The term "concentric lamella" refers to the concentric layers of bone tissue found in the vertebrate skeleton. The word "concentric" is pronounced /kənˈsɛntrɪk/, with emphasis on the second syllable, and means "having a common center". "Lamella" is pronounced /ləˈmɛlə/, with emphasis on the first syllable, and means "a thin layer or plate". Together, "concentric lamella" refers to the layers of bone tissue that surround a common central point, forming the structure of the bone. Proper understanding and spelling of scientific terms such as this are crucial to clear communication in the sciences.
Concentric lamella refers to a distinctive structural formation typically found in certain biological or geological materials. It consists of concentrically arranged layers or plates that are sequentially deposited or formed around a central axis or point.
In biology, concentric lamella is commonly observed in the structure of bones and teeth. It refers to the series of concentric rings or layers of bone tissue or dentin within these structures. These lamellae are formed by the periodic growth and deposition of mineralized tissue, such as hydroxyapatite, by specialized cells called osteoblasts in bones or odontoblasts in teeth. Each lamella represents a discrete period of growth and contains collagen fibers that provide strength and support to the structure.
In geology, concentric lamella formations can occur in various mineral deposits. They are often seen in the growth patterns of certain minerals, such as agate or calcite, that are formed through crystallization or deposition processes. The concentric arrangement of lamellae is a result of repetitive or episodic mineral growth over time, leading to the formation of distinct layers or bands within the mineral structure.
Concentric lamella formations have scientific significance as they provide important insights into the growth and development of biological structures and mineral formations. The study of these structures helps to understand the processes involved in the formation and organization of materials at the microscopic or macroscopic level.
One of the curved plates of bone surrounding the central canal in the Haversian system.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "concentric" comes from the Latin word "concentricus", which is derived from the prefix "con" meaning "together" and the word "centrum" meaning "center". It refers to objects or shapes that share the same center.
The word "lamella" comes from the Latin word "lamella", meaning "small plate" or "thin layer". It is a diminutive form of "lama", which means "blade", "thin plate", or "slender reed". In the context of biology, "lamella" refers to a thin layer or sheet-like structure.
Therefore, "concentric lamella" is a term that combines the meanings of these two words. It describes a structure, often found in biology, where there are thin layers or plates arranged in a concentric manner around a central point or axis.