Why is the epidural space filled with fat tissue?
The epidural space contains fat, veins, arteries, spinal nerve roots and lymphatics. The fat in the epidural space helps absorb shock, which protects the other contents in the area, as well as the dura. The dura is the outermost layer of the covering, called the meninges, that surrounds the spinal cord.
Is the epidural space filled with fat?
Conclusions: The epidural space contains abundant epidural fat that distributes along the spinal canal in a predictable pattern. Fat cells are also abundant in the dura that forms the sleeves around spinal nerve roots but they are not embedded within the laminas that form the dura mater of the dural sac.
What surrounds the epidural space?
The epidural space (Fig. 51-2) is bordered by the posterior longitudinal ligament and vertebral lamina, with adjoining ligamentum flavum. The spinal epidural space runs from the level of the foramen magnum to the sacral hiatus, where it is bound by the sacrococcygeal ligament.
What is an epidural fat pad?
Epidural lipomatosis is a rare disorder in which an abnormal amount of fat is deposited on or outside the lining of the spine. It may press on the spinal cord and nerves.
Where is epidural fat?
Epidural fat surrounds dura mater, which engulfs arachnoid mater followed by subarachnoid space, pia mater, and spinal cord. Although not usually found in the cervical region, epidural fat is commonly found along thoracic and lumbo-sacral regions.
What occupies the epidural space around the spinal cord quizlet?
The sheath around the spinal cord is not attached directly to the vertebrae but is separated by an epidural space which lies between the dural sheath and the bony walls. This space contains blood vessels, loose connective tissues, and adipose tissue that pad the spinal cord.
What is the pia mater made of?
7.1. The pia mater of the spinal cord is comprised of collagen and reticular fibers. The reticular tissue is wrapped closely around the spinal cord and passes posteriorly into the anterior median fissure. The collagen fibers are external to the reticular fibers forming bundles.
What is ligamentum flavum thickening?
Ligamentum flavum hypertrophy is a condition in which the ligamentum flavum (LF) thickens due to stresses placed on the spine. With hypertrophy, ligamentum flavum (LF) increases in thickness (size). The thicker it becomes, the higher the risks of compressing the spinal cord or spinal nerves.
How do you get epidural fat?
Exogenous steroid use is the most common cause of epidural lipomatosis (non-neoplastic overgrowth of adipose tissue within the epidural space of spinal canal) and accounts for about 55% of cases.  The less common causes are obesity (25%), Cushing’s syndrome (3%) and idiopathic (17%).
What is found in the epidural space in the vertebral column quizlet?
The epidural space contains spinal nerve roots, blood vessels, areolar connective tissue, and adipose tissue.
Where is the epidural space 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.
What is the arachnoid mater made of?
The arachnoid is composed of collagen and elastic fibers. It has a variable thickness, in places being formed by several cell layers. Its outer (dural) aspect is smoother than the inner (pial) aspect from which trabeculae emerge to bridge the subarachnoid space (Nicholas and Weller, 1988).
What is dura mater made of?
The dura mater is composed of two layers: the periosteal/endosteal layer and the meningeal layer. The dural venous sinuses are between these two layers. The dura folds to form septa that create the falx cerebri, tentorium cerebelli, falx cerebelli, and diaphragma sellae.
What is the ligamentum flava?
• The ligamentum flavum, or the yellow ligament, is a thick, segmental ligament that runs between the lamina of adjacent vertebrae (Fig. 1-11). It begins on the undersurface of the inferior border of the lamina and courses down to the leading superior edge of the lamina (Fig.
What type of tissue is the meninges?
The meninges are the connective tissue coverings of the brain and spinal cord. The outermost layer is the dura mater, a dense and tough tissue that is reduplicated to form the periosteum of the inner skull. Beneath the dura is the arachnoid, a network of loose connective tissue that lacks blood vessels.
What fills the subdural space?
The classic view has been that a so-called subdural space is located between the arachnoid and dura and that subdural hematomas or hygromas are the result of blood or cerebrospinal fluid accumulating in this (preexisting) space.
What substance fills the subarachnoid space?
The subarachnoid space consists of the cerebrospinal fluid (CSF), major blood vessels, and cisterns. The cisterns are enlarged pockets of CSF created due to the separation of the arachnoid mater from the pia mater based on the anatomy of the brain and spinal cord surface.
What kind of tissue is the dura?
Dura mater is a thick membrane made of dense irregular connective tissue that surrounds the brain and spinal cord. It is the outermost of the three layers of membrane called the meninges that protect the central nervous system.
What kind of tissue makes up the arachnoid mater?
elastic connective tissue
The arachnoid mater is the middle layer. It is a thin, web-like membrane that covers the entire brain. The name comes from the spider-web like trabeculae between it and the pia mater. It is made of elastic connective tissue.
What is found in the epidural space?
What is the epidural space filled with?
The spinal cord is covered by small layers of linings that encircle it. The space between the two outer layers is called epidural space that is filled with fat and blood vessels.
What is the function of the epidural space?
The epidural space may be used to introduce certain medications for pain management purposes. This part of the spinal anatomy consists of the area between the dura mater, the tough fibrous tissue that surrounds the spinal cord and cerebrospinal fluid, and the lining of the vertebral canal. In different people, the size of the epidural space can vary.
What occupies the epidural space in the spinal column?
From superficial to deep,the meninges occur in the order_______.