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Human Anatomy II -- Unit 3 -- Zach H. > Deep Face I > Flashcards

Deep Face I Flashcards

1
Q

Which two fossae are found in the temporal region?

A
  • temporal fossa

- infratemporal fossa

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2
Q

Which fossa is the space found superior to the zygomatic arch?

A

temporal fossa

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3
Q

Which fossa is the space found inferior to the zygomatic arch?

A

infratemporal fossa

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4
Q

What is the lateral boundary of the infratemporal fossa?

A

Ramus of Mandible

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5
Q

What is the anterior boundary of the infratemporal fossa?

A

Maxilla

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6
Q

What is the medial boundary of the infratemporal fossa?

A

Lateral Pterygoid Plate

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7
Q

What is the roof boundary of the infratemporal fossa?

A

Sphenoid

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8
Q

What is the posterior boundary of the infratemporal fossa?

A

Tympanic plate and mastoid and styloid processes.

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9
Q

What is the inferior boundary of the infratemporal fossa?

A

Angle of Mandible

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10
Q

What are the contents of the infratemporal fossa?

A 
> inferior portion of temporalis m. 
> lateral and medial pterygoid m. 
> maxillary a. 
> pterygoid venous plexus 
> nervous structures
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11
Q

What are the nervous structures that are found in the infratemporal fossa?

A
  • inferior alveolar (V3)
  • lingual (V3)
  • buccal (V3)
  • chorda tympani (CN VII)
  • otic ganglion
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12
Q

What are the four paired muscles of mastication?

A
  • temporalis
  • masseter
  • lateral pterygoids
  • medial pterygoids

innervated by the trigeminal nerve (CN V3)

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13
Q

What do muscles of mastication do?

A

Move the mandible at the temporomandibular joint.

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14
Q

What bony structure does the lateral pterygoid and medial pterygoid sandwich?

A

Ramus of Mandible

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15
Q

What does the temporalis and masseter do?

A

Both function to close the jaw.

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16
Q

What does the medial pterygoid do?

A

Elevate and protracts the mandible.

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17
Q

What opens the mandible?

A
  • gravity
  • anterior digastric
  • lateral pterygoid (inferior part)
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18
Q

Which muscle of mastication is the prime mover of jaw closure?

A

masseter

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19
Q

What does the lateral pterygoid do?

A

Protracts mandible; produces side-to-side movement of mandible.

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20
Q

What muscles elevate the temporomandibular joint?

A
  • temporalis
  • masseter
  • medial pterygoids
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21
Q

What muscles depress the temporomandibular joint?

A
  • lateral pterygoids
  • suprahyoid
  • infrahyoid
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22
Q

What muscles cause protrusion of the temporomandibular joint?

A
  • lateral pterygoids
  • masseter
  • medial pterygoids
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23
Q

What muscles cause retrusion of the temporomandibular joint?

A
  • temporalis

- masseter

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24
Q

What muscles cause lateral movement of the temporomandibular joint?

A
  • ipsilateral temporalis
  • contralateral pterygoids
  • masseter
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25
Q

What kind of a joint is the temporomandibular joint?

A
  • complex joint

- synovial

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26
Q

Which part of the lateral pterygoid muscle attaches to the articular disk?

A

Superior head of the lateral pterygoid muscle attaches to the articular disk.

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27
Q

Which ligament attaches to the angle of he mandible and the styloid process?

A

stylomandibular ligament

28
Q

Which ligament attaches to the spine of the sphenoid and the lingula of the mandible?

A

sphenomandibular ligament

29
Q

Between which two arches of the oral cavity are the palatine tonsils located?

A
  • Palatoglossal arch

- Palato-pharyngeal arch

30
Q

Which arch is located anterior to the palatine tonsils?

A

palatoglossal arch

31
Q

Which arch is located posterior to the palatine tonsils?

A

palato-pharyngeal arch

32
Q

What movements of the tongue do intrinsic muscles control?

A

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

33
Q

True or False:

Extrinsic muscles of the tongue, originate on other head and neck structures and insert on the tongue.

A

True

34
Q

Besides chewing and speaking, what other important function is the tongue involved with?

A

Manipulate food within the mouth in preparation for swallowing.

35
Q

Which muscles protract the tongue?

A

Left and Right genioglossus muscles.

they originate on the mandible

36
Q

Which muscles elevate and retract the tongue (pull the tongue back into the mouth)?

