SUBARACHNOID Meaning and
Definition
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Subarachnoid is an adjective that pertains to or is related to the subarachnoid space, a specific region within the central nervous system. The term is formed by combining the prefix "sub-" which means under or below, with "arachnoid," referring to the arachnoid mater, one of the three membranes that surround and protect the brain and spinal cord.
Subarachnoid commonly describes structures or events that occur beneath or within the subarachnoid space, a crucial component of the meninges. The subarachnoid space is located between the arachnoid mater and the pia mater, filled with cerebrospinal fluid (CSF), a clear and colorless fluid that cushions and nourishes the brain and spinal cord. It serves as a protective barrier, separating these vital organs from the surrounding bone and tissue.
Medical conditions associated with subarachnoid region include subarachnoid hemorrhage, which is bleeding into the subarachnoid space typically caused by rupture or trauma to an artery or vein in the brain. This condition can result in intense headaches, loss of consciousness, and, in severe cases, neurological deficits.
Furthermore, subarachnoid anesthesia refers to a procedure where local anesthetic agents are injected into the subarachnoid space during a spinal block. This technique provides anesthesia or pain relief for specific regions of the body during surgeries or childbirth.
In summary, subarachnoid relates to the space between the arachnoid and pia mater, describing structures, medical conditions, or procedures associated with this particular region within the central nervous system.
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Beneath the arachnoid membrane.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SUBARACHNOID
- aubarachnoid
- zubarachnoid
- xubarachnoid
- dubarachnoid
- eubarachnoid
- wubarachnoid
- sybarachnoid
- shbarachnoid
- sjbarachnoid
- sibarachnoid
- s8barachnoid
- s7barachnoid
- suvarachnoid
- sunarachnoid
- suharachnoid
- sugarachnoid
- subzrachnoid
- subsrachnoid
- subwrachnoid
- subqrachnoid
- subarahnoid
- Subarchnoide
- Subaracknoid
Etymology of SUBARACHNOID
The word "subarachnoid" is formed by combining two parts: "sub-" and "arachnoid".
1. "Sub-" is a prefix that comes from Latin, meaning "under" or "below". It is commonly used in English to indicate a position lower or subordinate to something else.
2. "Arachnoid" originates from the Greek word "aráchnē" which means "spider". In anatomy, the arachnoid is one of the three membranes that cover the brain and spinal cord. It is named after its thin and web-like appearance, resembling a spider's web.
By combining these two components, "subarachnoid" refers to the space or region between the arachnoid membrane and the pia mater (another one of the brain's protective membranes), specifically in the context of the brain or spinal cord.
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