Term
| The meninges develop from what two primary layers? |
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Definition
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Term
| At what stage of gestation does a primitive single layer surround the nervous system? |
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Definition
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Term
| The primitive layer of the meninges separates into what layers? |
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Definition
| Ectomeninx and endomeninx |
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Term
| The ectomeninx forms what? |
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Definition
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Term
| The endomeninx forms what? |
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Definition
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Term
| At what stage of development does the meninges generally have an adult pattern? |
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Definition
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Term
| A developmental defect associated with the formation of the meninges often associated with spina bifida, most often in the lumbar area, is known as what? |
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Definition
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Term
| What is the cause of a congenital dermal sinus? |
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Definition
| Extoderm fails to completely dissociate from neuroectoderm |
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Term
| Adult meninges consists of what three layers from the skull inward? |
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Definition
| Dura mater (aka pachymeninx), arachnoid mater, pia mater (leptomeninges) |
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Term
| Where are all three meningeal layers continuous? |
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Definition
| Between brain and spinal cord |
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Term
| The ectomeninx around the brain stays attached to what? |
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Definition
| Periosteal connective tissue |
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Term
| The ectomeninx consists of what two layers? |
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Definition
| Periosteal dura (outer) and meningeal dura (inner) |
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Term
| What is formed when the ectomeninx separates from the vertebral periosteum during development? |
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Definition
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Term
| The epidural space is a space between the vertebral periosteum and what? |
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Definition
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Term
| What attaches the dura to the arachnoid? |
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Definition
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Term
| What separates the arachnoid mater from the pia? |
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Definition
| Subarachnoid space (except between the brain and spinal cord) |
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Term
| The thin connective tissue stands that connect the arachnoid matter with the pia are known as what? |
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Definition
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Term
| What are the two primary layers of the dura mater? |
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Definition
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Term
| What is the secondary layer of the dura mater? |
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Definition
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Term
| The periosteal and meningeal layers of the dura mater is composed of large amounts of what substance? |
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Definition
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Term
| Areas in which the meningeal portion of the dura fold inward to separate the cranial cavity into compartments are known as what? |
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Definition
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Term
| The primary dural septa that lies in the longitudinal fissure is known as what? |
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Definition
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Term
| The falx cerebi attaches anteriorly to what? |
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Definition
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Term
| The falx cerebri attaches posteriorly to what? |
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Definition
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Term
| The tentorium cerebelli lies where? |
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Definition
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Term
| The tentorium cerebelli connects anteriorly to what? |
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Definition
| Anterior clinoid processes |
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Term
| What forms the roof of the hyophyseal fossa encircling the infundibulum? |
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Definition
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Term
| What are the compartments formed by the dural septi? |
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Definition
| Lateral supratentorial compartments, infratentorial compartment |
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Term
| The falx cerebri separates what compartments? |
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Definition
| Lateral supratentorial compartments |
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Term
| The tentorium cerebelli borders what compartment? |
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Definition
| Infratentorial compartment |
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Term
| Separation of the meningeal and periosteal dura at junctions within the skull and the joining of two layers of meningeal dura at the free edges of dura septa form what? |
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Definition
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Term
| Where does the blood supply of the cranial dura originate? |
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Definition
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Term
| Blood vessels that supply the cranial dura run between the periosteal dura and what? |
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Definition
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Term
| A subdural hematoma occurs between what? |
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Definition
| Meningal dura and arachnoid mater |
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Term
| The trigeminal nerve innervate what parts of the dura? |
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Definition
| Anterior and middle cranial fossa |
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Term
| The dura of the posterior fossa is innervated by what? |
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Definition
| C2-3 (C1 if present), some vagus |
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Term
| The tentorium is supplied by the tentorial nerve which is a branch of what? |
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Definition
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Term
| A irritation or infection of the dura above the tentorium will refer pain to the face through what nerve? |
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Definition
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Term
| Pain referred to the back of the head via cranial nerves is caused by irritation of what? |
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Definition
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Term
| There is some evidence that may imply a link between muscle tension headaches causing what? |
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Definition
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Term
| The dural border cell layer lacks a dense connective tissue matrix, forming a plane of weakness that is succeptible to what? |
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Definition
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Term
| What are the two primary parts of the arachnoid mater? |
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Definition
| Arachnoid barrier and arachnoid trabecule |
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Term
| The layer of cells containing tight junctions that from a barrier to the diffusion of cerebral spinal fluid from the subarachnoid space is called what? |
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Definition
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Term
| What suspends the brain in the subarachnoid space? |
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Definition
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