divisions of the NS Flashcards
main function of NS
receive and process information to form a response
what is the CNS comprised of
the brain and spinal cord
what is the CNS main function
to process information received from the body’s external and internal environments
define spinal cord
long thin bundle of nerve tissue that extends from the base of the brain to the lower back
what is the PNS
the entire network of nerves located outside of the CNS
what is the PNS main function
to transmit information from muscles organs and glands to and from the CNS
what does the somatic nervous system do
network of nerves that carries sensory information to the CNS and motor information from the CNS
what is the somatic system responsible for
communicating all voluntary movement
what does the autonomic nervous system do
connects the CNS to the body’s internal organs and glands, providing feedback to the brain about their activities
what is the sympathetic NS responsible for
increasing the activity of most visceral muscles, organs and glands during vigorous activity, stress or threat
what is the parasympathetic NS responsible for
decreasing activity of most visceral muscles, organs and glands, maintaining a steady, balanced state of normal functioning
