The Evolution of the Cerebrospinal Fluid(CSF) System

Synopsis

In the following synopsis the availability of the various sections on this web site is indicated by the bracketed link.

• Evolution - Morphology - Embryology - Darwinism
• Central Nervous System Evolution - lack of studies on the Cerebrospinal Fluid System
• Comparative Morphology as a Method of Study - advantages and disadvantages
• Embryological Studies
• Techniques used
• Animals chosen (Table I) and Preparations obtained
• Limitations of techniques
• Structures studied and Comparisons made (Table II)

Presentation of Animals Studied

• General (click to read)
• Amphioxus 
• Lamprey 
• Dogfish 
• Goldfish 
• Lungfish  (click to read)
• Frog  (click to read)
• Salamander 
• Turtle 
• Pigeon  (click to read)
• Mouse 
• Anthropoids - Human - do

Comparative Morphology

• Ventricular System - and previous literature
• Hindbrain Roof - do
• Meninges and subarachnoid space - do
• Ependyma and derivatives - do
• Choroid Plexuses - do
• CSF/vascular relationships - do
• Table II

CSF formation, flow, and absorption

• Evidence from various animals - incomplete
• Evolution of the CSF pathway
• Function and purpose of the CSF and its pathway