Feat. of the spinal chord Flashcards
Intervertebral or radicular foramen
Check Fasciculus gracilis and cuneatus
Where does the spinal cord extend from?
Medulla oblongata
At foramen magnum
The termination of the spinal cord is called
Conus medullaris
At what level of the vertebral column does the spinal cord terminate in adults?
Between L1 and L2 that is;
The lower border of the 1st lumbar bone and the upper border of the second lumbar bone
At which level of the vertebral column does the spinal cord terminate at birth?
At the lower border of L3
At which level of the vertebral column does the dural tube end?
S2
The two fibrous structures the pia mater forms
Filum terminale
Denticulate ligamentum
Function of the Denticulate ligament
It anchors the spinal cord laterally to the bone
At what level of the vertebral column does the subarachnoid also end?
S2
How many pairs of denticulate ligaments are there?
21 pairs
What protects the spinal cord?
The meninges
The bones of the vertebral column does
The point at which the spinal nerve roots exit the spinal cord is known as the
Intervertebral foramen or radicular foramen
The epidural space is also known as
Extra dural space
What does the epidural space contain?
Fatty tissue
Venous plexus
How is the epidural space important clinically?
It is the site for epidural anaethesia
What does the subarachnoid space contain?
Cerebrospinal fluid
Nerve roots
Spinal arteries
How is the subarachnoid space important clinically?
Cerebrospinal fluid is usual tapped from there
The supports of the spinal cord
Denticulate ligaments
Filum terminale
Spinal nerve roots
Which parts or segments of the spinal cord are enlarged?
Cervical and the Lumbosacral regions
What is responsible for the two enlarged segments of the spinal cord?
Large population of neurons in these segments for the innervation of the limbs; both upper and lower
A segment of the spinal cord is described as?
A portion of the spinal cord where a pair of spinal nerves are attached
