Autonomic Nervous System

Question 1

Sympathetic Nervous System

(3)

Answer 1

• activates NOG to prepare body for vigourous activity or stressful/threatening situations
• like an emergency system which activates when in danger or stress
• readies the body for action such as fight-flight-freeze response

Non-skeletal Muscles
Organs
Glands

Question 2

Parasympathetic Nervous System

(3)

Answer 2

• operates in times of calmness
• responsible for maintaining automatic day-to-day bodily functions like digestion, heart rate, breathing (homeostasis)
• counteracting sympathetic nervous system by restoring body to a state of calm once the need of SNS activation has passed

Question 3

Effects of SNS

(8)

Answer 3

• pupils dilate
• inhibition of saliva
• increase sweat production
• heartbeat accelerates
• inhibition of digestion
• stimulates glucose release
• stimulate adrenaline secretion
• relaxes bladder

Question 4

Effects of PSNS

(8)

Answer 4

• pupils contract
• exhibition of saliva
• decrease sweat production
• heartbeat decelerates
• stimulates digestion
• stimulates gall bladder
• inhibition of adrenaline secretion
• contracts bladder

Question 5

Enteric Nervous System

(3) (brain of the gut)

Answer 5

• in the gastrointestinal tract, from esophagus to rectum
• can function independently of the CNS
• responsible for controlling functions of the digestive system (motility)