The Head

What is the main difference between the innervation of the facial nerve and the trigeminal nerve?

• The facial nerve is motor to the tongue, while the trigeminal nerve is motor to the face

• The facial nerve is sensory to the face, and the trigeminal nerve is motor to mastication

• The facial nerve is motor to the muscles of facial expression while the trigeminal is the sensory nerve of the face

• The facial nerve and trigeminal nerve are both purely sensory

Where would sensory impairment on the face occur with a lesion to the supraorbital nerve?

• Nose and upper lip

• Chin and lower jaw

• Area above the eyes; forehead

• Cheek and lateral nose

Where would sensory impairment on the face occur with a lesion to the inferior alveolar nerve?

• Area below the eyes

• Upper teeth and lip

• Front of the mandible

• Forehead and scalp

Where would sensory impairment on the face occur with a lesion to the buccal nerve?

• Nose and philtrum

• Cheek area

• Tongue and palate

• Eyelids and forehead

Where would sensory impairment on the face occur with a lesion to the maxillary nerve?

• Tongue and floor of mouth

• Area below the eyes

• Scalp and back of head

• Cheek and jawline

Where would sensory impairment on the face occur with a lesion to the frontal nerve?

• Cheek and upper lip

• Forehead and nose

• Chin and mental region

• Eyelid and side of the face

What arteries provide the main blood supply to the face?

• Internal carotid and lingual arteries

• Facial and transverse facial are the main blood supply to the face

• Superficial temporal and posterior auricular arteries

• Maxillary and ophthalmic arteries

What arteries also contribute to the blood supply to the face?

• Inferior thyroid and deep cervical arteries

• Supraorbital, infraorbital, and mental arteries

• Superior laryngeal and ascending pharyngeal arteries

• Internal thoracic and facial arteries

With a paralysis of the facial muscles around the mouth, what actions would be impaired?

• Blinking and winking

• Elevation and depression of the lips and angles of the mouth, and puckering of the lips

• Chewing and swallowing

• Protrusion of the tongue

Which structures do not fuse with a cleft lip?

• Lateral nasal prominence and zygomatic bone

• Medial nasal prominence and the maxilla

• Mandible and hyoid bone

• Hard palate and soft palate