Something has gone very very wrong during your visit to Jura

Something has gone very, very wrong during your visit to Jurassic Park. The T. Rex has escaped from its compound and is chasing you. Draw a diagram that shows how the Sympathetic Branch of your Autonomic Nervous System coordinates your body\'s response to the danger in order to help you escape.

Solution

The sympathetic nervous system is also called as the thoraco-lumbar division, as it contains the preganglionic neurons of the thoraco-lumbar outflow. The sympathetic nervous system is concerned with preparing the organism for emergency (fight or flight).

During running, the release of adrenaline and noradrenaline is increased by the sympathetic stimulation. This causes increased blood pressure and cardiac output, which helps to meet the increased demand of oxygen.

The increased rate of metabolism and activation of energy reserves also occurs to meet the energy demands. The excess heat produced by the increased rate of metabolism is counteracted by increased sweating, thus maintaining the normal body temperature. The rate of respiration increases to get more oxygen and exhale the carbon dioxide produced.