Autonomic Nervous System

Question 1

What are the two systems involved with the autonomic NS? (ANS)

Answer 1

Sympathetic NS and Parasympathetic NS

Question 2

What is the ANS function?

Answer 2

Receives a continual supply of sensory input from sensory receptors which monitor to body internal environment to maintain homeostasis

Question 3

How does the ANS operate?

Answer 3

It operates via a reflex arc in the hypothalamus, brainstem and spinal cord

Question 4

What parts of the body does the ANS control?

Answer 4

Involuntary control of smooth muscles, cardiac muscles and glands

Question 5

What is the Sympathetic NS responsible for?

Answer 5

Promotes ‘flight or fight’ and inhibits non-essential activities. (Sixs E’s) emergency, embarrassment, exercise, excitement and energy expenditure.

Question 6

What is the parasympathetic NS responsible for?

Answer 6

Restoration and conservation of body energy. The three decrease:
- decreased heart rate 
- decreased airway diameter
- decreased pupil diameter
'rest and digest' are where these actions are promoted
'SLUDD'
- salvation 
- lacrimation 
- urination 
- digestion 
- defecation

Question 7

The corticobulbar tracts convey nerve impulses that control movements of the

Answer 7

head and neck

Question 8

What part of the brain receives information about planned activity, compares this with actual movements, and supplies corrective feedback signals to other parts of the brain?

Answer 8

Cerebellum