EXTRAPARENCHYMAL Meaning and
Definition
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Extraparenchymal is an adjective used in the field of anatomy and biology to describe structures or components that lie outside or are separate from the parenchymal tissue in an organ. Parenchyma refers to the functional tissue of an organ, which performs specific tasks or functions.
In the context of organs, extraparenchymal structures are typically supportive or connective in nature and are responsible for maintaining the structural integrity of the organ. These structures are found surrounding or alongside the parenchymal tissue and often include blood vessels, nerves, connective tissue, and other supporting elements.
For example, in the brain, extraparenchymal structures would refer to the components that lie outside the functional brain tissue itself, such as the meninges (protective membranes surrounding the brain), the blood vessels supplying the brain, and the cerebrospinal fluid-filled spaces between the meninges.
The term extraparenchymal can also be used to describe pathological conditions or occurrences that are located outside of the functional tissue of an organ. For instance, in the case of a brain tumor, extraparenchymal involvement would mean that the tumor has spread beyond the normal brain tissue and has infiltrated the supporting structures or surrounding areas.
In summary, extraparenchymal refers to structures or phenomena outside or separate from the functional tissue of an organ. Its usage helps to differentiate and describe the non-functional, supporting components or pathological occurrences associated with an organ.
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Unrelated to the parenchyma of an organ, belonging rather to the stroma.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for EXTRAPARENCHYMAL
- extraparenchyman
- extraparenchymam
- extrapairnchymal
- extrapearnchymal
- extwraparenchymal
- e xtraparenchymal
- ex traparenchymal
- ext raparenchymal
- extr aparenchymal
- extrapa renchymal
- extrapar enchymal
- extrapare nchymal
- extraparen chymal
- extraparenc hymal
- extraparench ymal
- extraparenchy mal
- extraparenchym al
- extraparenchyma l
Etymology of EXTRAPARENCHYMAL
The word "extraparenchymal" is composed of two main linguistic components: "extra-" and "parenchymal".
1. "Extra-" is a prefix derived from Latin, meaning "outside", "beyond", or "in addition to". It is used to indicate something occurring or being located beyond or outside a specific area or boundary.
2. "Parenchymal" is an adjective derived from the noun "parenchyma", which originates from the Greek words "para" (meaning "beside" or "next to") and "enchyma" (meaning "infusion" or "influx"). "Parenchyma" generally refers to the functional and essential tissue of an organ, often distinguished from the supportive and connective tissue. It is commonly associated with plant anatomy, where it refers to the specific cellular tissue found in roots, stems, and leaves.
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