Spinal Chord

Question 1

Erector Spine Muscles 3

Answer 1

Illocostalis thoracis(high)/lumborum (low)-most distil

Longassicis thoracis-2nd most medial

Spinalis-most medial

Question 2

Vertebral canal

Answer 2

Under lamina

Question 3

Ligamentum flava

Answer 3

Under laminae

-extends between and covers dura mater/sac

Question 4

Dura mater and dura sac functions

Answer 4

Dura mater covers the dura sac

Question 5

Epidural space

Answer 5

Space between dura mater and bony vertebral arch

Question 6

Spinal gangia

Answer 6

coming out laterally of dura mater

fat part

Question 7

Arachnoid

Answer 7

Under the dura mater

Usually fluid filled and pushed up against dura mater-collapsed in disection

Covers the surface of the spinal chord

Question 8

Conus medullaris

Answer 8

tapering inferior end of spinal chord

Question 9

cauda equina

Answer 9

composed of both dorsal and ventral roots

roughly around after l5

Question 10

Dorsal and ventral roots

Answer 10

coming off the dural sac

Question 11

denticulate ligament

Answer 11

separates dorsal and ventral roots as they leave dural sac

Question 12

Spinal nerve

Answer 12

under arachnoid

Question 13

dorsal root ganglion

Answer 13

i think this is same as spinal gangion

Question 14

Ventral ramus and dorsal ramus

what do these come from

Answer 14

ventral is the large branch and smaller branch is the dorsal ramii

dorsal root ganglia divides into these