what is gland explain in detail?
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Answered by
2
hey mate ✨✨✨✨✨
your answer,,,,,
Any cell, tissue or organ that has a secretion is called a gland.
The secretion can be sweat, milk, enzymes, mucus, hormones, sebum etc.
I hope it will help you ✨✌️✨✌️✨✌️
your answer,,,,,
Any cell, tissue or organ that has a secretion is called a gland.
The secretion can be sweat, milk, enzymes, mucus, hormones, sebum etc.
I hope it will help you ✨✌️✨✌️✨✌️
Answered by
0
1.) Specialized epithelial cells useful in secretion of substances are called Glandular cells.
2.) The structure formed by such a group of cells is called a gland.
3.) Based on mode of secretion, glands are of two types, endocrine glands and exocrine glands.
4.) Endocrine glands : These glands pour their secretions directly into the blood stream. They do not have ducts to transport their secretions. Hence they are known as ductless glands.
E.g. - Pituitary gland, thyroid gland, parathyroid gland, Islets of Langerhans, adrenal glands, ovary, testis.
5.) Exocrine gland : These are glands with ducts. The secretions are transported through specific ducts or tubes.
E. g. - Salivary glands, tear glands, intestinal and gastric glands, etc.
6.) Exocrine glands are further classified into two types on the basis of the arrangement of cells and number of cells --- Unicellular glands and Multicellular glands.
7.) Unicellular : A specialised epithelial cell is modified to form a single glandular cell called goblet cell.
Goblet cell secretes mucus which acts as a lubricant. Goblet cells are found in the lining of digestive, urinary, respiratory and reproductive tracts.
8.) Multicellular : Many glandular cells combine together to form a distinct microscopic or macroscopic organ. For example, Sudoriferous glands (sweat glands), Sebaceous glands (oil glands), Salivary glands, etc.
9.) Glands are also classified on the basis of their duct type (branched or unbranched) and on the basis of their secretory portions (simple or compound).
2.) The structure formed by such a group of cells is called a gland.
3.) Based on mode of secretion, glands are of two types, endocrine glands and exocrine glands.
4.) Endocrine glands : These glands pour their secretions directly into the blood stream. They do not have ducts to transport their secretions. Hence they are known as ductless glands.
E.g. - Pituitary gland, thyroid gland, parathyroid gland, Islets of Langerhans, adrenal glands, ovary, testis.
5.) Exocrine gland : These are glands with ducts. The secretions are transported through specific ducts or tubes.
E. g. - Salivary glands, tear glands, intestinal and gastric glands, etc.
6.) Exocrine glands are further classified into two types on the basis of the arrangement of cells and number of cells --- Unicellular glands and Multicellular glands.
7.) Unicellular : A specialised epithelial cell is modified to form a single glandular cell called goblet cell.
Goblet cell secretes mucus which acts as a lubricant. Goblet cells are found in the lining of digestive, urinary, respiratory and reproductive tracts.
8.) Multicellular : Many glandular cells combine together to form a distinct microscopic or macroscopic organ. For example, Sudoriferous glands (sweat glands), Sebaceous glands (oil glands), Salivary glands, etc.
9.) Glands are also classified on the basis of their duct type (branched or unbranched) and on the basis of their secretory portions (simple or compound).
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