Question

Using an example, describe the process of a somatic reflex loop.

Answer 1

Reflex action loop comprises of intant movements which are produced in response to a particular stimulus. Reflex action comprises of two neurons sensory and motor neuron. Reflex arc is monosynaptic.

• When a hot object is touched, the hand is withdrawed.
• The heat stimulus triggers the sensory impulse which travels down CNS.
• The sensory neuron then synapses with interneurons which connect to motor neurons.
• A few of these send motor impulses to the flexors which promote withdrawal of hands.