Tubule
Tubule
Tubule (pronunciation: /ˈtjuːbjuːl/) is a term used in anatomy and biology to describe a small, tube-like structure present in various organs and tissues of the body.
Etymology
The term 'tubule' is derived from the Latin word 'tubulus', which means a small tube.
Definition
A tubule is a small tube or tubular structure, especially one that carries fluid in a living organism. In the human body, tubules are found in various organs and tissues, including the kidneys, the liver, and the testes.
Types of Tubules
There are several types of tubules in the human body, including:
- Renal tubule: A part of the nephron in the kidney where the filtrate from the glomerulus enter. It plays a crucial role in the reabsorption and secretion of substances like glucose, ions, and water.
- Seminal tubule: These are located in the testes and are responsible for the production of sperm.
- Bile tubule: Also known as bile ductules, they are part of the liver's biliary system and transport bile from the liver to the gallbladder.
- Tubules of the sweat glands: These are coiled tubular structures that produce sweat, which is then transported to the skin surface.
Related Terms
- Tubular: Something that is shaped like a tube or has a tubular structure.
- Tubulogenesis: The process by which cells form tubular structures, a key aspect of organ development.
- Tubulointerstitial: Referring to the area of the kidneys that includes the renal tubules and the interstitial tissue surrounding them.
External links
- Medical encyclopedia article on Tubule
- Wikipedia's article - Tubule
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