WorksheetsThe Head
Total questions: 37
Worksheet time: 19mins
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
Which structures do not fuse with a cleft palate?
Nasal septum and mandibular condyle
Lateral palatine processes of the maxilla and the nasal septum
Frontal bone and nasal bones
Orbital floor and zygomatic arch
What muscles of the face could be affected by damage to the zygomatic branch of the facial nerve?
Masseter, inferior part of the orbicularis, depressor labii inferioris, frontalis, levator labii superioris, levator angi oris, and buccinator
Orbicularis oris and depressor labii inferioris
Zygomaticus major and minor, part of the orbicularis occuli, levator anguli oris, levator labii superioris, and the levator labii superioris alaque nasi
Frontalis and temporalis
What is the difference between the buccal nerve and the buccal branch of the facial nerve?
Buccal nerve is off the mandibular division of the trigeminal N. and is sensory to the cheek region of the face, but the buccal branch is off the facial N. and is motor to the buccinator muscle
Buccal nerve is motor to the buccinator muscle and the buccal branch is sensory to the cheek region
Buccal nerve innervates the teeth and is sensory to the mouth and buccal branch controls taste and is motor to the buccinator muscle
Both are branches of the facial nerve with overlapping functions
What sensory impairment occurs in the face with damage to the facial nerve?
Complete numbness of the forehead
There is no sensory impairment because facial is motor, but trigeminal is sensory to the face
Loss of pain and temperature in the chin
Impaired light touch in the maxillary region
What structures attach to the intraarticular disc of the TMJ?
Stylomandibular ligament and sphenomandibular ligament
Lateral pterygoid muscle, joint capsule, and superior and inferior laminae
Masseter and medial pterygoid muscles
Temporalis muscle and retrodiscal tissue
What structures would be damaged if the mandibular condyle were dislocated in a posterior direction?
Mandibular nerve and coronoid process
Maxillary sinus and pterygoid muscles
Posterior dislocation could damage the parotid gland, external auditory meatus, facial nerve trunk, auriculotemporal nerve, and superficial temporal blood vessels
Lingual nerve and stylohyoid ligament
What structures would be damaged if the mandibular condyle were dislocated in a medial direction?
Chorda tympani of VII and middle meningeal A.
Facial artery and vein
Temporalis tendon and coronoid notch
External carotid artery and TMJ capsule
What do all of the muscles of mastication have in common?
They originate from the hyoid bone
They insert on the maxilla
They are all innervated by the mandibular division of the trigeminal N.
They are all innervated by the facial nerve
What all muscles can close and protrude the lower jaw?
Temporalis and digastric muscles
Masseter and medial and lateral pterygoid muscles
Mylohyoid and geniohyoid
Buccinator and orbicularis oris
What muscles will generate lateral jaw movement to the right?
Right temporalis, left masseter, left medial pterygoid, and left lateral pterygoid
Right masseter, right temporalis, right lateral pterygoid, left medial pterygoid
Left temporalis and right digastric
Left masseter and right buccinator
What could be the sensory and motor effect of damage to the maxillary division of V?
There would be paralysis of the lower jaw and loss of sensation to the tongue
There would be no sensory involvement to the palate, lateral face, face below the eye, and upper teeth but no motor affect
Loss of motor to the soft palate
Complete loss of facial expression
What nerves of the mandibular division of V give off more motor nerves?
Lingual and buccal nerves
Motor fibers are in the inferior alveolar N, nerves to the medial and lateral pterygoids, masseteric nerve, and deep temporal nerve
Greater palatine and nasopalatine nerves
Auriculotemporal and mental nerves
Does the anterior or posterior division of the mandibular division of V give off more motor nerves?
Posterior division
Anterior division gives off more motor fibers
Both divisions equally give off motor nerves
Neither division has motor function
Which nerve of the mandibular division contains both motor and sensory nerves?
