"The parasympathetic ganglia are a group of 4 bilateral autonomic ganglia in the head and neck. Each has three roots entering the ganglion and a variable number of exiting branches, but only parasympathetic fibres synapse within the ganglion. Sensory and sympathetic fibres only traversing through the ganglion to reach end organ. Parasympathetic fibres originate from the autonomic components of the cranial nerves III, VII and IX. They are involved in parasympathetic control of the eye, major and lesser salivary glands and the lacrimal glands, and consist of the:"
"The parasympathetic ganglia are a group of 4 bilateral autonomic ganglia in the head and neck. Each has three roots entering the ganglion and a variable number of exiting branches, but only parasympathetic fibres synapse within the ganglion. Sensory and sympathetic fibres only traversing through the ganglion to reach end organ. Parasympathetic fibres originate from the autonomic components of the cranial nerves III, VII and IX. They are involved in parasympathetic control of the eye, major and lesser salivary glands and the lacrimal glands, and consist of the:"