenic Glls $\begin{array}{l}\downarrow \text{ (mesoderm) }\\ \text{ Essentiag for Survival }\text{ (orticosteroids }\\ \text{ of animal. }\to \text{ Mineralocorficoids }\\ \to \text{ Giucocorticoids }\end{array}$

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Updated on: Dec 18, 2022