Autonomic Nervous System

Which of the following neurotransmitters is responsible for the majority of parasympathetic nerve activity in the body?

• Norepinephrine

• Acetylcholine

• Dopamine

• Serotonin

Which of the following is not a characteristic of the sympathetic nervous system?

•  Increased heart rate

• Pupil constriction

• Bronchodilation

• Increased blood pressure

Which of the following receptors is responsible for the effects of epinephrine and norepinephrine on the sympathetic nervous system?

• Nicotinic receptors

• Muscarinic receptors

• Alpha-adrenergic receptors

• Beta-adrenergic receptors

Which of the following is not a division of the autonomic nervous system?

• Sympathetic nervous system

• Parasympathetic nervous system

• Enteric nervous system

• Somatic nervous system

Preganglionic sympathetic axons pass through which of the following structures?

• Dorsal primary rami

• White rami

• Gray rami

• Ventral primary rami

The sweat glands and piloerector muscles of hairy skin are innervated by which of the following fiber types?

• Cholinergic postganglionic parasympathetic fibers

• Cholinergic postganglionic sympathetic fibers

• Adrenergic preganglionic parasympathetic fibers

• Adrenergic postganglionic sympathetic fibers