PROTOVERTEBRA Meaning and
Definition
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Protovertebra refers to the earliest form of a vertebra or a segmental unit found in the developing spine of an embryo. It serves as the basic building block of the vertebral column. During early embryonic development, the protovertebra condenses and differentiates into the more complex vertebrae that make up the spine in higher vertebrates.
Protovertebrae are formed through a process known as somitogenesis, where somites, which are bilaterally paired blocks of cells, are formed on either side of the neural tube. The somites then divide into multiple segments, which will further develop into the various structures of the body, including the protovertebrae.
These primitive segments initially consist of mesenchyme, a type of embryonic connective tissue, and play a crucial role in establishing the axial skeleton. As development progresses, the protovertebrae give rise to the structures of a functional vertebra, such as the vertebral body, vertebral arch, and the intervertebral discs. They also contribute to the formation of other related structures, including the ribs and associated musculature.
The process of protovertebrae formation and subsequent vertebral development is highly conserved among vertebrates, indicating its fundamental importance in the evolution and growth of the backbone. Understanding the development of protovertebrae can provide valuable insights into the pathogenesis of congenital spinal defects and other disorders affecting the vertebral column.
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A primitive vertebra or segment in the notochord; somite, metamere.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PROTOVERTEBRA
- orotovertebra
- lrotovertebra
- -rotovertebra
- 0rotovertebra
- peotovertebra
- pdotovertebra
- pfotovertebra
- ptotovertebra
- p5otovertebra
- p4otovertebra
- pritovertebra
- prktovertebra
- prltovertebra
- prptovertebra
- pr0tovertebra
- pr9tovertebra
- prorovertebra
- profovertebra
- progovertebra
- proyovertebra
Etymology of PROTOVERTEBRA
The word "Protovertebra" is derived from two components: "Proto-" and "vertebra".
1. "Proto-" is a prefix borrowed from the Greek language, meaning "first" or "primitive". It is commonly used in English to indicate something that is the earliest or original form of a particular concept or structure.
2. "Vertebra" comes from the Latin word "vertebra", which means a joint or a link. In anatomy, it specifically refers to the bones that form the spine or backbone, which are connected to each other.
When combined, "Protovertebra" signifies the earliest or primitive form of a vertebral structure. It is often used to describe the basic building blocks or pre-evolutionary components of vertebrate skeletons.
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