Structure of Spinal Cord

Question 1

Spinal Cord

Answer 1

The spinal cord is part of the central nervous system and consists of a tightly packed column of nerve tissue that extends downwards from the brainstem through the central column of the spine.

Question 2

Core of Spinal Cord

Answer 2

White Matter and Grey Matter

Question 3

Outside of Spinal Cord

Answer 3

3 layers of meninges; thick dura, fine arachnoid, and pia matter.

Question 4

White Matter in Spinal Cord

Answer 4

dorsal, lateral and ventral columns

Question 5

Grey Matter in Spinal Cord

Answer 5

dorsal and ventral horns

Question 6

Dorsal Horns

Answer 6

intermediary processing centre for this information

Question 7

Ventral Horns

Answer 7

contains the cell bodies of the lower motor neurones which have axons leaving via the ventral spinal roots on their way to innervate muscle fibres

Question 8

Development of the Spinal Cord

Answer 8

neural plate, neural fold, neural tube, spinal cord

Question 9

neural plate

Answer 9

embryonic ectodermal tissue thickens and flattens to become the neural plate

Question 10

Neural fold

Answer 10

ends of the neural plate, known as the neural folds, push the ends of the plate up and together, folding into the neural tube

Question 11

Neural Tube

Answer 11

Stage before spinal cord

Question 12

Sonic Hedgehog Protein

Answer 12

Helps produce ventral horn

Question 13

Bone morphogenetics

Answer 13

Helps produce dorsal horn