157. Sacrum and Coccyx 
158. Vertebral Ligaments: Lumbosacral Region 
159. Vertebral Ligaments: Lumbar Region 
160. Spinal Cord and Ventral Rami in Situ 
161. Relation of Spinal Nerve Roots to Vertebrae 
162. Dermatomes 
163. Sympathetic Nervous System: Schema 
164. Parasympathetic Nervous System: Schema 
165. Spinal Membranes and Nerve Roots 
166. Spinal Nerve Origin: Cross Sections 
167. Arteries of Spinal Cord: Schema 
168. Arteries of Spinal Cord: Intrinsic Distribution
