Spinal Cord Anatomy

University:
Virginia Maryland College of Veterinary Medicine
Course:
VM 8164 | The Normal Animal
Academic year:

2023
Views:

29

Pages:

3
Author:

Sarah Landeck

the cervica The spinal cord has a enlargements and the lumbo sacral neural The crest tube outside neural 3 membranes tube surround arachnoid outer the CNS and the neural becomes becomes the CNS and middle the PNS the dura pia mater mater inner Between roots of spinal nerves the pia extends through the arachnoid and anchors to the dura t this is called the denticulate ligaments the pia mater and arachnoid are separated by the subarachnoid space filled with Sf The epidural space above dura is filled with fat Denticulate mater Yagura Dura ligament spinal mater nerve Edt Epidural lumbar punctures take place between the 1st t 2nd coccygeal Each spinal cord nter vertebral segment araggq.ge corresp vernotorg nots to a disc spinal t there are 8 cervical T L S SC segments are pair nerves spinal cord segments named after of vertebrae 7C C spinal nerve exits from a lateral of an intervertebral foramen The cervical enlargement The lumbo sacral innervates Endemmedularis tapered contains spinal with the last 8 lo thoracic limb co Ct innervates enlargement hind limb Ty L end of the spinal cord spinal cord segments extend past Sc termination roots instea foramen foramina intervertebral to line up cauda equina cauda equina is made of con us medullar is spinal and filum nerves terminate pia mater In dogs SC segments are located in the vertebra that is one cranial to the segment's number C Tie The hole in the middle of the spinal cord is called the surrounded by grey matter central canal Grey matter has dorsal SAD DAVE ventral and ventral horns lateral affarent dorsal dorsal affaren efferent White matter Sensory sensory filled with CSF dorsal regions neurons motor neurons d dorsal root bring lateral brings info in 3 main SC arteries A Ventral funiculi to the CNS and information bring information ventral away ventral from the CNS takes it away longest artery in bed unpaired B Dorsolateral supply white matter there are Venous no lymph nodes in central drainage internal venous nervous plexus commu icate with inter arcuate branches tissue