Trabeculae
Trabeculae
Trabeculae (pronunciation: trəˈbɛkjʊliː) are small, often microscopic, tissue structures found in various parts of the body, including the heart, bones, spleen, and lymph nodes.
Etymology
The term "trabeculae" is derived from the Latin word "trabecula", which means "small beam". This term was used in ancient Roman architecture to refer to the supporting structures of a building. In a similar way, trabeculae in the body provide structural support to various organs and tissues.
Function
In the bones, trabeculae form a network of supporting structures that provide strength and flexibility. They are a key component of spongy bone, which is found at the ends of long bones and in the interior of vertebrae.
In the heart, trabeculae are found in the ventricles and help to increase the force of contraction. They also play a role in conducting electrical impulses.
In the spleen and lymph nodes, trabeculae provide a framework that supports the organ's function in the immune system.
Related Terms
- Cancellous bone: Another term for spongy bone, which is characterized by a network of trabeculae.
- Trabecular bone: This term refers specifically to the trabeculae found in bone.
- Trabecular meshwork: A network of tiny channels in the eye, through which aqueous humor drains out of the eye.
- Trabecular myocardium: The trabeculae found in the heart.
External links
- Medical encyclopedia article on Trabeculae
- Wikipedia's article - Trabeculae
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