PARACHORDAL Meaning and
Definition
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Parachordal is an adjective that refers to or relates to the structures situated alongside or adjacent to the notochord in the embryonic stage of vertebrates. The term is predominantly utilized in the field of developmental biology to describe specific anatomical elements or processes during early vertebrate development.
In vertebrate embryos, the notochord is a fundamental structure that acts as a primitive axial skeleton. The parachute structures, or the parachordals, are located directly adjacent to the notochord, forming part of the vertebral column. These elements play a crucial role in providing structural support and stability to the developing embryo.
Parachordal development is a highly regulated and complex process, involving various cellular interactions and signaling pathways. Errors or abnormalities during this stage can lead to severe developmental disorders or malformations. Studies in developmental biology focus on understanding the molecular mechanisms underlying parachordal formation and their contributions to overall vertebrate development.
In summary, the term "parachordal" describes the anatomical structures or processes adjacent to the notochord during vertebrate embryonic development. This term is mainly used within the context of developmental biology, where researchers seek to uncover the intricacies of parachordal formation and its influence on overall vertebrate growth and morphogenesis.
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Alongside the anterior portion of the notochord in the embryo; noting the two cartilaginous bars on either side, which enter into the formation of the base of the skull.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PARACHORDAL
- oarachordal
- larachordal
- -arachordal
- 0arachordal
- pzrachordal
- psrachordal
- pwrachordal
- pqrachordal
- paeachordal
- padachordal
- pafachordal
- patachordal
- pa5achordal
- pa4achordal
- parzchordal
- parschordal
- parwchordal
- parqchordal
- paraxhordal
- paravhordal
Etymology of PARACHORDAL
The word "parachordal" is derived from two components: "para-" and "chordal".
The prefix "para-" comes from the Greek word "para", meaning "beside" or "alongside". This prefix is often used in scientific terminology to indicate a parallel or secondary structure.
The term "chordal" is derived from "chord", which has its roots in the Latin word "chorda" meaning "cord" or "string". In anatomy, "chord" refers to a structure resembling a cord or string-like formation.
When combined, "parachordal" refers to a structure located alongside or parallel to a cord-like formation. In medical and biological contexts, the term is commonly used to describe specific structures or features related to the skull, brain, and spinal cord.
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