Quiz on the Autonomic Nervous System

What does the autonomic nervous system (ANS) primarily regulate?

• Cognitive functions

• Involuntary bodily functions

• Voluntary muscle movements

• Sensory perception

Which component of the ANS prepares the body for 'fight or flight' responses?

• Enteric Nervous System

• Central Nervous System

• Parasympathetic Nervous System

• Sympathetic Nervous System

What is the primary function of the parasympathetic nervous system?

• Enhance respiratory rate

• Promote 'rest and digest' functions

• Increase heart rate

• Stimulate the adrenal medulla

Which neurotransmitter is primarily released by postganglionic sympathetic neurons?

• Acetylcholine

• Norepinephrine

• Serotonin

• Dopamine

What type of receptors are found on target organs of the parasympathetic nervous system?

• Nicotinic receptors

• Muscarinic receptors

• Beta receptors

• Adrenergic receptors

Which of the following is NOT a function of the sympathetic nervous system?

• Inhibiting digestion

• Dilating airways

• Increasing blood pressure

• Slowing heart rate

What is the role of the enteric nervous system?

• Control gastrointestinal functions

• Manage respiratory rate

• Regulate heart rate

• Coordinate muscle movements

Which type of adrenergic receptor is primarily involved in vasoconstriction?

• Beta-1 receptors

• Alpha-1 receptors

• Alpha-2 receptors

• Beta-2 receptors

What is the effect of norepinephrine on the heart?

• Decreases heart rate

• Increases heart rate

• Regulates blood flow

• No effect on heart rate

Which of the following neurotransmitters is involved in smooth muscle relaxation?

• Epinephrine

• Nitric Oxide

• Norepinephrine

• Acetylcholine