Sensory neurons which trigger reflexes are called nociceptive neurons. After entering the dorsal root of the spinal cord, the nociceptive neuron branches into two terminals: one terminal synapses with an interneuron - a localised neuron which is located entirely within the grey matter of the spinal cord, and this in turn synapses with a motor neuron which then triggers the fast reflex action. The reflex is initiated solely within the spinal cord & doesn't involve the brain at all, but at the same time, the second branch of the nociceptive neuron synapses with a sensory neuron which goes to the brain; the brain then registers the sensation of pain, and can also initiate further motor action if necessary.
A reflex arc will travel from the receptor (reactor to stimuli) to sensory neurons, to the interneurons which will respond (unlike the brain in conscious action) and send the message to motor neurons which will operate the effector (carries out response to stimuli).
Sensory neurons > interneurons in spinal cord > motor neurons
It is called a reflex arc.
Reflex Arc
The short pathway that carries the impulse for an automatic response is called a reflex arc.
reflex arc.
as a part of the olfactory reflex pathway
The reflex arc is the nerve pathway that the signal follows. For example, the knee jerk reflex arc has a stimulus going to an interneuron in the spine and a motor neuron completes the arc by causing the knee to jerk. A reflex is just the action itself.
Reflex Arc
Reflex Arc
Afferent pathway
reflex arc
Reflexes are rapid involuntary responses to a given stimuli. The reflex pathway that only has one synapse in the CNS is called the monosynaptic reflex arc.
Afferent pathway
The short pathway that carries the impulse for an automatic response is called a reflex arc.
A Reflex
reflex arc.
as a part of the olfactory reflex pathway
The reflex arc is the nerve pathway that the signal follows. For example, the knee jerk reflex arc has a stimulus going to an interneuron in the spine and a motor neuron completes the arc by causing the knee to jerk. A reflex is just the action itself.
The pathway that an impulse travels from your foot back to your leg is an example of a reflex arc. A reflex arc includes a sensory receptor (in this case, a receptor in your toe), sensory neuron, motor neuron, and effector (leg muscle). Some reflex arcs include interneurons. In other reflex arcs, a sensory neuron communicates directly with a motor neuron.