5.4 Meninges, blood vessels & cerebrospinal fluid
5.4 Meninges, blood vessels & cerebrospinal fluid
Section1Meningesof Spinal Cordand BrainSection2 Blood Vessels of Spianl Cord and BrainSection3CerebrospinalFluid
Section 1 Meninges of Spinal Cord and Brain Section 3 Cerebrospinal Fluid Section 2 Blood Vessels of Spianl Cord and Brain
Section1MeningesofSpinalcordandBrainDuramaterexternal layer,toughanddensefibroustissueArachnoida thin intermediate layer,lackofthebloodvessels&nervesPia materathinandtranslucentinternal layer,richesinbloodvessles
Dura mater external layer, tough and dense fibrous tissue Arachnoid a thin intermediate layer, lack of the blood vessels & nerves Pia mater a thin and translucent internal layer, riches in blood vessles Section 1 Meninges of Spinal cord and Brain
Meningesofthespinal cord1.Spinal duramater? Superiorly: continuous with cerebral dura mater at foramen magnum.Inferiorly: it become thinner at the level of the 2nd sacral vertebra andenwrap thefilumterminale and ended in the coccyx·Laterally:formstheexternalmemberanesofthespinalnerves②Spinalcord1S2Coccyx
1. Spinal dura mater • Superiorly: continuous with cerebral dura mater at foramen magnum • Inferiorly: it become thinner at the level of the 2nd sacral vertebra and enwrap the filum terminale ① and ended in the coccyx • Laterally: forms the external memberanes of the spinal nerves ② I. Meninges of the spinal cord ① ② S2 Coccyx Spinal cord
2.Arachnoid·Adelicate,transparent,avascularmembrane·continuous with cerebral arachnoid at foramen magnum·Subarachnoid space:betweenarachnoid&pia materArachnoidDuramater
• A delicate, transparent, avascular membrane • continuous with cerebral arachnoid at foramen magnum • Subarachnoid space：between arachnoid & pia mater 2. Arachnoid Arachnoid Dura mater