Parasympathetic System

Question 1

What is the Main Function (Rest & Digest)

Answer 1

👉 “SLUDD”
• Salivation
• Lacrimation
• Urination
• Digestion
• Defecation

Add-on: “SLUDD & 3B’s”
• Bradycardia (↓ HR)
• Bronchoconstriction
• Bowel movement ↑

Question 2

Parasympathetic = PEACE Mode

Answer 2

👉 “PEACE”
• Pupils constrict (miosis)
• Energy conserved
• Activity of GI ↑
• Cardiac rate ↓
• Elimination (urine & stool ↑)

Question 3

Neurotransmitter of PNS?

Answer 3

👉 “ACh = Always Chilling”
• Acetylcholine is the main neurotransmitter.
• It makes the body relax and chill.

Question 4

PNS Effects

Answer 4

👉 “PNS = CHILL”
• Constricted pupils
• Heart rate ↓ (bradycardia)
• Increased digestion
• Lacrimation/salivation ↑
• Loosened sphincters (urination/defecation ↑)