Conus medullaris the tip of the spinal cord forms a conical portion. Filum terminale Non-nervous fibrous tissue arising from the conus medullaris and extends inferior to attatch the coccyx. Cauda equina The lumbosacral roots descend for varying distances within the verterbral canal before reaching their corresponding intervertebral foramina.They form a divergent sheaf of spinal roots surrounding the filum terminale
Conus medullaris the tip of the spinal cord forms a conical portion. Cauda equina The lumbosacral roots descend for varying distances within the verterbral canal before reaching their corresponding intervertebral foramina. They form a divergent sheaf of spinal roots surrounding the filum terminale. Filum terminale Non-nervous fibrous tissue arising from the conus medullaris and extends inferior to attatch the coccyx
Three fibrous membranes that encloses the cord Pia mater Dura mater-tough outer Subarachnoid space Subdural space covering .Epidural space-between Arachnoid mater Dura mater vetebrae and dura mater contains blood vessels and adipose tissue(epidural hematoma) Arachnoid mater .Subarachoid space-A space between the pia matter and arachnoid,contains CSF Cut vertebra ADAM. Pia mater-translucent membrane-cover the spinal cord tightly
Three fibrous membranes that encloses the cord Dura mater- tough outer covering •Epidural space- between vetebrae and dura mater contains blood vessels and adipose tissue (epidural hematoma) Arachnoid mater •Subarachoid space- A space between the pia matter and arachnoid, contains CSF Pia mater- translucent membrane-cover the spinal cord tightly
1. Pia mater Denticulate ligament Motor root of 7th thoracic nerve 4. Sensory root of 7th thoracic nerve 5· Subarachnoid space 6. Subdural space Superior articular process of 9th thoracic vertebra 8.Epidural fat with internal vertebral venous plexus 9 Ligamentum flavum 10.10th thoracic vertebra
The terminal cisterna Clinical note: -0 Lumboeacral Conus medullaris >Take cerebrospinal fluid for (of spinal cord 0 0 examination ® 0 0 ⑧ >2.Lumbar anesthesia 0 @ Pial part Inferice part of arachnoid mater Filum terminale End of subarachnoid Dural part sD3c色S1
The terminal cisterna Clinical note: Take cerebrospinal fluid for examination 2. Lumbar anesthesia
Lumbar puncture: Clinically,cerebrospinal fluid is taken from the subarachnoid space between L3-L4 or L4-L5. This avoids any damage to the spinal cord. 國 脊醑圆锥 硬脊 翻 终 第1腰椎 first lumbar vertebra
Clinically, cerebrospinal fluid is taken from the subarachnoid space between L3-L4 or L4-L5 . This avoids any damage to the spinal cord. Lumbar puncture: