The epidural space is the area between the dura mater (a membrane) and the vertebral wall, containing fat and small blood vessels. The space is located just outside the dural sac which surrounds the nerve roots and is filled with cerebrospinal fluid.
Where is the epidural space located quizlet?
The epidural space is located between the bony wall of the vertebral canal and the outer surface of the dura mater . It is filled with fat and blood vessels. The dura mater, the outermost meninx, is dense connective tissue forming a tube enclosing the spinal cord.
Where does epidural space start and end?
The epidural space extends from the base of the skull to the end of dural sac at S2 . It is a cylindrical structure enveloping the dura. The epidural space exists between the dura and ligamentum flavum. The actual size of epidural space varies greatly.
Is the epidural space found in the spinal cord area?
The epidural space is an area of spinal anatomy that is located between the vertebral canal and the spinal cord . It lies inside the canal, but outside the cord.
Is the epidural space part of the CNS?
| Epidural space | The medulla spinalis and its membranes | Details | Identifiers | Latin Spatium epidurale, spatium extradurale, cavum epidurale |
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What fills the epidural space?
The epidural space is the area between the dura mater (a membrane) and the vertebral wall, containing fat and small blood vessels. The space is located just outside the dural sac which surrounds the nerve roots and is filled with cerebrospinal fluid .
What is found in the epidural space around the spinal cord quizlet?
What are the contents of the epidural space? Nerve roots, lymphatics, blood vessels .
Why is anesthesia injected in epidural space?
The epidural space is the outermost part of the spinal canal. Steroids, anesthetics and anti-inflammatory medications are typically delivered in an epidural injection. The injection may reduce pain and swelling in and around the spinal nerve roots , as well as around damaged nerves which in time may heal.
Why is the epidural space not located in the cranial cavity?
Spinal dura mater is separated from periosteum lining the vertebral canal by an epidural space that contains a variable amount of fat (in the cranial cavity, dura mater and periosteum merge so an epidural space does not exist).
Why is it called epidural?
Epidural administration (from Ancient Greek ἐπί, “on, upon” + dura mater) is a method of medication administration in which a medicine is injected into the epidural space around the spinal cord .
Is a spinal the same as an epidural?
Epidurals involve the injection into the space outside the sac (epidural space). Spinals and epidurals have the same effect – they both numb a large region of the body – but because the spinal injection is more direct, the effect is immediate.
What is the difference between the epidural space and the subarachnoid space?
The epidural space, bordered medially by dura, contains fat and vascular structures. The subdural space is a virtual space in between the dura and arachnoid membrane. The subarachnoid space is home to the CSF, spinal cord and nerve rootlets.
What is an epidural when giving birth?
An epidural block is a numbing medicine given by injection (shot) in the back. It numbs or causes a loss of feeling in the lower half of your body. This lessens the pain of contractions during childbirth. An epidural block may also be used to reduce pain during surgery on the lower extremities.
What level does epidural space end?
The dural sac generally ends at the lower border of S2 below which it continues as the filum terminale, a structure clearly and frequently seen with spinal endoscopy. The dural sac contains the anterior and posterior spinal nerve roots, collectively know as the cauda equina.
What nerves run through the epidural space?
Cephalad, the epidural space connects with the venous sinuses of the skull, namely the basilar, occipital, and sigmoid sinuses. Caudad, the vertebral venous plexuses are connected to the sacral venous plexus , creating a link to the uterine and iliac veins.
How does the operator know that the epidural space has been reached?
Thus far, spectroscopy has been the most accurate and learnable method for identifying the epidural space.
