Vasculature Of The Spinal Cord And Lamina Properties Flashcards
How many longitudinal arteries travel up and down directly on the spinal cord?
3
1 anterior spinal artery and 2 posterior spinal arteries
Which arteries run deep next to the spinal nerve root?
Radicular arteries
Posterior radicular artery and anterior radicular artery
Where does the anterior spinal artery run?
Anterior median fissure of the spinal cord
Where do the two posterior spinal arteries run?
Posterolateral sulci of the spinal cord
Which arteries run over the top of the radicular arteries and anastomoses with the anterior and posterior spinal arteries.
Medullary arteries
Which arteries anastomoses with the anterior spinal artery?
Anterior segmental medullary artery
Which arteries anastomoses with the posterior spinal arteries?
Posterior segmental medullary artery
What is the significance of the IVVP (internal vertebral venous plexus)?
Metastasis of cancer travels there
There are usually how many logidudinal VEINS running along the spinal cord directly?
6
3 anterior and 3 posterior spinal veins
Venous plexus that is a network of valveless veins in the human body that connect the deep pelvic veins and thoracic veins to the internal vertebral venous plexuses. The pressure is very low and is a common location of cancer metastasis.
Baston’s venous plexus
What does IVVP stand for?
Internal vertebral venous plexus
Do venous plexuses have valves?
No
Which ligament is located between the lamina and tends to calcify as adults become old?
Ligamentum flavum
Which lamina holds Clarke’s nucleus primarily?
Rexed lamina VII
Which Rexed Lamina is also known as the Substantial Gelatinosa?
Rexed Lamina II
