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What does encroachment of the ventral subarachnoid space in the L4-L5 level mean?
- Encroachment: Taking up space to which it's not entitled.
- ventral: belly side
- subarachnoid space: the area just under the membranes surrounding the spine
- L4-L5: the space between the fourth and fifth lumbar vertebrae.
So, to sum up, something (probably a herniated disk?) is taking up space on the belly side of the spinal cord between L4 and L5. It's not pressing the cord, but it is crowding the space between the spinal cord and the surrounding membrane.
What else can I help you with?
What is effacement of the ventral subarachnoid space?
This refers to a herniated nucleus polyposis being the suspected reason for back in the lower back. The space that is supposed to only have cerebrospinal fluid has something else occupying it.
What is ventral sub arachnoid space?
The ventral subarachnoid space is a region within the spinal cord where cerebrospinal fluid circulates. It is located between the arachnoid mater and pia mater layers surrounding the spinal cord. This space helps cushion and protect the spinal cord.
Which procedure uses contrast dye injected into the subarachnoid space at the level of the L3 and L4 vertebrae?
myelography
What is the subarachnoid space?
The subarachnoid space is a space filled with cerebrospinal fluid located between the arachnoid mater and pia mater membranes that surround the brain and spinal cord. It serves as a protective cushion and helps with the circulation of cerebrospinal fluid.
Where does cerebrospinal fluid flows?
subarachnoid space
Cerebrospinal fluid occupies the spaces within the meninges?
The Subarachnoid Space between the Arachnoid and Pia layers of the CNS (Central Nervous System)
A subarachnoid space lies directly between the?
pia and the arachnoid
Is cytoplasm located in the subarachnoid space?
no cerebrospinal fluid are 215
What is the space between the middle layer of the meninges and the deepest layer of the meninges called?
subarachnoid space
Where is subarachnoid space located?
Between the Arachnoid mater and the Pia mater
What two layers does the subarachnoid space lay between?
arachnoid and dura
Where is cerebrospinal fluid extracted from?
Cerebrospinal fluid is extracted from the subarachnoid space in the brain and spinal cord through a procedure called a lumbar puncture, also known as a spinal tap.
