In: Anatomy and Physiology
Walking along the beach you stand on a sharp bit of glass that cuts your foot. Based on the systems we have covered in the unit, describe and explain the short-term sensory, autonomic and motor mechanisms that would be triggered by this injury.
when we had stepped on a sharp object. The sensory (pain) neuron carries an impulse to an interneuron in the spinal cord. The interneuron synapses with motor neurons(foot) which withdraws the foot away from the sharp object.
This response is Carried by somatic nervous system.
The somatic nervous system has these three functions mainly: sensory, integrative and motor ; in our given case it is as following -
1. Sensory-afferent neurons detects the stimulus in the external environment and its respective coordination with the body.
Stepping on sharp object at beach would trigger the pain response.
2. Autonomic integration - This part of somatic nervous system interprets and collects the sensory information within the central nervous system (CNS)
The pain response will be examined , recognised and processed in CNS.
3. Motor - efferent neurons produce a response in our case the muscle contraction would take place.
Muscle contraction produced causing the foot would be rapidly withdrawn. These receptors detect changes in the external environment and the effectors bring about the motions of the skeleton through motor response via muscular contraction.