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45 Cards in this Set
- Front
- Back
Blue lips (cyanosis) suggest?
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disease of heart, lungs or both
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Deep nasolabial grooves may reflect?
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Chronic diseases of the digestive tract
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What constitutes the inferior boundary of the oral cavity proper?
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Muscles of the oral floor & adjacent tongue together
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What forms the roof of the oral cavity?
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Hard palate-- anterior 2/3
Soft palate (velum)-- posterior 1/3 |
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What bones make up the palate? (2)
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Palatine process of maxilla
Horizontal plate of palatine bone |
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Suture between fused palatine processes of maxilla?
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Median palatine suture
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Suture between horizontal plate of palatine bone & palatine process of maxilla?
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Trasverse palatine suture
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Which arteries supply the palate? (3)
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1. Posterior septal branches
2. Greater palatine artery 3. Lesser palatine artery |
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Which nerves supply the palate? (3)
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V-2:
1. Nasopalatine nerve 2. Greater palatine nerve 3. Lesser palatine nerve |
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Which nerve supplies pink (palate lingual to incisors)?
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Pink = Nasalpalatine nerve
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What nerve innervates the blue area of the palate?
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Blue = Greater palatine nerve
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What nerve innervates the green portion in the posterior palate?
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Green = Lesser palatine
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What nerves innervate the yellow portion?
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Yellow = IO & PSA
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What nerves innervate the green/blue area buccal to the molars?
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Green/blue = Buccal nerve
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What nerve innervates light blue area labial to incisors?
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Light blue = IO & Superior labial branches
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What are the muscles of the soft palate (5)?
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1. Levator veli palatini
2. Palatopharyngeus 3. Palatoglossus 4. Musculus uvulae 5. Tensor veli palatini |
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All of the muscles of the soft palate are supplied by ________ nerve, EXCEPT tensor veli palatini is supplied by?
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Accessory via Vagus:
1. Levator veli palatini 2. Palatopharyngeus 3. Palatoglossus 4. Musculus uvulae V-3: 5. Tensor veli palatini |
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4 types of lingual papillae?
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1. Filliform
2. Fungiform 3. Circumvallate 4. Foliate |
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What are the EXTRINSIC muscles of the tongue? (4)
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1. Genioglossus
2. Hyoglossus 3. Styloglossus 4. Palatoglossus |
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Which muscle protracts & depresses tongue?
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Genioglossus
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Which muscle depresses tongue?
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Hyoglossus
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Which muscle retracts & elevates tongue?
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Styloglossus
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Which muscle narrows oropharyngeal isthmus, elevates tongue?
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Palatoglossus
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The extrinsic muscles of the tongue are all innervated by _____ nerve EXCEPT palatoglossus which is innervated by?
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Hypoglossal XII:
1. Genioglossus 2. Hyoglossus 3. Styloglossus Acessory via Vagus: 4. Palatoglossus |
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What are the intrinsic muscles of the tongue? (4)
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1. Superior longitudinal
2. Inferior longitudinal 3. Transverse 4. Vertical |
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The INTRINSIC muscles of the tongue are all innervated by what nerve?
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Hypoglossal (CN XII)
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What happens if there is unilateral lesion to the hypoglossal nerve?
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Tongue will deviate to SAME SIDE as lesion
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Which arteries supply the tongue? (5)
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1. External carotid
2. Lingual artery 3. Deep lingual artery 4. Sublingual artery 5. Dorsal lingual arteries |
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Taste of the anterior 2/3 of tongue comes from which nerve?
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Facial nerve (Chorda tympani)
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Taste of the posterior 1/3 of tongue is supplied by which nerve?
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Glossopharyngeal
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General sensation of posterior 1/3 of tongue is via which nerve?
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Glossopharyngeal
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General sensation of anterior 2/3 of tongue is via?
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Lingual nerve (CN V-3)
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The tip of tongue drains to which lymph nodes?
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Submental lymph nodes
(ipsilateral & contralateral) |
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The lateral sides of tongue drains to which lymph nodes?
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Submandibular lymph nodes
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The posterior 1/3 of tongue drains to which lymph nodes?
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Superior deep cervical lymph nodes
(ipsilateral & contralateral) |
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The midline of tongue drains to which lymph nodes?
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Contralateral Inferior deep cervical lymph nodes
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Epiglottic region of tongue & epiglottis receive both general & taste from which nerve?
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internal laryngeal branch of VAGUS nerve
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Floor of the mouth consists of what 4 muscles?
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1. Mylohyoid
2. Geniohyoid 3. Digastric 4. Stylohyoid |
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What 2 muscles of the floor of the mouth are innervated by V-3?
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1. Mylohyoid
2. Anterior belly of the digastric |
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What is the innervation of the GENIOHYOID?
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C-1
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What 2 muscles of the floor of the mouth are innervated by CN VII?
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1. Posterior belly of digastric
2. Stylohyoid |
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What nerves are present in the floor of the mouth? (3)
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1. Lingual nerve V-3
-Submandibular ganglion 2. Glossopharyngeal IX 3. Hypoglossal XII |
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What structures are superficial (lateral) to hyoglossus muscle in floor of the mouth? (4)
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1. Lingual nerve
2. Submandibular ganglion 3. Hypoglossal nerve 4. Submandibular duct |
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What structures are deep (medial) to hyoglossus in floor of the mouth? (3)
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1. Lingual artery & vein
2. Glossopharyngeal nerve 3. Stylohyoid ligament |
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What muscle is KEY to floor of oral cavity?
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Hyoglossus
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