between the vertebrae and what layer of meninges is the epidural space?
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Spinal epidural space In the spinal canal, the periosteal layer adheres to the inner surface of the spinal canal which is formed by the bodies of vertebrae. The meningeal layer lays over the spinal arachnoid mater. Between the two layers is the spinal epidural space.
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The main difference between cranial and spinal meninges is that cranial meninges are the protective coverings of the brain, consisting of channels in the dura mater between various parts of the brain called dural folds, whereas spinal meninges are the protective coverings of the spinal cord whose dura mater acts as a ...
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The spinal cord consists of nerves that carry incoming and outgoing messages between the brain and the rest of the body. It is also the center for reflexes, such as the knee jerk reflex (see Figure: Reflex Arc: A No-Brainer). Like the brain, the spinal cord is covered by three layers of tissue (meninges).
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Arachnoid cysts are cerebrospinal fluid-filled sacs that are located between the brain or spinal cord and the arachnoid membrane, one of the three membranes that cover the brain and spinal cord.
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dorsal cavity: The cavity in the back of the body that contains the cranial and vertebral cavities, which house the brain and spinal cord respectively.
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Cervical laminectomy Laminectomy is surgery that creates space by removing the lamina — the back part of a vertebra that covers your spinal canal. Also known as decompression surgery, laminectomy enlarges your spinal canal to relieve pressure on the spinal cord or nerves.
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There are different techniques for giving epidural injections for lower back and leg pain: interlaminar -– this is given between two of your vertebrae (back bones) transforaminal – this is an injection into the side of your spine. caudal – this is given through an opening at the base of your spine.
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Spinal anesthesia involves the injection of numbing medicine directly into the fluid sac. Epidurals involve the injection into the space outside the sac (epidural space).
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The brain and spinal cord are covered by three layers of meninges, or protective coverings: the dura mater, the arachnoid mater, and the pia mater.
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The dorsal root is the afferent sensory root and carries sensory information to the brain. The ventral root is the efferent motor root and carries motor information from the brain. The spinal nerve emerges from the spinal column through an opening (intervertebral foramen) between adjacent vertebrae.
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The two fundamental anatomical divisions of the nervous system are the Central Nervous System (brain and spinal cord) and the Peripheral Nervous System, which consists of all nerves outside the brain and spinal cord.
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Dura mater that surrounds the brain consists of two layers. The outer layer is called the periosteal layer and the inner layer is the meningeal layer. The outer periosteal layer firmly connects the dura mater to the skull and covers the meningeal layer. The meningeal layer is considered the actual dura mater.
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Function. The meninges functions primarily to protect and support the central nervous system (CNS). It connects the brain and spinal cord to the skull and spinal canal. The meninges forms a protective barrier that safeguards the sensitive organs of the CNS against trauma.
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There are 3 layers of tissue called meninges that help protect the brain. The outer covering of tissue (called the dura mater), closely lines the inside of the skull. The second layer is the arachnoid mater, and the third layer, the pia mater, hugs the surface of the brain.
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The pyramidal decussation marks the border between the spinal cord and the medulla oblongata.
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the two anatomical divisions of the nervous system are the central nervous system(CNS), consisting of the brain and spinal cord, and the peripheral nervous system(PNS), consisting of all neural tissue outside the CNS.
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The sulci, fissures, basal cisterns and ventricles together form the 'CSF spaces', also known as the 'extra-axial spaces'. CSF is of lower density than the grey or white matter of the brain, and therefore appears darker on CT images.