Trabecula
Trabecula
Trabecula (pronunciation: trəˈbɛkjʊlə) is a term used in various fields of medicine, primarily in anatomy and histology. It refers to a small, often microscopic, tissue element in the form of a small beam, strut or rod that supports or anchors a particular structure.
Etymology
The term "trabecula" is derived from the Latin word "trabecula" which means "little beam". It was first used in medical terminology in the 17th century.
Anatomy
In anatomy, trabeculae are often found in various parts of the body. They are structural components of various organs and tissues, including the spleen, lymph nodes, and certain glands. In the skeletal system, trabeculae are the thin columns and plates of bone that create a network in spongy bone, providing structural support and flexibility.
Histology
In histology, trabeculae refer to the connective tissue partitions which divide an organ into lobules. For example, in the liver, trabeculae divide the organ into numerous hexagonal lobules.
Related Terms
- Trabecular bone: A type of bone tissue found in the interior of bones, which is highly vascular and contains red bone marrow.
- Trabecular meshwork: A network of tiny canals in the eye, through which aqueous humor drains.
- Trabecular carcinoma: A rare type of breast cancer that has a trabecular growth pattern.
- Trabeculectomy: A surgical procedure used in the treatment of glaucoma to relieve intraocular pressure.
External links
- Medical encyclopedia article on Trabecula
- Wikipedia's article - Trabecula
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