Question

Question 50 1 pts Which of the following does NOT occur during the activation of the sympathetic division of the autonomic nervous system? Stimulation of pacemaker cells increases in the heart rate Release of glucose from the liver increases energy availability Dilation of the pupils. Release of epinephrine and norepinephrine. Stimulation of the enteric nervous system increases food digestion and absorption Question 51 1 pts It has the thinnest walls and is the site of nutrient, gas, The smallest blood vessels is the and waste exchange. O artery O capillary Ovein arteriole O venule

Answer 1

The correct option is E (Stimulation of enteric nervous system increases food digestion and absorption). This means this activity is not shown by the sympatheic nervous system. This is a function of parasympathetic nervous system.

Explanation: The two branches of autonomic nervous system are sympathetic (Fight or flight system) and parasympathetic (Rest and digest system) nervous systems. Most of the times these two have opposite or antagonistic effects on particular activities. For example, sympathetic nervous system increases blood pressure whereas; parasympathetic nervous system decreases blood pressure.

General sympathetic division helps support exercise or emergency actions, so called fight or flight responses and the parasympathetic division takes care of the rest and digestion activities. In addition to these functions, sympathetic nervous also have the following functions.

• Inhibits the activity of intestines
• Relaxes bladder
• Dilates bronchi
• Inhibits salivation etc.,