What kind of organs are the brain and spinal cord?
- Hollow organ
- Outer Layer: Meninges, Dense Regular CT
- Middle Layer: Nervous System
- Inner Layer: Nervous tissue, specifically ependymal cells
- In brain called ventricles
- In spinal cord called central canal
- Fluid fows through ventricles, central canal, & underneath the meninges: cerebrospinal fluid (CSF)