Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Reflex Arc - WordPress.com
Document related concepts
Neuroplasticity wikipedia , lookup
Activity-dependent plasticity wikipedia , lookup
Neural modeling fields wikipedia , lookup
Response priming wikipedia , lookup
Neuroscience in space wikipedia , lookup
Time perception wikipedia , lookup
Endocannabinoid system wikipedia , lookup
Proprioception wikipedia , lookup
Psychophysics wikipedia , lookup
Embodied cognitive science wikipedia , lookup
Neurocomputational speech processing wikipedia , lookup
Holonomic brain theory wikipedia , lookup
Mirror neuron wikipedia , lookup
Premovement neuronal activity wikipedia , lookup
Development of the nervous system wikipedia , lookup
Molecular neuroscience wikipedia , lookup
End-plate potential wikipedia , lookup
Neural coding wikipedia , lookup
Embodied language processing wikipedia , lookup
Synaptogenesis wikipedia , lookup
Nonsynaptic plasticity wikipedia , lookup
Sensory substitution wikipedia , lookup
Single-unit recording wikipedia , lookup
Central pattern generator wikipedia , lookup
Feature detection (nervous system) wikipedia , lookup
Chemical synapse wikipedia , lookup
Neurotransmitter wikipedia , lookup
Neuropsychopharmacology wikipedia , lookup
Caridoid escape reaction wikipedia , lookup
Neuromuscular junction wikipedia , lookup
Evoked potential wikipedia , lookup
Synaptic gating wikipedia , lookup
Nervous system network models wikipedia , lookup
Transcript
The Reflex Arc The Reflex Arc Reflexes are automatic - don’t have to think about them Message doesn’t have to go to brain for response to occur, sent directly to spinal cord Since there is no processing, reactions can be very quick spinal cord The Reflex Arc Only three neurons involved: sensory, interneuron, motor Small number of neurons involved makes response faster interneuron motor neuron spinal cord sensory neuron The Reflex Arc Step 1: Stimulus sensed by sensory receptor Step 2: Action potential travels down sensory neuron Step 3: Interneuron in spinal cord (integrator) transfers message from sensory neuron to motor neuron Step 4: Motor neuron sends message to muscle Step 5: Muscle (effector) contracts motor neuron receptor stimulus interneuron sensory neuron muscle The Reflex Arc Step 1: Stimulus sensed by sensory receptor Electrical message that travels along each axon is converted to Step 2: Action potential travels down sensory neuron a chemical one at each synapse Step 3: Interneuron in spinal cord (integrator) transfers How sensory many synapses there?neuron Only two message from neuron are to motor Fewer synapses means response is faster Step 4: Motor neuron sends message to muscle motor neuron receptor stimulus interneuron sensory neuron muscle
