Notes in 4- Spinal Cord

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Published	02/10/2024	The {{c1::spinal cord}} is:→ Part of CNS→ Major reflex center and conduction pathway between body and brain→ Begins at medulla oblongata and ends at L…
Published	02/10/2024	Spinal cord and vertebral canal length is almost equal in {{c1::fetus}} (12wk)• Vertebral canal grows and spinal cord ends at {{c2::L1-L2 vertebral le…
Published	02/10/2024	Features of Spinal Cord:• {{c1::Conus medullaris}}: conical inferior end of the spinal cord• {{c1::Cauda equina}}: bundle of spinal nerve roots in Lum…
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Published	02/10/2024	Spinal Cord Histology:
Published	02/10/2024	Spinal Nerves:{{c1::31}} pairs of spinal nerves arise from the spinal cord in a paired segmental fashion • Spinal nerves exit the vertebral canal…
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Published	02/10/2024	Meninges of Spinal Cord:[1] {{c1::Dura}} mater - tough fibrous, outermost membrane[2] {{c1::Arachnoid}} mater - delicate avascular membrane[3] {{c1::P…
Published	02/10/2024	{{c1::Dural sac}} is a membranous sheath or tube of dura mater that surrounds the spinal cord and the cauda equina.It terminates at S2 vertebral level…
Published	02/10/2024	Sympathetic outflow from spinal cord:→ {{c1::Thoracolumbar}} outflow → {{c2::T1-L2}} segment→ cell bodies are located at the lateral horn of…
Published	02/10/2024	Clinical Anatomy:{{c1::Ischemia}} & muscle weakness and paralysis→ Deficiency of blood supply to spinal cord
Published	02/10/2024	Clinical Anatomy:{{c1::Venous drainage}}→ Into the Internal vertebral venous plexuses → ends up in cerebral dural venous sinuses in skull• T…
Published	02/10/2024	Clinical Anatomy:{{c1::Injury}}→ blunt trauma and penetrating injuries.• cord compression from disc prolapse  • bone metastas…
Published	02/10/2024	Clinical Anatomy:{{c1::Lumbar Puncture}}Done at L3-L4 or L4-L5(where the spinal cord ends to avoid injury)CSF collection → Subarachnoid spaceEpid…
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