You are here: Home Information Hormones Your hormones Hormones are chemicals which circulate in the blood stream and spread around the body to carry messages or signals to different parts of the body.
Hormones produced by the pituitary gland The two sections of the pituitary gland produce a number of different hormones which act on different target glands or cells. ACTH is also known as corticotrophin. TSH Thyroid Stimulates the thyroid gland to secrete its own hormone, which is called thyroxine. TSH is also known as thyrotrophin. Stimulates the ovaries to produce oestrogen and progesterone and the testes to produce testosterone and sperm.
LH and FSH are known collectively as gonadotrophins. PRL Breasts Stimulates the breasts to produce milk. This hormone is secreted in large amounts during pregnancy and breast feeding, but is present at all times in both men and women. GH All cells in the body Stimulates growth and repair. Research is currently being carried out to identify the functions of GH in adult life.
MSH Exact role in humans is unknown. ADH Kidneys Controls the blood fluid and mineral levels in the body by affecting water retention by the kidneys. This hormone is also known vasopressin or argenine vasopressin AVP. Oxytocin Uterus Breasts Affects uterine contractions in pregnancy and birth and subsequent release of breast milk.
Control of hormone production is monitored continuously and regulated using feedback loops. Although there are a number of different hormones they can be split into two main types: hormones that tell the pituitary to switch on production of a hormone a releasing hormone hormones that tell the pituitary to switch off production of a hormone an inhibiting hormone. Hormones produced by other glands in the body In total more than hormones or hormone-like substances have been discovered.
Cells here produce:. The pituitary gland is an important gland in the body and the hormones it produces carry out varied tasks and regulate the function of many other organs.
This means that the symptoms experienced when the pituitary gland stops working correctly can be different, depending on which hormone is affected. A cell type may divide and then form a small benign lump, known as a tumour, and the patient may then suffer from the effects of too much of the hormone the cell produces.
If the tumour grows very large, even though still benign, it may squash the surrounding cells and stop them working hypopituitarism , or push upwards and interfere with vision — a visual field defect. Very occasionally, the tumour may expand sideways and cause double vision as it affects the nerves that control eye movements. It should be emphasised that even when these tumours are large, they very rarely spread to other parts of the body. About Contact Events News. Search Search. You and Your Hormones.
Students Teachers Patients Browse. Human body. Abstract The pituitary gland is an important component of the endocrine system, and together with the hypothalamus, exerts considerable influence over the functions of other endocrine glands.
Publication types Research Support, Non-U. Gov't Review.
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