Facial nerve (dave's notes) Flashcards

1
Q

Give two mnemonics for the branches of the facial nerve

A

Two Zombies Buggered My Cat

To Zanzibar By Motor Car

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2
Q

List the branches of the facial nerve

A
Temporal 
Zygomatic
Buccal
Mandibular
Cervical
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3
Q

How does the facial nerve exit the skull?

A

Exits from the base of the skull through the stylomastoid faormen (near the posterior belly of digastric)

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4
Q

What is the first branch of the facial nerve? What is the course and destination of this branch?

A

The posterior auricular nerve which passes upwards near the ear to occipitofrontalis

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5
Q

Where does the muscular branch of the facial nerve divide? To supply what?

A

Divids to supply the posterior belly of digastric and stylohyoid, then approaches the parotid gland

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6
Q

What occurs to the facial nerve just prior to entering the parotid gland?

A

It divides into temporozygomatic and lower craniofacial nerves

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7
Q

What occurs to the facial nerve within the parotid gland?

A

Within the gland the temporozygomatic and craniofacial nerves divide and reunite (pea anserinus).

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8
Q

What is deep to the nerve in the gland?

A

The veins and the external carotid artery

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9
Q

Where to the temporal branches emerge? what is their course thereafter?

A

The temporal branches emerge from the upper border of the parotid, and cross the zygomatic arch up to frontalis

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10
Q

What does paralysis of the zygomatic branches result in?

A

Paralysis prevents blinking

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11
Q

What do the zygomatic branches supply?

A

Upper parts to frontalis, upper orbicularis oculi and lower parts to the lower orbicularis oculi and muscles below the orbit

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12
Q

What do the buccal branches supply?

A

Buccinator and the muscles fibres of the upper lip?

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13
Q

Where does the marginal mandibular nerve emerge? What does it supply?

A

Emerges from the lower border of the gland and supplies the muscles of the lower lip

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14
Q

What nerve is at risk when making incisions along the lower border of the jaw?

A

The marginal mandibular

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15
Q

What is the course and destination of the cervical branch?

A

The cervical branch passes vertically downwards supplying platysma

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