Upgrade to remove ads
Spinal Cord Final Notes
Terms in this set (15)
Information goes up & down the spinal cord. TRUE or FALSE
_________- is a bundle of axons in the CNS which are composed of a bunch of white matter.
Decending Motor Tract
The spinal cord is composed of Grey Matter on the inside and White Matter on the Outside. The opposite of the Brain. TRUE or FALSE
Where does the spinal Cord start at?
Below the Foramen Magnum
Where does the spinal Cord end at?
L1-L2 Vertebral Bodies
About how long is the spinal cord?
_________- is the end of the spinal cord about L1-L2.
__________- is a tiny ligament that connects the conus.
________- are ligaments that anchor the cord in a side of side projection in the vertebral Bodies.
Does the spinal cord stay the same width throughout?
No, b/c different parts of the body
Cervical Enlargement area with ______ extremities.
Lumbar Enlargement are with ______ extremities.
What is the whole between the vertabrae called? Interverterbal Foramen
What is the hanging down of the lumbar nerves within the verterbal canal called (looks like a horses tall)? Cauda Equina
What plexus does the sciatic nerve branch off?
Rami means branches.
Spinal nerves are connected to the spinal cord by spinal roots.
Is there a thoracic plexis? No, why?
Dorsal Ramus- Do not form plexus
Ventral Ramus- they form plexus except for in the Thoracic
Ventral Ramus of the Thoracic form the intercostal nerves. But there are no nerve plexus.
Communicating rami is also known as rami communicantes- relates to the autonomic nervous system.
Dorsal Root Ganglion (DRG)- is filled with cell bodies of sensory neurons.
The most abundant neuron found in the CNS are Interneurons.
Endoneurium- wrapping around individual nerve cells.
Perineurium- wraps around bundles of nerve cells.
There are ventral and dorsal roots attaching to the spinal cords.
What type of information would be going out of the ventral root? Motor Information (Efferent)
What type of information would be going out of the dorsal root? Afferent
What is the anterior deep groove? Anterior Median Fissure
What is the small groove in the back? Posterior Median Sulcus
YOU MIGHT ALSO LIKE...
Cross Section of Spine
Bio Notes 10/6
white matter of the spinal cord
OTHER SETS BY THIS CREATOR
Hypoglycemia for neonates
ATI Dressing Change, Irragation, Acute Injury