Oral Cavity & Pharynx Flashcards

1
Q

If “tensor” is in the name of the nerve, it is a branch of CN V3, unless ________, _____, or _______ are also in the name.

A

palato, palati, glossus

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2
Q

The word palato in the name of a nerve without “glossus” means that the innervation is from _____.

A

CN X

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3
Q

CN VII is an _____ derivative and has ______ function

A

arch 2, sensory and motor

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4
Q

CN IX is an _____ derivative

A

arch 3

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5
Q

CN XII is a derivative of _______ and has _____ function

A

occipital somites, motor

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6
Q

the area enclosed by the upper and lower dental arches and opening posteriorly into the oropharynx is called ________

A

oral cavity proper

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7
Q

_______ is covered in stratified squamous epithelium and overlies the lamina propria (loose connective tissue)

A

oral mucosa

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8
Q

The ________ is a dense connective tissue layer deep to lamina propria and anchored to the bone by periosteum

A

oral submucosa

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9
Q

The 3 types of oral mucosa, their makeup, and their location are:

A

masticatory —> keritinized/parakeritinized, gingiva and hard palate

Lining —> nonkeritinized; lips, cheek, soft palate, ventral tongue

Specialized —> dorsal tongue, papillae and taste buds

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10
Q

The core of orbicularis oris houses this structure:

A

VN VII

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11
Q

The ______ is the junction between keratinized and non keratinized tissue in the bottom lip

A

vermillion border

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12
Q

________ is often due to the cold, disease, or a drug reaction and restricts blood flow.

A

peripheral cyanosis

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13
Q

Blood supply to the lips:

A

superior and inferior labial arteries from facial artery

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14
Q

A patient presents with a lesion on his medial lower lip which appears cancerous. Which lymph nodes are the main concern for metastasis?

A

submental nodes

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15
Q

All areas of lips except median lower lip drain to the

A

submental nodes

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16
Q

Blood supply to the cheeks is via _________ and ________

A

buccal branches of maxillary artery, facial artery

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17
Q

venous drainage of the cheeks is via ______ and ________ to the cavernous sinus

A

facial vein, pterygoid plexus

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18
Q

lymph drainage of cheeks is via ______ nodes to the ________

A

buccal nodes, submandibular nodes

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19
Q

The blood supply of the upper teeth are these 3 arteries:

A

anterior, middle, and posterior superior alveolar (via maxillary artery)

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20
Q

The upper and lower teeth are ______ derivatives

A

arch 1

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21
Q

Sensory innervation for upper teeth is ____ via ________

A

somatic afferent, superior alveolar nerves (CN V2)

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22
Q

The arterial supply of the lower teeth is provided by _________

A

inferior alveolar arteries (via maxillary artery)

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23
Q

Sensory innervation of lower teeth is ___ and is provided by _______ via ______

A

SA, inferior alveolar nerves, CN V3

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24
Q

Teeth are all anchored to the alveolar bone by ________

A

periodontal ligament

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25
Q

Enamel is secreted by _______, while dentin is secreted by __________, and cementum is secreted by _________.

A

ameloblasts, odontoblasts, cementoblasts

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26
Q

gums of bottom row of first 5 teeth innervated by ___________ nerve

A

mental branch of inferior alveolar

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27
Q

gums of bottom back 3 teeth innervated by

A

buccal branch of inferior alveolar nerve

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28
Q

Bottom first 3.5 teeth innervated by

A

incisive branch of inferior alveolar nerve

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29
Q

Bottom back 4.5 teeth innervated by

A

dental branches of inferior alveolar nerve

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30
Q

lower jaw entirely innervated by this cranial nerve

A

CN V3

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31
Q

upper mouth entirely innervated by this cranial nerve

A

CN V2

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32
Q

The _____ nerve and the _______ artery exit from the incisive canal in the very front of the hard palate

A

nasopalatine (CN V2), sphenopalatine

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33
Q

The top first 3 teeth are innervated by the ________ nerve, the middle 2.5 teeth are innervated by the ______ nerve, and the back 2.5 teeth are innervated by the _______ nerve.

A

anterior superior alveolar, middle superior alveolar, posterior superior alveolar

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34
Q

The hard palate is innervated by the _______ and the _______ nerves

A

nasopalatine, greater palatine

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35
Q

The soft palate is innervated by the ________, which is ___

A

lesser palatine nerve, somatic afferent

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36
Q

The blood supply of the hard palate is made up of the _______ and the _______ arteries which stem from the _______ artery.

A

sphenopalatine, greater palatine, maxillary

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37
Q

The blood supply of the soft palate is made up of the ________ from the ________, and the __________ from the _________.

A

lesser palatine artery, maxillary artery, ascending palatine artery, facial artery

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38
Q

Lymph flow from the hard and soft palate flows to the ______

A

superior deep cervical nodes

39
Q

_________ muscle anchors at the scaphoid fossa and the cartilage of the pharyngotympanic tube and attaches at the soft palate

A

Tensor veli palatini

40
Q

The innervation of the tensor veli palatini is the ________ nerve

A

mandibular nerve (CN V3)

41
Q

The __________ muscle anchors at the cartilage of the pharyngotympanic tube and the petrous portion of the temporal bone and attaches to the soft palate. It is innervated by the ______ nerve.

