polysynaptic
Polysynaptic Reflex
integration neuron or interneuron
Many authors refer to the CNS portion of the reflex arc as the integration center.In regards to a monosynaptic reflex arc, the synapse is the only portion of the integration center.Polysynaptic reflex arcs, have multiple synapses and interneuron(s).
a monosynaptic reflex
The component that determines the response to a stimulus in a reflex arc is the interneuron. This neuron receives the sensory input from the sensory neuron, processes the information, and then sends signals to initiate the appropriate motor response via the motor neuron.
Polysynaptic Reflex
Withdrawal reflex or flexor reflex employs sensory neuron, interneuron and motor neuron.
only the Interneuron
The knee reflex is also called the knee-jerk reflex by tapping the patellar tendon with a reflex hammer. This sends sensory information to the spinal cord at L4 and motor information back to the Quadriceps in the thigh (relaxing the hamstrings). This is reflex requires only two neurons. No interneuron. And so is very rapid. It is important in balance and posture.
integration neuron or interneuron
The afferent neurons synapse with the interneuron.
interneuron
In a typical reflex arc, the 3 kinds are: # sensory # interneuron # and motor.
Many authors refer to the CNS portion of the reflex arc as the integration center.In regards to a monosynaptic reflex arc, the synapse is the only portion of the integration center.Polysynaptic reflex arcs, have multiple synapses and interneuron(s).
Monosynaptic meaning there is one synapse. Polysynaptic means there are more than one synapse. If a interneuron is present it is polysynaptic, if no interneuron is present then it is monosynaptic. Ipsilateral meaning the same side and contralateral meaning opposite sides.
Receptor ---> sensory neuron----> interneuron (at spinal cord)---->motor neuron---->effector. The Achelles tendon reflex is a good example of how this happens. You do send infromation to the brain in the form of an "incident report" but his is much slower.
sensory, interneuron, motor nueron