Spine Flashcards
What is the starting point of the spinal cord?
continuation of medulla as it leaves foramen magnum
What is the cord like structure that attaches pia of the spine to the arachnoid and dura mater?
denticulate ligaments
What are the two points where the spinal cord is enlarged and why ?
due to limb innervation => cervical (C5-T1 ) and Lumbosacral (L1-S3)
Where does the spinal cord ends?
L1/2 OR L 3 in neonates
What is the distal end of the spinal cord known as?
Conus Medullaris
What is the continuation of pia matter extending from end of vertebral column known as?
Filum terminale
what is the bundle of spinal nerves past L1/2 called?
Cauda equine
What regions is lateral cord present in?
S2-5 and T1-L2
How do the nerves leave the spinal cord
Through intervertebral foramen
Define lumbar cistern
Enlargement of the subarachnoid space between the conus medullaris of spinal cord (about vertebral level L2) and inferior end of subarachnoid space and dura mater (about vertebral level S2);
What is the best location for Lumbar puncture?
L3-4 adult and L4-5 in a neonate
Define sulcus and gyrus
sulcus=> depression; gyrus=> elevation
