Hello and welcome to the zero to finals podcast. My name is Tom and this is the third part in the

series of questions on neurology. And you can find a written version of these questions in an anky-like format,

as well as a self-assessment format at members.0 tofinals.com, which is the zero to finals

site full of loads of resources for increasing your productivity when learning medicine.

It costs only £9.60 a month and you can cancel it at any time. But for now, let's get straight into these questions.

Question 84.

What are the five branches of the facial nerve?

Temporal, zygomatic,

buckle, marginal mandibular and cervical.

Question 85.

What structures does the facial nerve pass through on its way from the cerebellopontine angle to the face?

The temporal bone and the parotid gland.

Question 86. What is the parasympathetic supply of the facial nerve?

It supplies the submandibular and the sublingual salivary glands and the lacrimal gland, stimulating tear production.

Question 87. How can an upper and lower facial nerve palsy be differentiated on examination.

The forehead is spared in an upper motor neuron lesion,

but not spared in a lower motor neuron lesion.

Question 88.

What are the main causes of unilateral upper motor neuron facial nerve palsy?

Cerebrovascular accident or stroke and tumours.

Question 89.

What is the most common idiopathic cause for a lower motor neurone facial nerve palsy?

...