intervertebral foramen: contents

Question 1

what are the generic contents of the intervertebral foramen?

Answer 1

neural tissue, connective tissue, vascular tissue, lymphatic tissue

Question 2

what is the percent of neural tissue in the intervertebral foramen?

Answer 2

from 8 to 50 %

Question 3

what are the medullary feeder arteries?

Answer 3

enlarged radicular arteries which join the arterial vasa corona to provide blood from the spinal cord

Question 4

what is the name of the largest medullary feeder artery?

Answer 4

artery of Adamkiewicz or the arteria radicalis magna anterior

Question 5

what are the characteristics of the Artery of Adamkiewicz?

Answer 5

it is a left side, anterior medullary feeder artery, located in the T9/T10 intervertebral foramen, and the primary vascular supply to the lumbar enlargement

Question 6

what veins drain the nerve roots toward the intervertebral foramen?

Answer 6

anterior and posterior radicular veins

Question 7

what ligament lies next to the anterior internal vertebral venous plexus?

Answer 7

posterior longitudinal ligament

Question 8

what is a unique histological feature of the veins of the vertebral column?

Answer 8

they appear to lack valves

Question 9

what size lymphatic vessels lie in the intervertebral foramen?

Answer 9

medium sized lymphatics

Question 10

what type(s) of connective tissue will be present in the intervertebral foramen?

Answer 10

adipose tissue and loose areolar connective tissue