Each olfactory sensory neuron responds to a single type of odorant molecule. True or false? Explain your choice. During an ophthalmoscopic examination, Mrs. James was found to have bilateral...

Each olfactory sensory neuron responds to a single type of odorant molecule. True or false? Explain your choice.

During an ophthalmoscopic examination, Mrs. James was found to have bilateral papilledema. Further investigation indicated that this condition resulted from a rapidly growing intracranial tumor. First, define papilledema (see Related Clinical Terms). Then explain its presence in terms of Mrs. James’s diagnosis.