Question

Sympathetic nervous system do the

Answer 1

The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also includes the parasympathetic nervous system (PNS). The sympathetic nervous system activates what is often termed the fight or flight response.
ROLE OF SYMPATHETIC NERVOUS SYSTEM
In response to a stressor, the sympathetic nervous system orchestrates what you familiarly call the fight-or-flight response. It increases muscle blood flow and tension, dilates pupils, accelerates heart rate and respiration, and increases perspiration and arterial blood pressure.

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Answer 2

SYMPATHETIC SYSTEM IS A PART OF AUTONOMOUS NERVOUS SYSTEM.

  ACTIONS OF SYMPATHETIC SYSTEM : -

• THE PUPIL IN THE EYE DILATES.
• PRODUCTION OF SALIVA DECREASES.
• TRACHEA EXPANDS.
• HEART BEAT INCREASES.
• GASTRIC ACTIVITIES SLOWS DOWN.
• PRODUCTION OF HORMONES INCREASES.