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69 Cards in this Set
- Front
- Back
Paired Bones
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Zygomatic bone
Parietal Bone Temporal Bone Nasal Bone Maxillary |
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Unpaired Bones
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Mandible
Occipital bone Sphenoid Bone Frontal Bone Ethmoid |
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facial nerve is what cranial nerve
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7 (VII)
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trigeminal nerve is what cranial nerve
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5 (V)
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What two muscles make up occipitofrontalis?
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frontalis and occipitalis
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Where is the frontalis muscle located?
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above the eyebrows
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what does the frontalis muscle do?
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elevates the eyebrows
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where is the occipitalis portion of occipitofrontalis?
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back of the neck
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what does the occipitalis portion of occipitofrontalis do?
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wrinkles the nape of neck, few have voluntary control
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what are the three parts of orbicularis oculi?
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lacrimal
palepebral orbital |
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what is the function of the lacrimal part of orbicularis oculi?
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squeeze tears into nasolacrimal duct
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what is the function of the palpebral part of orbicularis oculi?
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blinks the eye
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where is the lacrimal part of orbicularis oculi located?
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on the median aspect of the lids
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where is the palpebral part of the orbicularis oculi located?
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on the eyelids proper
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where is the orbital portion of the orbicularis oculi located?
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on the outside edges of the eye
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what is the function of the orbital part of orbicularis oculi?
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closes the eyes tightly/squinting
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what is the name for the muscles that surrond the mouth in a circle versus the muscles that surrond the eye in a circle
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mouth - orbicularis oris
eye - orbicularis oculi |
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what does the orbicularis oris muscle do?
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-closes the mouth
-puckers the lips |
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which of the two orbicularis muscles has various subparts?
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orbicularis oculi, orbicularis oris is just one muscle
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what is the origin and insertion of buccinator?
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origin: pterygomandibular raphe
insertion: orbicularis oris |
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what is the function of buccinator?
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keeps food in the oral cavity
keeps food out of oral vestibule |
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what is the function of zygomaticus major?
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broad smile
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what are the origins and insertion of the zygomaticus major muscle?
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corner of the mouth to the zygoma bone
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Name the muscles of the mouth lateral to medial? (superior and not orbicularis)
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Zygomaticus
Levator anguli oris Levator labii superioris |
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Name the muscles of the mouth lateral to medial? (inferior and not orbicularis?)
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No Zygomaticus
Depressor anguli oris Depressor labii inferioris |
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What is the pathway of the facial nerve?
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Internal acoustic meatus --> three foramina in temporal bone --> stylomastoid foramen --> parotid gland --> final destinations
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Where do the motor branches of the facial nerve exit the skull?
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the stylomastoid foramen
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What are the five branches of the facial nerve?
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Temporal
Zygomatic Buccal Mandibular Cervical |
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What is the mneumonic for remembering the five branches of the facial nerves?
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To Zanzibar By Motor Car
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Where does the temporal branch of the facial nerve go (generally and specifically)?
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Generally - forehead area
Frontalis of occipitofrontalis |
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Where does the zygomatic branch of the facial nerve go?
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orbicularis oculi
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Where does the buccal branch of the facial nerve go?
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orbicularis oris and facial nerves of the side of the face
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Where does the mandibular branch of the facial nerve go?
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lower part of orbicularis oris
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What is another name for the mandibular branch of the facial nerve?
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marginal mandibular branch
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Where does the cervical branch of the facial nerve go?
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To innervate platysma
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Which is the largest of the cranial nerves?
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trigeminal nerve
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What are the functions of the trigeminal nerve (7)?
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(1) sensory innervation of the face
(2) sensory of the cranial dura (3) sensory of internal structures in oral cavity (4) sensory for internal structures of the nasal cavity (5) sensory for bony air sinuses (6) sensory for a portion of the pharynx (7) motor for muscles of mastication |
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What are the muscles of mastication? What innervates them?
