The Nervous system Flashcards
1
Q
What is the human nervous system, its role and its features?
A
Definition: A specialised network of cells in the body that act as our primary communication system
Role: To collect, process and respond to information in the environment , to co-ordinate the working of different organs in the body
Features: Uses electric signals (fast moving)
1
Q
What are the roles of each division?
A
CNS: centre of conscious awareness; made up of brain and spinal cord
PNS: transmits messages via millions of neurons to and from CNS
ANS: governs body’s vital functions (e.g. breathing and heart rate)
SNS: controls muscle movements through information from receptors
SNS: Fight or Flight
PSNS: Rest and Digest
