Final Intervertebral disc. Nucleus Pulposus

Question 1

what is the water concentration in the lumbar nucleus pulposus at birth and after 30

Answer 1

birth 85%

after 30 70%

Question 2

what is the consequence of non aggregated glysaminoglycans in the lumbar nucleus pulposus

Answer 2

the nucleus pulposus will loose water under deformation conditions

Question 3

what cell is associated with the the nucleus pulposus until about age 11

Answer 3

notochord cells

Question 4

what cells are associated with the mature nucleus pulposus

Answer 4

reticulocyte-fibroblast and chondroblast

Question 5

which type of collagen is dominant in the nucleus pulposus

Answer 5

collagen type II

Question 6

what is the organizational pattern for collagen fibers in the nucleus pulposus

Answer 6

they are irregularly oriented and randomly scattered

Question 7

what general tissue location is described as having an abundance of collagen type II fibers

Answer 7

cartilage

Question 8

what is the role of collagen type II fibers based on locations where it is dominant

Answer 8

it appears to be related to tissues having a deformation- reformation ability

Question 9

what is the cervical nucleus pulposus composed of

Answer 9

fibrocartilage