ANS

Question 1

Define Autonomic Nervous system and Somatic nervous system

Answer 1

• Autonomic Nervous System: a functional division of the nervous system that is not voluntarily controlled
• Somatic Nervous System: a functional division of the nervous system that is voluntarily controlled

Question 2

Define:

• Sympathetic Nervous system
• Sympathomimetics
• Sympatholytics
• Parasympathetic Nervous system
• Parasympathomimetics
• Parasympatholytics

Answer 2

• Sympathetic Nervous System: the branch of the autonomic nervous system that opposes physiological effects of the parasympathetic division
• Sympathomimetic: sympathetic agonist
• Sympatholytic: sympathetic antagonist
• Parasympathetic Nervous System: the branch of the autonomic nervous system that opposes physiological effects of the sympathetic division
• Parasympathomimetic: parasympathetic agonist
• Parasympatholytic: parasympathetic antagonist

Question 3

What are catecholamines

Answer 3

Catecholamines: biogenic amines derived from tyramine including
dopamine, epinephrine and norepinephrine; produced from tyrosine in the adrenal medulla and postganglionic fibers of the sympathetic nervous system

Question 4

Define:

• Myosis
• Mydriasis
• Cycloplegia

Answer 4

• Miosis: pupillary constriction
• Mydriasis: pupillary dilation
• Cycloplegia: paralysis of the ciliary body musculature responsible for accommodation

Question 5

Autonomic nervous system

Answer 5

• Deals primarily with control and integration of visceral functions necessary for life support:
  
  • Cardiac output
  • Blood flow and distribution
  • Digestion

• Evidence strongly suggests that the ANS, particularly at the level
of the vagal nerve, influences immune function and some CNS
activities such as seizure regulation

FIGHT & FLIGHT
• Regulated by the sympathetic or adrenergic branch of the
autonomic nervous system

• REST & DIGEST
• Regulated by the parasympathetic or cholinergic branch of the
autonomic nervous system