The Nervous System Crossword
This printable crossword puzzle on the topic of Human Body Systems has 18 clues. Answers range from 3 to 16 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Description
Master controlling and communicating system of body
Transmit impulses from sensory receptors toward CNS
Carry impulses from CNS to effectors
Shuttle signals through CNS pathways; most are entirely within CNS
Consist of the brain and spinal cord
The portion of the nervous system outside CNS
sensory fibers—convey impulses from skin, skeletal muscles, and joints to CNS
convey impulses from visceral organs to CNS
small cells that surround and wrap delicate neurons
excitable cells that transmit electrical signals
Processes wrap CNS nerve fibers, forming insulating myelin sheaths thicker nerve fibers
Surround all peripheral nerve fibers and form myelin sheaths in thicker nerve fibers
Bundles of neuron processes in CNS
Bundles of neuron processes in PNS
Receptive (input) region of neuron
Conducting region of neuron
Protects and electrically insulates axon Increases speed of nerve impulse transmission
Regions of brain and spinal cord with dense collections of myelinated fibers – usually fiber tracts
