Glands in the body release fluids or hormones that play an important role in maintaining the health of the body. Glands are classified as canalized and canalless glands. Channeled glands, also called exocrine glands, excrete some chemicals through channels. Ductless glands are called endocrine glands. Glands receive signals from the brain to release useful fluids.
Endocrine glands release hormones directly into the bloodstream. Hormones are chemical messengers that facilitate communication between the brain and organs. Because the nervous system uses the nerves to send the required information, the glands in the human body use blood vessels as information channels. Here is an overview of the endocrine system.
The pituitary gland, located at the base of the skull, is called the "master gland." It controls the functions of other ductless glands. This tiny pea-shaped gland is one of the most important parts of our body. It is divided into anterior and posterior pituitary glands.
The adrenals look like triangular hats on the kidneys. The length of an adrenal gland is about an inch or two and it weighs only a fraction of an ounce. Although these glands are small, they excrete nearly three dozen hormones! The main functions of the adrenals include performing the metabolic processes and assisting the body in dealing with stress.
The thyroid gland in the neck looks like a butterfly. It weighs less than an ounce. The main function of the thyroid, which is located under our voice box, is the regulation of body metabolism. The body functions are severely impaired if the thyroid gland is not functioning well. Overactive or underactive thyroid causes several health problems.
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