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Clinical Human Anatomy: Head and Neck > TIPS > Flashcards

TIPS Flashcards

1
Q

fibers of fan shape muscles of mastication go from temporal fossa→ coroniod process mandible

A

Temporalis muscle

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2
Q

Contents of Temporal fossa

A

temporalis muscle

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3
Q

. Posteriorly + Superiorly: Temporal Lines
Anteriorly: Frontal and Zygomatic bones
Laterally: Zygomatic Arch
Inferiorly: Infratemporal Crest—a ridge formed by temporal and sphenoid bones deep 2 zyg.. arch
Floor: bones in region of pterion

A

Boudary of Temporalis fossa

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4
Q

inferior to zyg arch and posterior to maxilla, deep to mandible

A

Inferior temporal fossa

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5
Q

Muscles in Infratemporal fossa invervated by

A

V3

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6
Q

elevates mandible/retracts mandible (moves it posteriorly)

A

Temporalis

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7
Q

lateral to zyg arch, cnxt to inf angle of ramus (not technically IN infratemp fossa)
–lifts up angle of mandible = ELEVATION

A

Masseter

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8
Q

Muscle of Mastication ______ thus bilaterally will ______ the mandible

A

(PAIRED STRUCTURES)
protract or protrude
FORWARD

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9
Q

bilateral for protraction of mandible and depresses chin

A

Lateral Ptyergoid

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10
Q

unilaterally contractions (one then other) will be used for large chewing motions or GRINDING

A

Lateral pterygoid

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11
Q

Inserts at greater wing and lateral surface of lateral pterygoid plate→capsule of TMJ + condyloid process

A

Lateral ptyergoid

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12
Q

Inserts at medial surface of lateral pterygoid plate → medial aspect of ramus of mandible

A

Medial pterygoid

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13
Q

Bilateral: elevalte mandible and protrube chin

A

Medial ptyergoid

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14
Q

Unilateral motion: small chewing motions

A

Medial ptyergoid

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15
Q

Common Feature of muscles of mastication is their attachment to which bone?

A

A: Mandible

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16
Q

Only muscle of mastication that contributes to opening of jaw?

A

A: Lateral Pterygoid

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17
Q 
Temporormandibular Joint (TMJ)
	1.\_\_\_\_\_ w/ synovial btwn; between mandibular condyle and mandibular fossa
A

Hinge joint

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18
Q

connects zyg arch→condyle of mandible

*Intrinsic part; other two are extrinsic

A

Lateral ligament

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19
Q

connects styloid process→ poster aspect of ramus of mandible

-doesn’t limit mvmt of jaw, extrinsic

A

Stylomandibular ligament:

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20
Q

from sphenoid bone→ projection called lingula on medial aspect of ramus w/ mandibular foramen near there (mylogyoid branch of inferior alveolar artery and mylohyoid nerve)
–limits extent you can open jaw, extrinsic

A

Sphenomandiublar lig:

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21
Q

lined w/ synovial membranes + fluid

-fibers here are LOOSE to allow for sliding mvts of condyl

A

Upper compartment:

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22
Q

-fibers here are TIGHT limit to rotational movements

A

Lower compartment

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23
Q

: dislocation is usually

A

ANTERIOR

24
Q

external branch of carotid (along w/ superficial temporal art)
–passes forward and medially

A

Maxillary Artery:

25
Q

heads to foramen spinosum for bones of cranial cavity and meninges
–encircled by auriculotemporal nerve from V3

A

Middle Meningeal Artery

26
Q

heads into mandibular foramen on medial aspect of mandbile and through canal and emerges through mental foramen to give off mental nerve and foramen for mental region/chin region

A

Inferior alveolar nerve

27
Q

What supplies temporalis muscle?

A

muscluar branches of pterygoid part of Maxillary artery

28
Q

medial and lateral pterygoid mslcs supplied by?

