central nervous system [2]
Part of the nervous system connected to the peripheral nervous system formed by the brain and the spinal cord; it controls and deciphers nerve information.
cerebrum 
Large part of the brain formed of two hemispheres; it contains the control center of the higher nerve functions (motor activities, language and others).
cerebellum 
Part of the brain that mainly controls motor coordination, equilibrium, muscle tone and posture.
dura mater 
Thick and resistant outer meninx fusing with the tissue covering the spinal nerves; it does not adhere directly to the bony vertebral wall.
spinal column 
Movable bony axis made up of various parts articulating with each other (vertebrae); it supports the skeleton and contains the spinal cord.
filum terminale 
Thin fibrous cord that is a continuation of the spinal cord between the second lumbar vertebra and the coccyx.
internal filum terminale 
Terminal part of the dura mater extending to the second sacral vertebra.
spinal cord 
Part of the central nervous system located in the spinal column; it receives and transmits nerve information and releases the reflexes.