Tuesday, January 31, 2012

2.82



1. motor nerve
orange - in the spine
end- effector (muscel)
electrical/nerve impulse is inside the nerve from the cell body to the synaptic knob.
long structure = axon
in mamals it is surrounded by the schwann cell (contains fat) increases speed of nerve conduction
this links receptor to effector.
2. Endocrine system
endocrine gland contains hormone (protein or steroid)
eg: Adrenal glad
hormone secreated into blood (adrenaline)
then it will arrive at organ that it will have an effect on = target tissue.
they can have multiple targets and multiple effects
Nerves= fast Hormones= slow

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