1.
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The parasympathetic nervous system handles the after-dinner activities of our bodies.
|
Organs Involved |
Major Nerve Supply |
Effects of Nervous System to their functions |
|
Heart |
Vagus nerve (X) |
Reduces the heart rate by the production of acetylcholine |
|
Salivary Glands |
Glossopharyngeal nerve (CN IX) |
Lubricates mouth and throat and aids in digestion |
|
Esophagus |
Vagus nerve (X) |
Contracts as it moves food into the stomach |
|
Lungs |
Vagus nerve (X) |
Tightens bronchi in the lungs to support the airway and allow lungs to rest |
|
Stomach |
Vagus nerve (X) |
Operates the movement of stomach and stimulates digestion |
|
Pancreas |
Vagus nerve (X) |
Releases insulin and digestive enzymes |
|
Intestines |
Vagus nerve (X) |
Before feces excretion, intestines tunes or regulates the propulsive movement of the colon |
|
Gallbladder |
Vagus nerve (X) |
Balances the gallbladder’s muscular tone |
|
Urinary Bladder |
Pelvic parasympathetic nerve |
Regulates urine passage and handles the contraction of the bladder |
|
Rectum |
Pelvic parasympathetic nerve |
Regulates the capacity of the body and the passage of feces which ultimately results in excretion. |
2. The sympathetic nervous system is responsible for the effects that my friend experienced in this ordeal. The fight-or-flight reaction, triggered in frightening or stressful situations, is controlled by the sympathetic nervous system. The hormones that the sympathetic nervous system releases in times of emergency like my friend experienced, contribute to sweaty hands. Finally, it is also responsible for the uncontrollable goosebumps reaction that my friend experienced. The body's fight-or-flight response, which the sympathetic nervous system controls as a reaction to frightening situations, triggers goosebumps. Hence, it is clear that the sympathetic nervous system is responsible for my friend’s response because of the increase in my friend’s perspiration and heart rate as well as the rising of hair which is the goosebumps.