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Boards Prep > Head and Neck Anatomy: Mental Dental > Flashcards

Head and Neck Anatomy: Mental Dental Flashcards

(68 cards)

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1
Q

Origin: zygomatic arch
Insertion: lateral surface of ramus and angle
Action: elevates mand, superficial fibers protrude, deep fibers retract, moves mand toward same side

A

Masseter

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2
Q

Origin: temporal fossa
Insertion: coronoid process
Action: elevates mand: post fibers retract mand

A

Temporalis

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3
Q

What nerve innervates muscle of mastication?

A

V3

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4
Q

Origin: max tuberostiy (superficial) and medial surface of pterygoid plate (deep)
Insertion: Medial surface of ramus and angle
Action: elevates and protrudes mand, move mand toward opposite side

A

Medial pterygoid

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5
Q

Origin: inframtemporal crest (superior crest) and lateral surface of lateral pterygoid plate (inferior head)
Insertion: articular disc (superior head) and pterygoid fovea (inferior head)
Action: depresses and protrudes mand, moves mand toward opposite side

A

Lateral pterygoid

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6
Q

___ muslces: formed from paraxial mesoderm that eventually becomes occipital somites

A

Tongue muscles

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7
Q

What are the 4 extrinsic muscles of the tongue?

A

Hyoglossus
Genioglossus
Palatoglossus
Styloglossus
Hi my tongue is a GPS

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8
Q

Origin: Hyoid bone
INsertion: Tongue
Action: Depresses tongue
Innvervation: 12

A

Hyoglossus

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9
Q

Origin: Genial tubercules
INsertion: Tongue
Action: Protrudes tongue
Innvervation: 12

A

Genioglossus

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10
Q

Origin: Styloid process of temporal bone
INsertion: Tongue
Action: Retracts tongue
Innvervation: 12

A

Styloglossus

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11
Q

Origin: Palatine aponeurosis
INsertion: Tongue
Action: Elevates back part of tongue
Innvervation: 10

A

Palatoglossus

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12
Q

What extrinsic muscle of the tongue is innervated by a nerve other than hypoglossal? What nerve?

A

Palatoglossus: Vagus nerve

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13
Q

Origin: Palatine aponeurosis
Insertion:Upper border of thyroid cartilage and pharyngeal wall
Action: Pulls pharynx and larynx upward
Innervation: Vagus

A

Palatopharyngeus

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14
Q

Origin: Palatine aponeurosis
Insertion: uvula
Action: SHortens and broadens the uvula to help close nasopharynx during swallowing
Innervation: X

A

Musculus uvulae

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15
Q

Origin: Scaphoid fossa and cartilagenous part of auditory tube
Insertion: Palatine aponeurosis
Action: Tenses soft palate opens auditory tube
- Its tendon hooks around the pterygoid hamulus and forms the palatine aponeurosis across the soft palate
Innervation: V3

A

Tensor veli palatini

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16
Q

Origin: Petrous part of temporal bone and cartilaginous part of auditory tube
Insertion: Palatine aponeurosis
Action: Elevates the soft palate to lcose off nasopharynx during swallowing
Innervation: X

A

Levator veli palatini

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17
Q

Origin: Cartilagionous part of auditory tube
Insertion: Upper border of thyroid cartilage and pharyngeal wall
Action: Also helps to equalize air pressure
Innervation: X

A

Salpingopharyngeus

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18
Q

What soft palate muscle is innervated by V3?

A

Tensor veli palatini

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19
Q

SPecial visceral sensory for smell:

A

CN 1 : olfactory

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20
Q

SPecial somatic sensory for vision

A

CN 2 Optic nerve

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21
Q

Are men or women better at shade matching?

A

Women due to more cone cells

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22
Q

Does vision cross over or is it ipsilateral?

A

Crosses over: opposite side of brain

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23
Q

Somatic motor to extraocular muscles
PSNS to smooth muscle associated with pupil constriction

A

Oculomotor CN 3

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24
Q

Somatic motor to superior oblique
Only CN that arises from the dorsal side of brainstem