A

levator veli palatini, vagus CN X

42
Q

The _________ muscle is innervated by CN X and protects the nasopharynx during swallowing

A

musculus uvulae

43
Q

The submandibular gland wraps around the _________ and empties into the submandibular duct which runs over the top of the __________ and empties into the ____________

A

mylohyoid muscle, lingual nerve, sublingual caruncle

44
Q

The sublingual gland is deep to the __________ and empties via multiple direct ducts to ____________. It’s secretions are all from ________ glands.

A

mucosa in floor of mouth, sublingual caruncle, mucus

45
Q

The submandibular and sublingual glands are supplied by ___________ innervation.

A

parasympathetic

46
Q

Preganglionic parasympathetic innervation to submandibular and sublingual glands is provided from _____ via ________ to _______ nerve to synapse on ____________.

A

CN VII, chorda tympani, lingual nerve, submandibular ganglion

47
Q

Postganglionic innervation to the submandibular and lingual glands is only direct for the __________ gland and either via hitchhiking on lingual nerve or via direct branches to _______ gland.

A

submandibular, sublingual

48
Q

The foramen cecum in the posterior 1/3 of the tongue is a remnant of the ________

A

thyroglossal duct

49
Q

Posterior 1/3 of tongue is separated from epiglottis by __________ and is covered by the _________.

A

valleculae, lingual tonsil

50
Q

The dorsal surface of the anterior 2/3 of the tongue is __________ epithelium, while the ventral surface is ___________ epithelium.

A

keratinized, non-keratinized

51
Q

The whole surface of the tongue both dorsally and ventrally is made up of __________ epithelium. The dorsal side also has specialized mucosa called _______. _________ are specialized epithelium.

A

stratified squamous epithelium, papillae, taste buds

52
Q

___________ glands produce secretions which clear the clefts of the papillae of the tongue, and enhance taste.

A

lingual salivary (Von Ebner’s) glands

53
Q

taste to anterior 2/3 of tongue innervated via ______ via ________ to ____ and these taste buds are arch __ derivatives. These are ___ fibers

A

lingual nerve, chorda tympani, CN VII, 2, VA

54
Q

somatic sensation to anterior 2/3 tongue innervated via _______ to ____ and are arch __ derivatives. They are ______ fibers

A

lingual nerve, CN V3, arch 2, SA

55
Q

taste and somatic sensation to posterior 1/3 of tongue innervated by ____.
Most taste found in ____________.
Area is arch __ derivative.

A

CN IX, circumvallate papillae, arch 3

56
Q

Portion of posterioromedial tongue and valleculae have scattered somatic sensory and taste via ___. These are arch __ derivatives.

A

CN X, arch 4

57
Q

Palatoglossus is an _____ muscle of the tongue and is innervated by ____.

A

extrinsic, CN X

58
Q

Syloglossus is a _______ muscle of the tongue and is innervated by ____

A

extrinsic, CN XII

59
Q

Genioglossus is a _______ muscle of the tongue innervated by ____ and acts to _______, _______, and _______ the tongue.

A

extrinsic, CN XII, protrude, depress, wag

60
Q

The geniohyoid is a ______ muscle of the tongue innervated by ________ and acts to ________

A

extrinsic, nerve to geniohyoid (C1 via CN XII), shorten floor of mouth (aids in tongue protrusion)

61
Q

The Mylohyoid is a ______ muscle of the tongue which stretches from the mylohyoid line of mandible to the _____ and ___________. It is innervated via _________ and acts to elevate the ________, ______ and _________ during swallowing.

A

extrinsic, hyoid, midline mylohyoid raphe, nerve to mylohyoid (CN V3), hyoid, floor of mouth, tongue

62
Q

The _________ muscle is a landmark which separates the lingual artery (deep) from the hypoglossal nerve (superficial)

A

hyoglossus

63
Q

The ______ artery supplies the tongue, while the ______ vein drains it.

A

lingual artery, lingual vein

64
Q

The __________ absorb sublingual drugs

A

deep lingual veins

65
Q

The lymphatic drainage to the root and body of the tongue are the _______ and ______ nodes.
The apex of tongue is drained by _______ nodes, and the lateral tongue is drained by _________ nodes.

A

deep cervical, jugulodigastic, submental, submandibular

66
Q

The pharynx is the superiormost portion of the ___________.
It is within the visceral portion of the _______ fascia.
It is posterior to the _____ cavity, _____ cavity, and the ______.

A

alimentary canal, pretracheal, nasal, oral, larynx

67
Q

The nasopharynx opens into the nasal cavity via the ______.

A

choanae

68
Q

The 3 structures with mucosa within the nasopharynx are the _____, ______, and the _______.

A

torus tubarius, salpingopharyngeal fold, pharyngeal tonsils (adenoids)

69
Q

The 3 structures without mucosa in the nasopharynx are the _____, _______, and the ___________.

