Neurotransmitters in the ANS Quiz

Which neurons are included in cholinergic neurons?

• Only sympathetic ganglionic neurons

• Only parasympathetic ganglionic neurons

• All sympathetic and parasympathetic preganglionic neurons

• Only neurons in the CNS

What are neurons that synthesize and secrete NE called?

• Cholinergic neurons

• Adrenergic neurons

• Dopaminergic neurons

• Serotonergic neurons

Where are nicotinic receptors found?

• Only in the CNS

• On the cell bodies of all ganglionic neurons and adrenal medulla

• Only in the adrenal medulla

• Only in the PNS

What effect do nicotinic receptors have when they bind ACh?

• Inhibitory postsynaptic potential

• No effect

• Excitatory postsynaptic potential

• Depolarization without action potential

Where are muscarinic receptors found?

• Only in the CNS

• In all target plasma membranes in the parasympathetic division

• Only in the adrenal medulla

• Only in the sympathetic division

What do all muscarinic receptors use?

• Direct ion channels

• Second messenger systems

• Voltage-gated channels

• Ligand-gated channels

What is the role of adrenergic neurons in the ANS?

• They secrete dopamine

• They secrete norepinephrine

• They secrete serotonin

• They secrete acetylcholine

What is the function of cholinergic receptors?

• Bind norepinephrine

• Bind acetylcholine

• Bind dopamine

• Bind serotonin

Which receptors are involved in the sympathetic ganglionic neurons?

• Only nicotinic receptors

• Only muscarinic receptors

• Adrenergic receptors

• Only serotonergic receptors

What is the effect of muscarinic receptors on target cells?

• Always excitatory

• Always inhibitory

• Excitatory or inhibitory depending on the type

• No effect