Structures Surrounding The Spinal Cord/Defomities

Question 1

What are the structures surrounding the spinal cord from superficial to deep?

Answer 1

• epidural space
• dura mater
• arachnoid mater
• Subarachnoid Space (CSF)
• Pia Mater

Question 2

How does Spina Bifida Occulta occur?

Answer 2

• Happens when there is an unfused vertebral arch

- No herniation

Question 3

How does a meningocele form?

Answer 3

-it occurs when the dura and arachnoid mater herniate through defect in the vertebral arch

Question 4

What is a meningomyelocele?

Answer 4

-Meninges and spinal cord herniate through defect in vertebral arch

Question 5

What forms a myeloschisis?

Answer 5

• When neurulation fails to occur at caudal end of neural crest.
• The caudal end of the spinal cord fails to form properly

Question 6

What forms an anencephaly?

Answer 6

When neurulation fails to occur at cranial end of neural crest. Brain fails to form properly.