It is responsible for the production of important hormone such as glucocorticoid that is a cortisol this zone is about 80% of the renal cortex in this zone cells are arranged in columns radially orientated towards the medulla in this zone cells contain abundant mitochondria and smooth endoplasmic reticulum the largest of the three zones of cortex present between the zone glomerulosa and zone reticularis is known by the name of zone fasciculata.This zone is involved in the production of hormone aldosterone a mineralocorticoid that is produced by the action of enzyme aldosterone synthase and aldosterone plays a very important and crucial role in long term regulation of the blood pressure zone glomerulosa is the outermost layer of the adrenal cortex.The location of the adrenal gland is such that they are present below the diaphragm and are attached to the crura of the diaphragm by the renal fascia The adrenal glands are separated from the kidneys by through a thin and weak wall of connective tissues. A fatty capsule surrounds the adrenal gland which also surrounds the kidneys and lies within the renal fascia. These glands are of yellowish color in an adult human both of the adrenal glands weight about 7 -10 grams. In humans adrenal glands are 1.0 cm thick 5.0 cm in length and are 3.0 cm width. In humans adrenal glands are located on both sides of the back in the retroperitoneum above and slightly medial to the kidneys both of the adrenal glands are of pyramidal shape whereas the left adrenal gland is slightly larger than the right one. Adrenal glands are also known by the name of suprarenal glands as they are present above the kidneys both of the adrenal glands are divided into two regions that are the upper region that is known as the adrenal cortex whereas the lower region is known as the adrenal medulla.
Adrenal gland are one of the most important endocrine gland of the body.
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