What is a gland, what does it look like, and where is it

You understand the word gland, the moon is the meat, the spring is the water, which means the organ that can secrete fluid. Human glands are divided into 2 categories, those with ducts are called exocrine glands, such as sweat glands, stomach glands, liver, etc., and those without ducts are called endocrine glands, such as thyroid, adrenal glands, pancreatic islets, gonads, etc., and the substances secreted by endocrine glands are called hormones. So not all glands are the same, and they don't all grow in one place.

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There are many types of glands. The endocrine glands do not have ducts, they secrete hormones. Exocrine glands have ducts, such as salivary glands and sweat glands. The only different gland is the pancreas, which is both an exogenous and an endocrine gland.

different shapes, in various parts of the body. It is used to secrete glandular fluid.

Glands (glands) are tissues in an animal that are capable of producing special substances, mainly hormones (hormones), which are transported through the bloodstream to the body or exocrine glands. “

Glands are tissues that functionally secrete bodily fluids such as digestive juices, lymphatic fluids, etc.

The appearance is uncertain.

What you are asking is really vague, there are many glands in the human body, such as thyroid, adrenal glands, etc.

Glands are divided into endocrine glands, exocrine glands, and also include neuroendocrine cells.

There are single-celled glands and multicellular, exocrine glands with many ducts.

Endocrine glands are generally just a clump of cells that don't have a special shape and need to be stained to be distinguished.

There are neuroendocrine cells in the hypothalamus, thyroid glands in the neck, thymus in the chest, and digestive glands that secrete pancreatic juice in the gastrointestinal tract, adrenal glands in the upper side of the kidneys, and the prostate, too many and pancreatic islets Why does insulin hypercagon and somatostatin are small clumps of cells next to the pancreas.

The small ones have only a few cells, and the big ones like the pancreas have formed separate organs.

Gastric juice is secreted by the main cells, parietal cells, and neck mucus cells scattered on the lining of the stomach.

The endocrine glands secrete hormones that regulate the body's metabolism, while the exocrine gland secretes secretions such as sweat and mucus that are excreted from the body.

Glands in the human body can be divided into two categories, one is the gland whose secretion is discharged through the duct is called exocrine gland, and the other type of gland is called hormone, which is called endocrine gland.

Endocrine glands: thyroid glands, adrenal glands.

Pituitary gland, pancreatic islets, etc. The endocrine glands have no excretory ducts, and the glandular cells are arranged in a lack of polarity, and are mostly clustered into clumps or cords. The secretions secreted by the endocrine glands are called hormones.

Its secretions directly enter the blood vessels and lymph surrounding the cells, and are transported by the blood and lymph to various tissues or organs. Endocrine glands and endocrine tissues together make up the endocrine system.

Through the regulation of body fluids, it plays an important role in regulating all aspects of the body's functions. Exocrine gland: It is a gland that carries out exocrine, which is generally composed of two parts, that is, the gland surrounded by the glandular epithelium and the duct that excretes secretions, that is, the excretory duct, so it is also called the ductal gland.

Exocrine glands include salivary glands, sweat glands, and sebaceous glands.

Liver, mammary glands.

Pancreas, etc. (The pancreas is divided into endocrine and exocrine parts, most of the pancreas belong to the exocrine department, but the islets belong to the endocrine department). Exocrine glands have excretory ducts, called glandular ducts, through which their secretions are transported to the corresponding tissues or organs to play their regulatory role (generally excretory).

There are glands in everyone's body, so what are glands and what are they in general?

The glands are mainly located in the anterior and lower part of the ear, above to the zygomatic arch, anterior to the back of the masseter muscle and to the upper edge of the sternocleidomastoid muscle, which is the largest pair of salivary glands in the human body, and it has a parotid duct that opens along the buccal mucosa corresponding to the second molar of the oral cavity. When the parotid gland is inflamed, there is usually swelling around the underside of the ear.

Glands are tissues in the animal or human body that produce special substances, mainly hormones (formerly known as hormones), which are transported through the bloodstream to the body or exocrine glands. There are many ways to classify "glands", which can be divided according to the location and function (function) of the tissue, and the classification is not exactly the same in anatomical and physiological terms.

The glands are not in the part of the human body, the glands are a type of tissues and organs in the human body, and there are many glands in the human body, such as the thyroid gland or the breast, which are all glands. Glands have some secretory functions, including some glands that control endocrine, such as thyroid hormones secreted by the thyroid gland, which is an important endocrine hormone. There are also exocrine glands, such as the mammary glands, which can produce milk; The pancreas can secrete digestive juices such as pancreatic juice.

There are also many digestive glands in the system, and all organs that can secrete digestive juices contain some glandular tissues, such as the liver, which is the largest digestive gland in the human body, which can secrete bile. Therefore, the glands are not confined to a certain part of the human body, but exist in many parts of the human body, multiple tissues and organs.

1. Glands refer to tissues distributed throughout the body that can secrete special substances, such as the oral cavity, respiratory tract and other glands are densely distributed. In particular, in clinical practice, it may refer to specific glands, that is, adenoids, which are mainly located in the nasopharynx behind the nose and above the throat, and usually the adenoids in infants and children are hypertrophied.

2. Some children's glandular hypertrophy can block the nasal cavity, causing runny nose, nasal blockage, etc., causing sinusitis. If hypertrophy is very noticeable, it may cause an adenoid facial, usually adenoidal atrophy at the age of 10-14 years. If it does not atrophy and causes symptoms, surgical excision is usually done.