A

Trochlar nerve CN 4

SO4
LR6

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25
Sensory info from orofacial region Somatic motor to muscles of mastication
Trigeminal CN V
26
___ division of CN V Frontal nerve Lacrimal nerve Nasociliary nerve
Ophthalmic V1
27
___ division of CN V Sphenopalatine nerve Pharyngeal nerve Greater and lesser palatine nerves PSA Zygomatic nerve Infraorbital
Maxillary V2
28
___ division of CN V Auriculotemporal Long buccal nerve lingual nerve IA Medial pterygoid nerve
Mand V3
29
Somatic motor to lateral rectus
Abducens 6 So4 LR6
30
Sensory info from ear tongue and palate Somatic motor to muscles of fascial expression Chorda tympani to submand and sublingual glands and greater petrosal nerve to accessory glands (PSNS)
Facial VII
31
Bell's palsy affects what CN?
CN VII
32
Special somatic sensory and balance Vestibular branch detects balance, cochlea detects hearing
CN VIII Vestibulocochlear
33
Somatic and vesceral sensory form posterior 1/3 of tongue via lingual branch Sensory end of gag reflex Somatic motor to stylopharyngeus muscle Hering's nerve: baroreceptors and chemoreceptors Lesser petrosal nerve to partoid gland
Glossopharyngeal Cn IX
34
Sensory info from laryngeal mucosa below vocal cords Visceral sensory and motor from and to heart lungs and GI tract Somatic motor to most pharynx, larynx, and soft palate muscles Motor end of gag reflex Baroreceptors and chemoreceptors
Vagus CN X
35
Somatic motor to SCM and trapezius Spinal root origintates from C1-C5 and ascends into skull via foramen magnum and exits jugular foramen
Spinal Accessory Nerve CN XI
36
Somatic motor to SCM and trapezius Spinal root origintates from C1-C5 and ascends into skull via foramen magnum and exits jugular foramen
Spinal Accessory Nerve CN XI
37
Somatic motor to tongue muscles except palatoglossus
Hypoglossal nerve CN XII
38
Taste and smell is considered what kind of fibers? General/ special, somatic/visceral, efferent/ afferent?
Special visceral afferent
39
What division of Trigeminal supplies somatic motor?
V3
40
Stensen's duct is associalted with _____
Parotid gland
41
Parotid more serous or mucous?
Serous
42
What CN stimulates parotid gland to secrete saliva?
CN IX
43
The following are components of _____: Branches of CN VII (TZBMC) Retromandibular vein Termination of external carotid artery Auriculotemporal nerve
Parotid gland
44
Wharton's duct is assc with ____ gland
Submand gland
45
Submand serous or mucous?
Mixed
46
Which salivary gland is most of salivia coming form?
Submand
47
Which salivary gland is most likely to get sialoliths?
Sub mand
48
What nerve innervates submand gland?
CN VII
49
Bartholin's duct is assco with ___ gland
Sublingual gland
50
What nerve innervates sublingual gland?
CN VII
51
Sublingual serous or mucous?
Mucouse
52
The ________ nerve is a branch of the glossopharyngeal nerve (CN IX) that delivers preganglionic parasympathetic nerve fibers along the visceral motor pathway.
lesser petrosal
53
The _______ nerve is a part of the visceral motor pathway for lacrimal, nasal, palatine and pharyngeal glands. It is not involved in parasympathetic innervation for the parotid gland.
greater petrosal
54
The ________ nerve delivers postganglionic parasympathetic nerve fibers to the lacrimal gland.
zygomatic
55
Parasympathetic innervation for the parotid gland begins at the inferior salivary nucleus and runs along the lesser petrosal nerve all the way to its synapse at the otic ganglion. The postsynaptic parasympathetic nerve fibers “hitch-hike” along the ________ to the parotid gland.
auriculotemporal nerve (V3)
56
What type of collagen is the articular disc made of?
Type 1 cartilage
57
The artticulating surfaces of the TMJ are made of _____
Fibrocartilage
58
What type of collagen is the articular cartilage made of?
Type 2 collagen
59
____ ligament Outer oblique portion limits mouth opening Inner forizontal portion prevents the disc and condyle form dislocating posteriorly
Lateral ligament
60
What two ligaments in TMj are vascularized and innervated?
Capsular and collateral
61
Extends from styloid process to angle of mand Thickening of fascia of parotid gland Limits excessive protrusion of mand
Stylomandibular ligament
62
Extends from spine of sphenoid bone to lingula of mand Embryonic remnant of Meckel's cartilage (Pharyngeal arch #1) Helps support mand but has no limiting effects on its movement
Sphenomandibular ligament
63
Embryonic remnant of Reichert's cartilage (Pharyngeal arch #2) Calcified in Eagle syndrome
Stylohyoid ligament
64
What innervates TMJ?
Auriculotemporal (V3)
65
What gives blood supply to TMJ?
Superficial temporal and max arteries of external carotid artery
66
___ portion of retrodiscal tissue Composed of elastic fibers Prevents the disc from dislocating anteriorly
Superior retrodiscal lamina
67
___ portion of retrodiscal tissue Composed of collagen fibers Prevents the disc from excessively rotating over condyle
Inferior retrodiscal lamina
68
___ portion of retrodiscal tissue Consists of loose areolar CT containing blood vessels and nerves
Intermediate Retrodiscal tissue

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