Adrenal gland: Difference between revisions
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The adrenal gland is | The adrenal gland is situated on top of each one of the [[Kidneys|kidneys]]. They weigh 8-10g in weight and there is one on each side of each kidney. The Adrenal Gland produces a number of [[Hormones|hormones]] such as [[Epinephrine|epinephrine]]. There are three main areas of the [[Adrenal_gland|adrenal gland]], the [[Medulla]], [[Cortex]] and [[Capsule]]. The capsule surrounds the adrenal gland and gives strength. The cortex can be seperated into three sections; the [[Zona glomerulosa]], the [[Zona fasciculata]] and the [[Zona reticularis|Zona reticularis]]. The medulla is the site of synthesis of [[Epinephrine|epinephrine]] and different zones of the cortex produce different [[Steroids|steroids]]. | ||
The [[Zona glomerulosa|Zona glomerulosa]] is the outer layer of the cortex; there is a lack of [[17 alpha hydroxylase|17 alpha hydroxylase]] here meaning that the Zona glomerulosa produces [[Aldosterone|aldosterone]]. | |||
The [[Zona fasiculata|Zona fasiculata]] and the [[Zona reticularis|Zona reticularis]] are the middle and innermost layers of the cortex. They both produce [[cortisol|cortisol]] and [[androgens|androgens]]. | |||
[[Hormones|Hormones]] are not stored in [[Vesicles|vesicles]], they are made on demand as the cortex is very rich in [[Mitochondria|mitochondria]] | |||
Latest revision as of 11:29, 13 January 2013
The adrenal gland is situated on top of each one of the kidneys. They weigh 8-10g in weight and there is one on each side of each kidney. The Adrenal Gland produces a number of hormones such as epinephrine. There are three main areas of the adrenal gland, the Medulla, Cortex and Capsule. The capsule surrounds the adrenal gland and gives strength. The cortex can be seperated into three sections; the Zona glomerulosa, the Zona fasciculata and the Zona reticularis. The medulla is the site of synthesis of epinephrine and different zones of the cortex produce different steroids.
The Zona glomerulosa is the outer layer of the cortex; there is a lack of 17 alpha hydroxylase here meaning that the Zona glomerulosa produces aldosterone.
The Zona fasiculata and the Zona reticularis are the middle and innermost layers of the cortex. They both produce cortisol and androgens.
Hormones are not stored in vesicles, they are made on demand as the cortex is very rich in mitochondria