A

Left and right styloglossus muscles.

they originate on the styloid processes of the temporal bone

37
Q

Which muscles elevate the posterior portion of the tongue?

A

Left and Right palatoglossus muscles.

they originate on the soft palate

38
Q

Which muscles depress and retract the tongue?

A

Left and Right hyoglossus muscles.

they originate at the hyoid bone and insert on the sides of the tongue

39
Q

What is the pharynx (“throat”)?

A

A funnel-shaped tube that lies posterior to both the oral and nasal cavities.

40
Q

Does the pharynx lie posterior to both the oral and nasal cavities?

A

Yes

41
Q

What muscles are considered the primary pharynx muscles of the pharynx?

A

Pharyngeal Constrictors:

  • superior
  • middle
  • inferior
42
Q

What is the function of the pharynx?

A

Initiate swallowing and force the bolus inferiorly into the esophagus.

Help elevate or tense the palate when swallowing.

this is carried out by the primary pharyngeal constrictor muscles: superior, middle, and inferior

43
Q

What muscles elevate the pharynx and larynx?

A
  • palatopharyngeus m.
  • salpingopharyngeus m.
  • stylopharyngeus m.
44
Q

What is the innervation and action of the palatophayngeus muscle?

A
  • elevates pharynx and larynx

- CN X via branches of pharyngeal plexus

45
Q

What is the innervation and action of the salpingopharyngeus muscle?

A
  • elevates pharynx and larynx

- CN X via branches of pharyngeal plexus

46
Q

What is the innervation and action of the stylopharyngeus muscle?

A
  • elevates pharynx and larynx

- CN IX (glossopharyngeal nerve) via branches of pharyngeal plexus

47
Q

What muscle elevates the soft palate when swallowing?

A

Levator veli palaini

48
Q

What is the innervation and action of the levator veli palatini muscle?

A
  • elevates soft palate when swallowing

- CN X

49
Q

What muscle tenses soft palate and opens the auditory tube when swallowing or yawning?

A

Tensor veli palatini

50
Q

What is the innervation and action of the tensor veli palatini muscle?

A
  • tenses soft palate and opens auditory tube when swallowing or yawning
  • CN V3 (trigeminal nerve, mandibular division)
51
Q

What is the innervation and action of the superior constrictor muscle?

A
  • constrict pharynx in sequence to force bolus into esophagus; superior is innermost
  • CN X via branches of pharyngeal plexus
52
Q

What is the innervation and action of the middle constrictor muscle?

A
  • constrict pharynx in sequence

- CN X via branches of pharyngeal plexus

53
Q

What is the innervation and action of the inferior constrictor muscle?

A
  • constrict pharynx in sequence, inferior is outermost

- CN X via branches of pharyngeal plexus

54
Q

Of the 3 pharyngeal constrictor muscles, which is the outermost and which is the innermost?

A
  • Superior constrictor: innermost.

- Inferior constrictor: outermost.

55
Q

If a muscle has the root “tensor” in its name, what is it innervated by?

A

CN V3 (trigeminal n.)

56
Q

If a muscle has the root “palat-“ in its name, what is it innervated by?

A

CN X (vagus n.)

57
Q

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

A

CN XII (hypoglossal n.)

58
Q

Which muscle protract the tongue?

A

genioglossus m.

innervated by CN XII (hypoglossal n.)

59
Q

Which muscle elevates and retracts the tongue?

A

styloglossus m.

innervated by CN XII (hypoglossal n.)

60
Q

Which muscle depresses and retracts the tongue?

A

hyoglossus m.

innervated by CN XII (hypoglossal n.)

61
Q

Which muscle elevates the posterior part of the tongue?

A

palatoglossus m.

innervated by CN X via pharyngeal plexus of nerves

62
Q

What is the only muscle that moves the tongue that is not innervated by the hypoglossal nerve (CN XII)?

A

palatoglossus muscle - which is innervated by CN X via the pharyngeal plexus of nerves.

63
Q

What is the only muscle that elevates the pharynx and larynx that is not innervated by CN X via branches of the pharyngeal plexus?

A

stylopharyngeus muscle - which is innervated by CN IX via branches of pharyngeal plexus.

64
Q

True or False:

All pharyngeal constrictor muscles are innervated by CN X (vagus n.).

A

True

65
Q

Which ligament holds the tooth in its socket?

A

periodontal ligament

Human Anatomy II -- Unit 3 -- Zach H. (5 decks)

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