Epidural Space Anatomy

Epidural space subarachnoid space and subdural space anatomy in this image you will find epidural space subdural space subarachnoid space pia mater arachnoid dura mater spinal meninges bone of the vertebra dorsal root ganglion the body of the vertebra in it. The epidural space contains fat epidural veins spinal nerve roots and connective tissue figure 6b the subdural space is a potential space between the dura and the arachnoid and contains a serous fluid.

Spinal Epidural Caudal Blocks Morgan Mikhail S

It is typically 4 6 mm in depth 4.

Epidural space anatomy. The epidural space is the area between the outermost layer of tissue and the inside surface of bone in which the spinal cord is contained ie the inside surface of the spinal canal. These veins are predominantly in the antero lateral part of the epidural space. It is the space within the canal formed by the surrounding vertebrae lying outside the dura mater which encloses the arachnoid mater subarachnoid space the cerebrospinal fluid and the spinal cord.

The other two spaces are in the spinal cord itself. Blood vessels these veins communicate with the segmental veins of the neck the intercostal azygos and lumbar veins. With the veins of bones of the vertebral column the internal and external vertebral plexuses form batsons plexus.

In humans the epidural space contains lymphatics spinal nerve roots loose connective tissue fatty tissue small arteries. The subdural compartment is formed by flat neuroepithelial cells that have long interlacing branches. Anatomy of epidural space.

The boundaries of the epidural space are summarized in table 1 and the definitions of the cervical thoracic lumbar and sacral regions are defined in table 2. The epidural space runs the length of the spine. The epidural space contains fat the dural sac spinal nerves blood vessels and connective tissue.

The spinal epidural space is located in the spinal canal between the spinal dura mater and the vertebral column and extends from the foramen magnum to the sacral canal at the level of s23 3.

Epidural Delivery Of Pain Medication Mayo Clinic