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Anatomy Exam III > Deep Face I > Flashcards

Deep Face I Flashcards

1
Q

temporal fossa

A

space found superior to the zygomatic arch

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2
Q

infratemporal fossa

A

space found inferior to the zygomatic arch

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3
Q

boundaries of the infratemporal fossa

A

Lateral=Ramus of Mandible Anterior=Maxilla Medial=Lateral Pterygoid Plate Roof=Sphenoid Posterior = Tympanic plate & mastoid and styloid processes Inferior = Angle of Mandible

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4
Q

Contents of the infratemporal fossa

A

Inferior portion of Temporalis m.; Lateral & Medial Pterygoid muscles; Maxillary a.; Pterygoid venous plexus; Nervous Structures: inferior alveolar (V 3 ); Lingual (V 3 ); Buccal (V 3): Chorda tympani (CN VII); Otic ganglion

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5
Q

Bones of the Temporal Fossa (labeled)

A
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6
Q

Lateral view vasculature (labeled)

A
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7
Q

Muscles of Mastication

A

refers to process of chewing; innervated by Trigeminal N; move the mandible at the temporomandibular joint; 4 paired muscles - temporalis, masseter, lateral pterygoids, medial pterygoids

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8
Q
A

top: lateral pterygoid
middle: medial pterygoid
bottom: masseter

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9
Q
A

Top: temporalis

2nd: masseter
3rd: buccinator
4th: orbicularic oris

(3rd + 4th = CNVII)

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10
Q

What 2 muscles function close to the jaw?

A

temporalis and masseter

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11
Q

label the 2nd and 3rd lines and the function of the 3rd?

A

2nd: lateral pterygoid
3rd: medial pterygoid - elevates and protracts the mandible

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12
Q

Posterior view of mandibular sling (labeled)

A
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13
Q

What opens the mandible?

A

gravity, anterior digastric, lateral pterygoid (inferior part)

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14
Q

Function of Temporalis

A

elevates and retracts mandible

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15
Q

function of Masseter

A

elevates and protracts mandible; prime mover of jaw closure

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16
Q

function of lateral pterygoid

A

protracts mandible; produces side-to-side movement of mandible

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17
Q

function of medial pterygoid

A

elevates and protracts mandible; prduces side-to-side movement of mandible

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18
Q

Movements of the temporomandibular joint

A

Elevation (temporalis, masseter, medial pterygoids); Depression (lateral pterygoids, suprahyoid & infrahyoid muscles); Protrusion (lateral pterygoids, masseter, medial pterygoids); Retrusion (temporalis, masseter); Lateral Movements (ipsilateral temporalis,contralateral pterygoids, masseter)

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19
Q

biggest arrow?

A

Temporomandibular joint capsule

20
Q

Joint capsue (labeled) sagital section

A
21
Q

Ligaments (labeled)

A
22
Q

Innervation (labeled) V3, etc

A
23
Q

Deeper innervation (labeled)

A
24
Q

Oral cavity coronal section (labeled)

A
25
Q

Open mouth labeled

A
26
Q

Hemisection of mouth (labeled)

A
27
Q

Intrinsic muscles of the tongue

A

curl, squeeze and fold the tongue during chewing and speaking.

28
Q

extrinsic muscles of the tongue

A

originate on other head and neck structures and insert on the tongue. glossus = “tongue”

29
Q

left and right genioglassus muscles

A

originate on the mandible and protract the tongue

30
Q

left and right styloglossus muscles

A

originate on the styloid processes of the temporal bone; elevate and retract the tongue (pull back into the mouth)

31
Q

left and right hyoglossus muscles

A

originate at the hyoid bone and insert on the sides of the tongue; depress and retract the tongue

32
Q

left and right palatoglossus muscles

A

originate on the soft palate; elevate the posterior portion of the tongue

33
Q

Muscles of the tongue (labeled)

A
34
Q

pharynx

A

“throat”; funnenl-shaped tube that lies posterior to both the oral and nasal cavitites; muscles help form or attach to this tube and aid in swalowing; primary pharynx muscles are the pharyngeal constrictors; initiate swallowing and force bolus inferior into esophagus; help elevate or tense palate when swallowing

35
Q

pharynx muscles (labeled)

A
36
Q

if a muscle has the root “tensor” in its name, it’s innervated by what nerve?

A

CN V (Trigeminal)

37
Q

if a muscle has the root “palat-“ in its name, it’s innervated by what nerve?

A

CN X (Vagus)

38
Q

If a muscle has the root “-glossus” in its name, it’s innervated by what nerve?

A

CN XII (Hypoglossal)

39
Q

What are the 3 laryngeal elevators?

A

palatopharyngeus; salpingopharyngeus; stylopharyngeus (they all elevate the larynx and pharynx)

40
Q

Innervation of the laryngeal elevator muscles

A

palatopharyngeus and salpingopharyngeus innervated by CN X (Vagus) and stylopharyngeus is innervated by CN IX (glossopharyngeal)

41
Q

What are the palate muscles?

A

levator veli palatini (levator, velum, palato); tensor veli palatini

42
Q

Innervation of the palate muscles

A

Levator veli palatini - CN X (Vagus) and Tensor veli palatini - CN V3 (mandibular branch of Trigeminal)

43
Q

What are the pharyngeal constrictor muscles?

A

superior constrictor; middle constrictor; inferior constrictor

44
Q

What is the innervation of the pharyngeal constrictor muscles?

A

All innervated by CN X (Vagus)

45
Q

What are the muscles that move the tongue and their innervation?

A

Genioglossus (CN XII Hypoglossal); Styloglossus (CN XII - hypoglossal); Hyoglossus (CN XII - hypoglossal); palatoglossus (CN X - Vagus)

Anatomy Exam III (4 decks)

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