consists of the central nervous system and the peripheral nervous system
what is the central nervous system
consists f the brain and spinal cord and is where decisions and commands are made
what is the peripheral nervous system
sends info to the central nervous system from the outside world and transmits the message from the central nervous system to muscles and glands in the body
What is the somatic nervous system
transmits info from receptor cells in the sense organs to the central nervous system, also receives info from the central nervous system that directs muscles to act
what is the autonomic nervous system
transmits information to and from internal bodily organs. its involuntary and has two main divisions called the sympathetic and parasympathetic nervous system.
why is the cerebral cortex important
distinguishes our higher mental functions from animals.
What is the endocrine system
information system that instructs glands to secrete hormones into the bloodstream.
what happens in the sympathetic state
increased heart rate
increased breathing
pupils dilate
inhibits digestion
inhibits salivation
what happens during the parasympathetic state
decrease heart rate
decrease breathing rate
pupils constrict
stimulates digestion
stimulates saliva production
name the major sub divisions of the nervous system