Anatomy: spinal cord - blood supply Flashcards
ARTERIES
What are the longitudinally oriented vessels?
ARTERIES
What arteries gives rise to the anterior and posterior spinal arteries?
ARTERIES
Transversely oriented arteries
ARTERIES
What is the difference between segmental medullary arteries, versus radicular arteries?
Segmental medullary arteries both supply roots and reinforce the longitudinal arteries
Radicular arteries supply the roots only; they do not reinforce the longitudinal arteries
VEINS
Label the following:
VEINS
Label the following:
- Which two veins drain into the intervertebral veins?
- Where do intervertebral veins exit?
The spinal veins (anterior/posterior medial/lateral)
The internal venous plexus
The intervertebral foramen
VEINS
The intervertebral veins drain segmentally.
Where do these veins drain into in the:
- Cervical region
- Thoracic region
- Lumbar region
Where do these ultimately all drain to?
Vertebral veins
Azygous vein
Lumbar vein
The caval venous system
VEINS
Are the spinal veins valveless?
Implications for cancer spread?
Yes
Pelvic organ cancers can metastasize into the vertebra and CNS