A

Muscluar branhces off the pterygoid part of Maxillary artery

29
Q

What 5 branches come off the pterygopalatine part of Maxillary

A

a. post/superior alveolar a.
b. Intraorbital a.
c. Artery of pterygoid canal:
d. Descending palatine artery:
e. Sphenopalatine a

30
Q

enters post surface of maxilla to supply upper teeth

A

post/superior alveolar a.

31
Q

: supply hard palate anterior/soft posteriorly

A

Descending palatine artery

32
Q

comes forward and goes through inferior orbital fissure through canal on deep part of orbit and emerges from infraorbial foramen on maxilla

A

Intraorbital a.

33
Q

will terminate as it goes anteriorly into the sphernoid artery to supply nasal septum/artery

A

Maxillary artery

34
Q

a. has cnx w/ veins on face that are valveless
CC: infection can spread here
b. superior connection to cavernous sinus (on either side of sphenoid bone)
CC: infection/thrombis can move to here too

A

Pterygoid plexus of veins

35
Q
  1. Mandibular Division V3 (MIXED) and has these 5 branches
A

a. Muscular Branches;
b. Buccal n
c. Auriculotemporal n.
d. Inferior alveolar
e. Lingual n.

36
Q

supply masstication mscl

A

Muscular Branches from Mandible

37
Q

(sensory) to cheek and mucosal lining and gingiva

A

Buccal n

38
Q

sensory regioin of auricle and temple

A

Auriculotemporal n.

39
Q

enters mandibular foramen and exits as mental nerve for sensory information from teeth of lower jaw

A

Inferior alveolar n.

40
Q

is motor component of inferior alveolar nerve just before it enters mandibular foramen

A

Nerve to mylohyoid (chin strap muscle)

41
Q

sensory for anterior 2/3 of tongue (touch, temp) and taste sensation (d/t chorda typmpani)

A

Lingual n.

42
Q

Do taste fibers follow trigeminal nerve back?

A

(but these taste fibers don’t follow trigeminal back~ connects w/ chorda tympani instead from facial nerve VII

43
Q

carries secretomotor or pregang PNS/ANS (first runner) that synapse in submand ganglion (handoff) then post gangs (2nd runner) innervate submandibular and sublingual salivary glands.

A

Facial n. VII

a. Chorda tympani :

44
Q

near external auditory meatus, part of ANS, innervates parotid

A

Otic Ganglion:

45
Q

Anterior border of pterygopalatine fossa

A

—maxilla

46
Q

Posterior border of pterygopalatine fossa

A

pterygoid processes of sphenoid b.

47
Q

Superior border of pterygopalatine fossa

A

greater wing of sphenoid b.

48
Q

Medial border of pterygopalatine fossa

A

verticle plate of palatine b. (L shaped bones that make up part of hard palate w/ superior projections contributing to this space)

49
Q

Lateral Wall of PPF

A

does not exist= pterygomaxillary fissure

50
Q

Medially: in palatine bone, contains:

A

sphenopalatine foramen (tiny opening)

51
Q

a. sphenopalatine foramen connects:

A

connects pterygopalatine fossa →nasal cavity

-location where maxillary artery comes and as soon as it enters becomes sphenopalatine artery

52
Q

Posterior wall: 2 openings

A

a. Foramen Rotundum

b. Pterygoid Canal

53
Q

a. Foramen Rotundum

A

V2/Maxillary division of Trigeminal enters PGPF here from middle cranial fossa

  • -continues anteriorly and passes through inferior orbital fissure
  • -As enters inferior orbital fissure becomes infra orbital nerve
54
Q

b. Pterygoid Canal:

A

nerve of ptyergoid canal and artery of pterygoid canal = Vidian n. and artery and pass through pterygoid canal into the fossa
–Vidian Nerve= Greater Petrosal and Deep Petrossal nerve→ lacrimal gland = tears

55
Q

Inferiorly, what comes out of PPF?

A

Apex in this region called Palatine Foramina

a. Greater Palatine Foramen: Greater Palatine N. and Art pass through here and inferiorly—supplies hard palate
b. Lesser Palatine Foramen: Lesser Palatine N. and Art emerge and supply soft palate

Clinical Human Anatomy: Head and Neck (12 decks)

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