Endocrine system: Difference between revisions
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The endocrine system is predominantly a system of glands, [[Hormone|hormone]] secreting tissues and cells, normally as part of an [[Autonomic Nervous System|autonomic]] response. Examples of its importance include controlling [[Glucose|blood glucose levels]], growth hormones and ovulation. The [[Hormones|hormones]] that are secreted can only interact with cells that have the correct [[Receptors|receptors]] on their cell surface membrane. The receptors interact with the hormone and undergo a conformational change leading to a signal cascade within the cell. Culminating in a response by the cell. The endocrine system can be quite slow at producing a response; this is due to the hormones travelling long distances by [[Diffusion|diffusion]] in the blood. | The endocrine system is predominantly a system of glands, [[Hormone|hormone]] secreting tissues and cells, normally as part of an [[Autonomic Nervous System|autonomic]] response. Examples of its importance include controlling [[Glucose|blood glucose levels]], growth hormones and ovulation. The [[Hormones|hormones]] that are secreted can only interact with cells that have the correct [[Receptors|receptors]] on their cell surface membrane. The receptors interact with the hormone and undergo a conformational change leading to a signal cascade within the cell. Culminating in a response by the cell. The endocrine system can be quite slow at producing a response; this is due to the hormones travelling long distances by [[Diffusion|diffusion]] in the blood. | ||
The main two categories of tissues are endocrine, a ductless gland or single cell; or [[Exocrine]], a gland that releases the hormones through ducts. The [[Pituitary gland| | The main two categories of tissues are endocrine, a ductless gland or single cell; or [[Exocrine]], a gland that releases the hormones through ducts. The [[Pituitary gland|pituitary gland]] is at the base of the brain and has an important role in controlling the endocrine system by both releasing its own hormones and signalling other glands to do the same. Other glands include the [[Thyroid gland|thyroid]], the [[Adrenal gland|adrenal gland]] and the [[Pancreas|pancreas]]. <ref>inner body: Endocrine system, accessed by following - http://www.innerbody.com/image/endoov.html</ref> | ||
=== References === | === References === | ||
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Revision as of 17:32, 3 December 2017
The endocrine system is predominantly a system of glands, hormone secreting tissues and cells, normally as part of an autonomic response. Examples of its importance include controlling blood glucose levels, growth hormones and ovulation. The hormones that are secreted can only interact with cells that have the correct receptors on their cell surface membrane. The receptors interact with the hormone and undergo a conformational change leading to a signal cascade within the cell. Culminating in a response by the cell. The endocrine system can be quite slow at producing a response; this is due to the hormones travelling long distances by diffusion in the blood.
The main two categories of tissues are endocrine, a ductless gland or single cell; or Exocrine, a gland that releases the hormones through ducts. The pituitary gland is at the base of the brain and has an important role in controlling the endocrine system by both releasing its own hormones and signalling other glands to do the same. Other glands include the thyroid, the adrenal gland and the pancreas. [1]
References
- ↑ inner body: Endocrine system, accessed by following - http://www.innerbody.com/image/endoov.html