Which endocrine gland secretes steroid hormones in response to stress

There are several additional endocrine glands that reside in the abdomen, with major glands including the pancreas and adrenal glands. The pancreas, which is located behind the stomach, regulates levels of sugars within the bloodstream through the use of insulin and other hormones. The adrenal glands sit atop the kidneys and produce adrenaline, as well several steroid hormones. Although reproductive organs, including the ovaries (in women) and the testes (in men), serve other functions, they can also be considered as endocrine glands because they produce hormones as well.

The two adrenal glands are triangular-shaped glands located on top of each kidney. The adrenal glands are made up of two parts. The outer part is called the adrenal cortex , and the inner part is called the adrenal medulla. The outer part produces hormones called corticosteroids, which regulate the body's metabolism, the balance of salt and water in the body, the immune system , and sexual function. The inner part, or adrenal medulla, produces hormones called catecholamines (for example, adrenaline). These hormones help the body cope with physical and emotional stress by increasing the heart rate and blood pressure.

The endocrine system is regulated by feedback in much the same way that a thermostat regulates the temperature in a room. For the hormones that are regulated by the pituitary gland , a signal is sent from the hypothalamus to the pituitary gland in the form of a "releasing hormone," which stimulates the pituitary to secrete a "stimulating hormone" into the circulation. The stimulating hormone then signals the target gland to secrete its hormone. As the level of this hormone rises in the circulation, the hypothalamus and the pituitary gland shut down secretion of the releasing hormone and the stimulating hormone, which in turn slows the secretion by the target gland. This system results in stable blood concentrations of the hormones that are regulated by the pituitary gland.

By the 1920s, thyroid surgery was commonplace and the great American surgeon William Halstead referred to the operation of thyroidectomy as a " feat which today can be accomplished by any competent   operator without danger of mishap". This statement is true today only if the surgeon specialises in thyroid surgery. Kendall had patented his discovery but as it was a free acid it was not well absorbed by the body. Harrington's synthetic product was also costly, so thyroid replacement therapy in the 1960s was mainly desiccated animal thyroid.

Which endocrine gland secretes steroid hormones in response to stress

which endocrine gland secretes steroid hormones in response to stress

By the 1920s, thyroid surgery was commonplace and the great American surgeon William Halstead referred to the operation of thyroidectomy as a " feat which today can be accomplished by any competent   operator without danger of mishap". This statement is true today only if the surgeon specialises in thyroid surgery. Kendall had patented his discovery but as it was a free acid it was not well absorbed by the body. Harrington's synthetic product was also costly, so thyroid replacement therapy in the 1960s was mainly desiccated animal thyroid.

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