central nervous system 
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.
Large part of the brain formed of two hemispheres; it contains the control center of the higher nerve functions (motor activities, language and others).
Part of the brain that mainly controls motor coordination, equilibrium, muscle tone and posture.
Thick and resistant outer meninx fusing with the tissue covering the spinal nerves; it does not adhere directly to the bony vertebral wall.
Movable bony axis made up of various parts articulating with each other (vertebrae); it supports the skeleton and contains the spinal cord.
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.
Part of the central nervous system located in the spinal column; it receives and transmits nerve information and releases the reflexes.