Question

Analyse the following information and answer the questions.

SI. No.	Organ	List-1 Effect of Nervous system	List-2 Effect of Nervous system
1	Eye	Dilates pupil	Constricts pupil.
2	Mouth	Inhibits salivation	Stimulates salivation
3	Lungs	Relaxes bronchi	Constrict bronchi
4	Heart	Accelerates heartbeat	heartbeat to normalcy
5	Blood vessel	Increase blood pressure	Decrease blood pressure.
6	Pancreas	Inhibits Pancreas activity	Stimulates Pancreas activity

Write two functions of Sympathetic Nervous System.

Answer 1

• The sympathetic nervous system (SNS) is one of the two main divisions of the autonomic nervous system, the other being the parasympathetic nervous system. The autonomic nervous system functions to regulate the body's unconscious actions. The sympathetic nervous system's primary process is to stimulate the body's fight-or-flight response.

• Messages travel through the sympathetic nervous system in a bi-directional flow. Efferent messages can trigger changes in different parts of the body simultaneously. For example, the sympathetic nervous system can accelerate heart rate; constrict blood vessels; cause pupillary dilation, perspiration (sweating); and raise blood pressure, Inhibits salivation and Inhibits Pancreas activity.