nervous system specific Flashcards
what is the nervous system divided into
cns and pns
how is the nervous system effective
the cns and pns work together so the whole system functions effectively
where do the cns and pns collect info from (two locations)
inside the body and the environment
what do the pns and cns do with information
process it and then dispatch instructions to the rest of the body, facilitating an appropriate response
what network of nerves does the pns contain
spinal and cranial nerves
where are sensory receptors located
pns
what do sensory receptors do
process internal and external changes
what is the cns made up of
brain and spinal cord
what functions does the brain carry out
- regulating body temperature and heart rate
- language production and understanding
- coordinating movement
what kind of functions does the cerebral cortex carry out
memory, problem-solving, thinking, learning etc
what does the cerebral cortex distinguish humans from
animals
what does the spinal cord do
ensures that signals from the brain are transmitted to the rest of the body via the pns
what connects the brain and spinal cord
brainstem
what are the divisions of pns
somatic, autonoic
what does the sns do
transmits and receives messages from the senses apart from sight
why doesn’t sns transmit and receive info from sight
the retina and optic nerve are connected directly to brain
what does the sns direct to move
muscles
what kind of movement does sns control
voluntary, conscious movement
ex of sns movement
throwing a ball
what is sns ALSO responsible for
reflex arc
what does the ans do
transmits info to and from internal body organs
what information comes from internal body organs
heart-rate, breathing, stress response, digestion, sexual arousal
features of the ans
involuntary, cannot be controlled consciously
how is the ans divided
sympathetic and parasympathetic