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The muscles of mastication are masseter and temporalis. They are innervated by the Trigeminal nerve (5)
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What are the three divisions of the trigeminal nerve?
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(1)opthalmic
(2) maxillary (3) mandibular |
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What nerve comes from each division of the trigeminal nerve?
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Opthalmic - supraorbital
maxillar - infraorbital Mandibular - mental and auriculotemporal |
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What is the sensory innervation of the face?
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eyes, scalp, forehead and middle of nose - Opthalmic/Supraorbital
Eyelids and temporal region, top lip, cheeks - Maxillary/Infraorbital Chinstrap, lower lip - Mandibular/mental Anterior ear - great auricular anterior neck/lateral chin - transverse cervical |
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What does the auriculotemporal nerve innervate?
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front of ear to lateral temporal region
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Which of the trigeminal nerve divisions has two subnerves/branches that we study?
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Mandibular which has mental and auriculotemporal
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Does the cervical plexus provide sensory or motor innervation to the face?
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Sensory innervation
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What are the two nerves that innervate the face that come from the cervical plexus?
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(1) Transverse cervical nerve
(2) Great auricular nerve |
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What does transverse cervical innervate?
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(1) Anterior neck
(2) Lateral chin |
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What does great auricular nerve innervate?
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anterior ear
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What is the path of the facial artery?
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branches off external carotid --> go over/through submandibular salivary gland --> crosses mandible --> appears on face halfway from midline ---> goes to medial canthus of the eye --> branches
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what are the branches of the facial artery?
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Submental
Superior Labial Inferior Labial |
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What does the submental artery vascularize?
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Chin and submental region
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What are the four branches of the external carotid that we know of?
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Lingual
Facial Maxillar Superficial Temporal |
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What does the superior and inferior labial arteries vascularize?
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upper lip and lower lip
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Which of the labial arteries goes into the nostril and nasal cavity?
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superior labial
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Where does the transverse facial artery come from and where does it go?
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Transverse facial comes from superficial temporal and it goes superior to the parotid duct
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What is the supraorbital artery a branch of??
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The opthalamic artery
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What path does the opthalmic artery take?
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follows the nerves from the supraorbital nerve (VI)
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Which is the largest of the salivary glands?
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the parotid gland
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Where is the parotid gland located?
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anterior ear on lateral side of face
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where do the secretions of the parotid gland go?
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oral vestibule via partoid duct
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What is the path of the parotid duct?
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Exit parotid gland --> runs on side of buccinator --> pierces buccinator --> enters mouth opposite second molar tooth
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What is another name for the bucchal branch of the trigeminal nerve?
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Long bucchal nerve
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What is important to note about the bucchal nerve?
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(1) there are two bucchal nerves - one that is a branch of trigeminal and one that is a branch of facial
(2) The bucchal nerve of the facial runs lateral to the buccinator muscle |
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Which nerve provides motor innervation to the buccinator?
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Bucchal nerve of the facial nerve
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Which nerve in specific innervates the muscles of mastication?
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Mandibular division of the trigeminal nerve (3rd division)
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What is the biggest hole in the normal frontalis?
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infraorbital foramen
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What muscles attach to the mastoid process?
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Splenius capitus
Longissimus capitus Sternocleomastoid |
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What is Bell's Palsy?
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Paralysis of the facial nerve. patient is unable to close eyes - they dry up etc
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What is a mneumonic for the spinal nerves?
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OLd
OPrah's OCcupation: TROpical TRIps ABoard FAmous VESsels, GLamorous VAcations, ACCumulating HYPe |
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What are the cranial nerves?
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1- Old - Olfactory
2- Oprahs - Optic 3- Occupation - Oculomotor 4- TROpical - Trochclear 5- TRIps - Trigeminal 6- ABoard - Abducens 7- FAmous - Facial 8- VESsels - Vestibulocochlear nerve/Auditory nerve 9 - GLamorous - Glossopharnygeal 10 - Vacations - Vagus 11 - ACCumulating - Spinal Accessory/Accessory 12- HYPe - Hypoglossal |