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72 Cards in this Set
- Front
- Back
The lingula of the mandible is important landmark for what?
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inferior alveolar nerve block
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The oral region contains what?
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teeth
gingivae (teeth) tongue palate tonsils |
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What are the two parts of the oral cavity?
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vestibule
oral cavity proper |
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What is the vestibule part of the oral cavity?
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space between lips/cheek & teeth/gums
communicates with exterior via mouth |
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What is the oral cavity proper enclosed by?
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upper/lower dental arches
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What is the anterior boundary of the oral cavity proper?
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teeth/gums
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What is the lateral boundary of the oral cavity proper?
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teeth/gums
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What is the roof of the oral cavity proper?
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palate
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What is the floor of the oral cavity proper?
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mylohyoid and geniohyoid muscles
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What is the posterior boundary of the oral cavity proper?
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opens to oropharynx
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What muscles make up the muscular core of the lips?
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orbicularis oris (+ other mm of facial expression)
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What is the motor innervation (SE) of the muscular core of the lips?
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CN VII
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What is the muscular core of the lips covered in?
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skin externally
mucosa internally |
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What is the arterial supply of the lips?
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superior/inferior labial arteries (from facial artery)
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t/f
Calcium ion bonds directly to tropomyosin molecules. |
false, troponin
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What is the lymphatic drainage of the lips?
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most to submandibular nodes
medial lower lip to submental nodes |
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What is the SA innervation of the lips?
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upper lip: superior labial branches of infraorbital nerve (CN V2)
lower lip: inferior labial branches of mental nerve (CN V3) |
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What is the muscle of the cheeks?
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buccinator m.
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What is the innervation of buccinator m.?
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SE via CN VII
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What are the lateral walls of the oral cavity?
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the cheeks
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What is the arterial supply of the cheeks?
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buccal branches of maxillary artery
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What is the venous drainage of the cheeks?
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facial vein and some to cavernous sinus
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What is the pattern of lymph drainage of the cheeks?
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to buccal nodes and then to submandibular nodes
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What is the SA innervation of the cheeks?
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mostly buccal nerve (CN V3)
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What type of tissue are the gums?
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mucosal covered fibrous tissue
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What is the SA innervation of the upper row of teeth/gingivae?
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CN V2
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What is the SA innervation of the upper row of teeth/gingivae?
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CN V3
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What is alveolus?
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socket for tooth roots
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How many deciduous teeth are there?
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20
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How many permanent teeth are there?
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32
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The upper row of teeth receive blood supply from what arteries?
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superior alveolar arteries (3rd part of maxillary artery)
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What nerve provides SA innervation of the upper row of teeth?
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superior alveolar nerves (CN V2)
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The lower row of teeth receive blood supply from what arteries?
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inferior alveolar arteries (1st part of maxillary artery)
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What nerve provides SA innervation of the lower row of teeth?
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inferior alveolar nerves (CN V3)
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What are the functions of salivary glands?
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secrete saliva
moisten food lubricate food initiate starch digestion assists taste, prevention of tooth decay |
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Where is the parotid gland located?
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external to ramus of mandible
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What is the path of VE innervation to the parotid gland?
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via CN IX (lesser petrosal nerve) to otic ganglion via auriculotemporal nerve to gland
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Where does the parotid duct open?
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opens opposite 2nd molar
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Where is the submandibular gland located?
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along body of mandible and wraps around body of mandible
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What is the path of VE innervation to the submandibular gland?
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via chorda tympani (CN VII) to lingual nerve (CN V3) to submandibular ganglion which sends postganglionic fibers to the gland
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Where does the submandibular duct open?
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open at the sublingual caruncle
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What is the relationship of the submandibular duct to the lingual nerve?
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spirals around/crosses the lingual nerve
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Where is the sublingual gland located?
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deep to mucosa
floor of oral cavity lateral to tongue |
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Where do the sublingual ducts open?
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the sublingual gland has several ducts which open into the oral cavity lateral to tongue
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What is the pathway of VE innervation of sublingual gland?
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via chorda tympani (fron CN VII) to lingual nerve to submandibular ganglion to gland via postganglionic parasympathetics on lingual nerve
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What are the functions of the tongue?
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taste
speech manipulate food aid in swallowing |
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Where is the anterior 2/3 of the tongue located?
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in oral cavity
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Where is the posterior 1/3 of the tongue located?
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in oropharynx
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What part of the tongue is protrusable?
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anterior 2/3
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What separates the posterior 1/3 of the tongue from the epiglottis?
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valleculae
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The valleculae are important landmarks for what?
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intubation
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What is the motor (SE) innervation of the tongue?
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CN XII (except palatoglossus which is CN X)
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What is the sensory (SA) innervation of the anterior 2/3 of the tongue?
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lingual nerve (CN V3)
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What is the sensory (SA) innervation of the posterior 1/3 of the tongue?
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CN IX
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What is the taste (VA) innervation of the anterior 2/3 of the tongue?
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CNVII via chorda tympani via lingual
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What is the taste (VA) innervation of the posterior 1/3 of the tongue?
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CN IX (CN X carries some taste from near epiglottis)
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What nerve innervates the intrinsic muscles of the tongue?
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CN XII
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What is the action of the intrinsic tongue movements?
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fine movements
shape changes |
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What are the actions of the extrinsic muscles of the tongue?
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anchor tongue to hyoid
position control (protrusion/retraction, elevation/depression) |
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What is the motor innervation to the extrinsic muscles of the tongue?
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CN XII
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The genioglossus muscle is superior to what muscles?
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geniohyoid
mylohyoid |
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What is the relationship of the lingual artery and CN XII to hyoglossus muscle?
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lingual artery is deep to hyoglossus
CNXII is superficial to hypoglossus |
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What nerve provides motor innervation to palatoglossus?
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CN X
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What is the arterial supply of the tongue?
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lingual artery
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Lymph from the root of the tongue drains where?
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to deep cervical nodes
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Lymph from body of tongue drains where?
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deep cervical nods
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Lymph from apex of tongue drains where?
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submental nodes
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Lymph from lateral tongue drains where?
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submandibular nodes
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What veins are used to administer sublingual drugs?
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deep lingual veins because they are visible deep to mucosa
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The pharyngeal tonsils drain what area?
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auditory tube
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The palatine tonsils drain what area?
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arches, vasculature
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The lingual tonsils drain what area?
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root of tongue
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