Tubular gland

Tubular gland is a type of exocrine gland that is characterized by its tubular structure. It is one of the two main types of exocrine glands, the other being acinous glands. Tubular glands are found in many parts of the body and play a crucial role in various bodily functions.

Etymology

The term "tubular gland" is derived from the Latin word "tubulus", which means "small tube", and the Greek word "gland", which means "acorn". This is in reference to the tube-like structure of these glands.

Structure

Tubular glands are named for their long, tube-like structure. They are composed of a single layer of epithelial cells that line the inner surface of the gland. The cells are arranged in a circular pattern around a central lumen, or cavity, where the gland's secretions are stored until they are released.

Function

Tubular glands produce and secrete various substances, depending on their location in the body. For example, in the stomach, tubular glands secrete gastric juice, which aids in digestion. In the skin, they secrete sweat to help regulate body temperature.

Types

There are several types of tubular glands, including:

• Simple tubular gland: This type of gland consists of a single, unbranched tube. An example is the intestinal gland.
• Simple coiled tubular gland: This type of gland is similar to the simple tubular gland, but the tube is coiled. An example is the sweat gland.
• Compound tubular gland: This type of gland consists of multiple, branched tubes. An example is the gastric gland.

Related Terms

• Exocrine gland: A gland that secretes its products into ducts that lead to the exterior of the body.
• Acinous gland: A type of exocrine gland that is characterized by its spherical structure.

See Also

• Endocrine gland
• Gland
• Secretion

Tubular gland Resources
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