Lingual nerve
Inferior alveolar nerve and the auriculotemporal nerve
Buccal nerve
Maxillary nerve
Blood supply to which structures would be reduced with blockage of the 2nd part of the maxillary artery?
Blood to the masseter, medial and lateral pterygoids, temporalis muscles, cheek region, upper teeth, palate, and area to the face directly below the eye would be reduced
Blood to the tongue, masseter, buccinator, lower teeth, palate, area to the face directly above the eye, and pharynx would be reduced
Blood to the upper teeth, palate and the area below the eye would be reduced
Blood to the parotid gland and ear would be reduced
Blood supply to which structures would be reduced with blockage to the 3rd part of the maxillary artery?
Blood to the scalp and face
Blood to the temporalis and masseter
Blood to the upper teeth, palate and the area below the eye would be reduced
Blood to the mandible and TMJ
What are the nerve innervations and blood supply to the upper teeth?
Lingual nerve and facial artery
Posterior, middle, and anterior alveolar nerves and arteries
Nasopalatine nerve and inferior alveolar artery
Mylohyoid nerve and buccal artery
What are the nerve innervations and blood supply to the lower teeth?
Inferior alveolar nerves and arteries
Facial nerve and vein
Glossopharyngeal nerve and palatine arteries
Masseteric nerve and submental artery
How do the nerve innervations and blood supply to the hard palate differ from that of the soft palate?
The hard palate gets both its nerve and blood supply from the hypoglossal N. and facial A., while the soft palate gets innervation and blood supply from the maxillary N. and A.
Soft palate gets innervation and blood supply from the lesser palatine N. and A. but the hard palate gets innervation from the greater palatine and nasopalatine N. and blood supply from the greater palatine and sphenopalatine arteries
Both are innervated by the trigeminal nerve and supplied by the maxillary artery
Soft palate receives innervation from the vagus nerve, while the hard palate gets its innervation from the lesser palatine and facial N. and blood supply from the lesser palatine and greater palatine A.
Is it possible to lose motor control of the tongue but maintain taste and sensation? How?
No, because all tongue functions share the same nerve
Yes, because motor to the tongue is by the hypoglossal N. and general sensory by the lingual and glossopharyngeal nerves while taste is by the chorda tympani of the facial N. and glossopharyngeal N.
Yes, all functions are controlled by trigeminal nerve (motor and sensory)
No, all tongue functions are lost together
Will damage to the facial nerve affect the tongue? How?
Yes by affecting the chorda tympani of the VII which is taste to the anterior 2/3 to the tongue
No, facial nerve has no tongue function
Yes, it innervates tongue muscles
No, tongue taste is controlled only by glossopharyngeal
Is it possible to lose general sensation to the tongue but not taste or motor function? How?
Yes, damage to the lingual nerve or to the mandibular division of V will affect general sensation but not taste as that is generated by the chorda tympani of VII. Motor will not be affected because that is XII
No, all functions are lost together
Yes, because glossopharyngeal nerve controls all functions
No, taste and sensation are carried together
What is common to the very back of the tongue and the pharyngeal constrictor muscles?
They are both innervated by the glossopharyngeal nerve
They are both taste-related
The very back or root of the tongue is innervated by the vagus nerve and this is the same nerve that innervates the pharyngeal constrictor muscles of the pharynx
They share the same arterial supply
Inability to move the eye laterally indicates damage to which nerve?
Trochlear N.
Abducens N.
Oculomotor N.
Facial N.
Inability to move the eye straight up and down, as well as medially, indicates damage to which nerve?
Trochlear N.
Optic N.
Oculomotor N.
Facial N.
If a person has a hearing problem, which part of the ear might be involved?
Inner ear only
The external, middle or inner ear
Only the middle ear
Tympanic membrane, external and inner ear
If a person has a balance problem, which part of the ear might be involved?
Outer ear
Tympanic cavity
The inner ear
External auditory canal
