Anatomy: spinal cord - blood supply Flashcards

1
Q

ARTERIES
What are the longitudinally oriented vessels?

A
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2
Q

ARTERIES
What arteries gives rise to the anterior and posterior spinal arteries?

A
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3
Q

ARTERIES
Transversely oriented arteries

A
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4
Q

ARTERIES
What is the difference between segmental medullary arteries, versus radicular arteries?

A

Segmental medullary arteries both supply roots and reinforce the longitudinal arteries

Radicular arteries supply the roots only; they do not reinforce the longitudinal arteries

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5
Q

VEINS
Label the following:

A
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6
Q

VEINS
Label the following:
- Which two veins drain into the intervertebral veins?
- Where do intervertebral veins exit?

A

The spinal veins (anterior/posterior medial/lateral)
The internal venous plexus

The intervertebral foramen

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7
Q

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?

A

Vertebral veins
Azygous vein
Lumbar vein

The caval venous system

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8
Q

VEINS
Are the spinal veins valveless?

Implications for cancer spread?

A

Yes

Pelvic organ cancers can metastasize into the vertebra and CNS

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