The right vagal trunk travels on the anterior surface of the oesphagus.

Reflexive afferent fibres from the bronchi accompany parasympathetic fibres to sensory ganglia.

Cranial nerves three, seven and nine synapse at intramural ganglia.

The vagus nerve passes from the cranium into the neck through the foramen magnum.

Noradrenaline is the neurotransmitter found in the synaptic junction of postganglionic neurons.