A

auditory tube, pharyngotympanic tube, salpingopharyngeus muscle

70
Q

salpingopharyngeus muscle found in the _________ is innervated by ______ and acts to _______ when swallowing.

A

CN X, elevate/widen pharynx

71
Q

The 4 structures with mucosa in the oropharynx are the _______, _________, _______, and the ________ of the tongue covered in lingual tonsils.

A

palatoglossal fold/arch, palatopharyngeal fold/arch, palatine tonsil “tonsils”, root of tongue

72
Q

The 2 structures without mucosa in the oropharynx are the _________ and the _________.

A

palatoglossus muscle, palatopharyngeus muscle

73
Q

The 2 structures with mucosa in the laryngopharynx are the ______ and the ________.
When debris fall into the _________, SA innervation via CN X initiates a throat clearing response.

A

piriform recesses, laryngeal cleft, piriform recesses

74
Q

The structures in the larngopharynx without mucosa are the __________ of the larynx.

A

muscles and skeleton of larynx

75
Q

The arterial vasculature to the pharynx are tonsillar branches from the following 4 arteries:

A

facial artery, ascending pharyngeal artery, lesser palatine artery, lingual artery

76
Q

Venous drainage from the pharynx goes to _________.

laryngopharynx can also drain to ________ vein.

A

pterygoid venus plexus, internal jugular vein

77
Q

The ________ is a hemorrhage concern during tonsillectomy (removal of palatine tonsil)

A

tonsillar bed/fossa

78
Q

The lymph drainage of the pharynx is to the ______ nodes, ________ nodes, and ___________ nodes.
When _______ nodes swell, usually a sign of tonsillitis.

A

submandibular nodes, retropharyngeal nodes, deep cervical nodes, jugulodigastric (“tonsillar”) nodes

79
Q

Soft palate and nasopharynx sensory innervation is by ____.
lateral nasopharynx and posterior tongue sensory innervation by ____.
Oro and laryngopharynx sensory innervation by ____.

A

CN V2, CN IX, CN X

80
Q

Motor (SE) innervation to pharynx by ___.

A

CN X

81
Q

The superior cervical ganglion contains the fused ganglia of ________ of the sympathetic trunk.

A

C1-C4

82
Q

The accessory nerve enters the skull via the _______.

A

jugular foramen

83
Q

The hypoglossal nerve exits the skull via ________ between the ______ and ________.

A

hypoglossal canal, vagus, sympathetic trunk

84
Q

The glossopharyngeal nerve crosses the _________ muscle in dissection.

A

stylopharyngeus muscle

85
Q

The glossopharyngeal nerve exits the skull via the ________ and is sensory (VA tactile) of ________, sensory (SA & VA) of ___________, and motor (SE) to _________ muscle.
It is also VA innervation to ________ and VE (parasympathetic) to _______.

A

jugular foramen, pharynx, posterior 1/3 of tongue, stylopharyngeus muscle, carotid body/sinus, otic ganglion

86
Q

CN X exits the skull via _______ and is sensory (SA) to _________ and sensory (VA) to some portion of _______.

It is also motor innervation (SE) to all pharyngeal muscles except ________, and __________.

A

jugular foramen, laryngopharynx, taste buds, stylopharyngeus (CN IX), levator veli palatini (CN V3)

87
Q

The ____________ muscle forms the sphincter between pharynx and esophagus.
It comes from the ______ and _______ cartilages and attaches to ___________.

A

inferior constrictor muscle, thyroid, cricoid, pharyngeal raphe

88
Q

The gag reflex afferent portion is via _______ and the efferent portion is by ______.
This reflex is carried out in the ________.

A

CN IX, CN X, oropharynx

89
Q

Phase 1 of swallowing involves _____ in tongue retraction, ______ and _____ in closing nasopharynx with soft palate, and ______ in tensing the floor of oral cavity.

A

CN XII, CN V3, CN X, CN V3

90
Q

Phase 2 of swallowing involves _____ and ______ in continued closure of nasopharynx with soft palate.
It also involves palatopharyngeus (____), salpingopharyngeus (_____), and stylopharyngeus (_____) in widening and shortening pharynx; and it involves suprahyoid muscles innervated by ______ and ______ to elevate larynx to protect the airway

A

CN X, CN V3, CN X, CN X, CN IX, CN V3, CN VII

91
Q

Phase 3 of swallowing involves _____________ mediated by CN X. It also involves peristalsis in the _________ innervated by autonomics.

A

pharyngeal constrictor peristalsis, esophagus

92
Q

Parotid salivary gland innervated by preganglionic parasympathetics (VE) from ________ via __________ to ________ ganglion.

Postganglionic parasympathetics hitchhike on ___________ nerve (CN V3) to parotid gland.

A

CN IX, lesser petrosal nerve, otic ganglion, auriculotemporal nerve

93
Q

The parotid gland is made up of _______ cells and has a characteristic feature of ________ cells.

A

serous, adipose