Hormones

Hormones

A hormone is nothing but chemicals that carry messages from glands to cells within organs in the body. They also maintain chemical level in the blood stream .with the help of this, it is easy to achieve homeostasis, which is maintain balance within the body. These chemical has been categorized in two types, known as steroids and peptides. The word "hormone" means “to spur on. “Comes from a Greek word that means "to spur on." This reflects how hormones work with   catalysts for chemical changes at the cellular level which are necessary for growth, development and energy.
As we know that members of the endocrine system, glands manufacture hormones. First these chemicals circulate in the bloodstream and wait for target cell, which is their intended destination. The target cell has a receptor that can be activated only by a particular type of hormone, after which the cell knows to start a function within its walls. Genes might get activated, or energy production resumed. An autocrine hormone acts on secreting gland, and a paracrine hormone acts on nearby but unrelated cells.
Steroids are sex hormones that are related to sexual fertility and maturation. Steroids are made up of cholesterol, either by the placenta when the body is still inside the mother's womb.
Cortisol is another hormone that is an example of steroid hormones, breaks down damaged tissue so that it can be replaced. Steroids hormones determine physical development and fertility cycles through old age. The person can sometimes supplement them pharmaceutically, as with estrogen and progesterone, if a person's body is not synthesizing the correct steroidal hormones.

Peptides used to regulate other function in the body, such as sleep and blood sugar concentration. They are made up of amino acid , so that they sometimes referred to as protein hormones. Hormones help the body burn fat and build muscles. Peptide hormone, insulin, converts sugar into cellular energy.
Hormones are perfectly manage homeostasis because of negative feedback cycles. The body's is to keep the concentration of a certain chemical, such as testosterone, at a constant level for a certain period of time. A change in conditions causes a response that returns the conditions to their original state using negative feedback.

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