Coordination and response Flashcards
what does the nervous system do?
enables humans to react to their environment and coordinate their behaviour and regulate bodily functions
what is a nervous system?
organ system
what is the central nervous system?
the brain and spinal chord
what is the peripheral nervous system?
nerves, muscles and glands outside of this
what does the peripheral nervous system change?
it changes in the internal and external environment and effect changes in the body
nervous system - signal?
electrical
endocrine system- signal?
chemical
nervous system- transmission?
neurons
endocrine system- transmission?
blood
nervous system- speed?
fast
endocrine system- speed?
slow
nervous system- duration?
short term
endocrine system- duration?
long term
reflex?
- prevents damage done to the organisms and death
- fast responses
reflex arc?
a pathway that the reflex action takes
stimulus?
something in the outside environment
receptor?
a cell that detects change
coordinator?
the cell that decides what the body should do
effector?
the muscles or glands that reacts to the change
response?
what the body does to react to change
relay neurone?
- short
- lots of connections
- connects the sensory to the motor
motor neurone?
- long
- lots of connections
- nucleus at one end
- carries signals to the effector
sensory neurone?
- long
- carries signals from the receptor to central neurone system
- nucleus in the middle
detection - skin?
pressure, temp, change, pain
