Spinal Cord cross section, 40x

HISTOLOGICAL FEATURES OF THE SPINAL CORD

©David B. Fankhauser, Ph.D.,
Professor of Biology and Chemistry
University of Cincinnati Clermont College,
Batavia OH 45103
Central Canal, 400x
Overview of spinal cord, 25x
This page has been accessed Counter times since 25 December 2002. 
21 January 1992, 3 Jan 1996, 31 Dec '96, 23 Jan. '97, 7 Jan '98, 5 Jan 00, 31 Jan 01
central canal, 400x

Examine the cross sections of the spinal cord with the 4x objective first. Locate all major regions as listed below. At higher power, note cell structure of central canal, posterior and anterior gray horns, and funiculi. Then illustrate first at lowest power and label the following:

Slide 4: Spinal Cord cross section and longitudinal sections, H-Eosin (H 1537)
Make four illustrations:
 
Click on images to enlarge:

overview:                                 anterior median fissure, 100x:
Spinal Cord, 40x
           Anterior Median Fissure

anterior median fissure, 400x:       posterior median sulcus, 80x:
anterior median fissure, 400x                            posterior median sulcus, 100x


 
Spinal Cord cross section

(40x): (MF 4th : pages 99, 101)

anterior median fissure
pia mater
arachnoid meninx
dura mater (if present)
posterior median sulcus
posterior gray horn
posterior funiculus
lateral gray horn
lateral funiculus
central canal
ependymal cells
white commissure
grey commissure
anterior gray horn
filaments of ventral root
anterior funiculus

Here is a labeled view of the spinal cord.

Central Canal, 400x
a: Central Canal (400x)
ependymal cells
cilia
grey commissure
lumen

Here is a labeled view of the central canal.
Anterior Horn Cell, 400x
b: Anterior horn cell (400x)
clear hillock
nucleus
nucleolus
Nissl bodies

Here is a labeled view of anterior horn cells.
myelinated fibers, 400x
c: myelinated fibers (See MF 4 th:93-95) (400x)
(cross section at posterior funiculus)
multiple cross sections of fibers
myelin sheath
axon
Dorsal Root Ganglioin, 40x
Slide 5: Spinal Cord with Dorsal Root Ganglion cross section,
       Ag stain (H 1560) 

(MF 4 th: page 97) Single large illustration showing all of the following (40x):

Here is a labeled view of the spinal cord with dorsal root ganglion.
spinal cord connected to dorsal root, 100x
spinal cord general features:
posterior gray horn
anterior gray horn
anterior median fissure
posterior median sulcus
dorsal root ganglion
dorsal root ganglion, 100x
dorsal root ganglion features:
ganglion cells
nerve fibers
epineurium (capsule)
dorsal root
if present:
ventral root
spinal nerve

Here is a labeled view of the dorsal root ganglion..

  ventral root, 100x  This detail shows the ventral root where it is formed from fibers from the anterior gray horn

 
Additional images of the spinal cord: