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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
What kind of a joint is the temporomandibular joint?
- complex joint | - synovial
26
Which part of the lateral pterygoid muscle attaches to the articular disk?
Superior head of the lateral pterygoid muscle attaches to the articular disk.
27
Which ligament attaches to the angle of he mandible and the styloid process?
stylomandibular ligament
28
Which ligament attaches to the spine of the sphenoid and the lingula of the mandible?
sphenomandibular ligament
29
Between which two arches of the oral cavity are the palatine tonsils located?
- Palatoglossal arch | - Palato-pharyngeal arch
30
Which arch is located anterior to the palatine tonsils?
palatoglossal arch
31
Which arch is located posterior to the palatine tonsils?
palato-pharyngeal arch
32
What movements of the tongue do intrinsic muscles control?
Curl, squeeze, and fold the tongue during chewing and speaking.
33
True or False: Extrinsic muscles of the tongue, originate on other head and neck structures and insert on the tongue.
True
34
Besides chewing and speaking, what other important function is the tongue involved with?
Manipulate food within the mouth in preparation for swallowing.
35
Which muscles protract the tongue?
Left and Right genioglossus muscles. *they originate on the mandible*
36
Which muscles elevate and retract the tongue (pull the tongue back into the mouth)?
Left and right styloglossus muscles. **they originate on the styloid processes of the temporal bone**
37
Which muscles elevate the posterior portion of the tongue?
Left and Right palatoglossus muscles. **they originate on the soft palate**
38
Which muscles depress and retract the tongue?
Left and Right hyoglossus muscles. **they originate at the hyoid bone and insert on the sides of the tongue**
39
What is the pharynx ("throat")?
A funnel-shaped tube that lies posterior to both the oral and nasal cavities.
40
Does the pharynx lie posterior to both the oral and nasal cavities?
Yes
41
What muscles are considered the primary pharynx muscles of the pharynx?
Pharyngeal Constrictors: - superior - middle - inferior
42
What is the function of the pharynx?
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
What muscles elevate the pharynx and larynx?
- palatopharyngeus m. - salpingopharyngeus m. - stylopharyngeus m.
44
What is the innervation and action of the palatophayngeus muscle?
- elevates pharynx and larynx | - CN X via branches of pharyngeal plexus
45
What is the innervation and action of the salpingopharyngeus muscle?
- elevates pharynx and larynx | - CN X via branches of pharyngeal plexus
46
What is the innervation and action of the stylopharyngeus muscle?
- elevates pharynx and larynx | - CN IX (glossopharyngeal nerve) via branches of pharyngeal plexus
47
What muscle elevates the soft palate when swallowing?
Levator veli palaini
48
What is the innervation and action of the levator veli palatini muscle?
- elevates soft palate when swallowing | - CN X
49
What muscle tenses soft palate and opens the auditory tube when swallowing or yawning?
Tensor veli palatini
50
What is the innervation and action of the tensor veli palatini muscle?
- tenses soft palate and opens auditory tube when swallowing or yawning - CN V3 (trigeminal nerve, mandibular division)
51
What is the innervation and action of the superior constrictor muscle?
- constrict pharynx in sequence to force bolus into esophagus; superior is innermost - CN X via branches of pharyngeal plexus
52
What is the innervation and action of the middle constrictor muscle?
- constrict pharynx in sequence | - CN X via branches of pharyngeal plexus
53
What is the innervation and action of the inferior constrictor muscle?
- constrict pharynx in sequence, inferior is outermost | - CN X via branches of pharyngeal plexus
54
Of the 3 pharyngeal constrictor muscles, which is the outermost and which is the innermost?
- Superior constrictor: innermost. | - Inferior constrictor: outermost.
55
If a muscle has the root "tensor" in its name, what is it innervated by?
CN V3 (trigeminal n.)
56
If a muscle has the root "palat-" in its name, what is it innervated by?
CN X (vagus n.)
57
If a muscle has the root "-glossus" in its name, what is it innervated by?
CN XII (hypoglossal n.)
58
Which muscle protract the tongue?
genioglossus m. *innervated by CN XII (hypoglossal n.)*
59
Which muscle elevates and retracts the tongue?
styloglossus m. *innervated by CN XII (hypoglossal n.)*
60
Which muscle depresses and retracts the tongue?
hyoglossus m. *innervated by CN XII (hypoglossal n.)*
61
Which muscle elevates the posterior part of the tongue?
palatoglossus m. *innervated by CN X via pharyngeal plexus of nerves*
62
What is the only muscle that moves the tongue that is not innervated by the hypoglossal nerve (CN XII)?
palatoglossus muscle - which is innervated by CN X via the pharyngeal plexus of nerves.
63
What is the only muscle that elevates the pharynx and larynx that is not innervated by CN X via branches of the pharyngeal plexus?
stylopharyngeus muscle - which is innervated by CN IX via branches of pharyngeal plexus.
64
True or False: All pharyngeal constrictor muscles are innervated by CN X (vagus n.).
True
65
Which ligament holds the tooth in its socket?
periodontal ligament

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

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