Comparing CNS with PNS

Question 1

Both part of nervous system

Answer 1

so both play a role in coordinating actions of the organism

Question 2

Both send and receive signals

Answer 2

CNS can receive sensory info from PNS, but it can also send instructions to PNS
Likewise, the PNS sends sensory info to CNS but also receives signals from the CNS and from outside world.

Question 3

Whether conscious or unconscious

Answer 3

CNS is partially conscious whilst PNS is entirely unconscious e.g., brain coordinates conscious experiences, but the PNS’s actions are all unconscious.

Question 4

Indirect or direct communication

Answer 4

PNS directly interacts with the outside world whereas CNS indirectly communicates with outside world.
PNS’s sensory organs (e.g., eyes) directly receive info from outside world but the CNS only receives signals from outside world once these have been processed by the PNS.