Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Head and Neck > Muscles of mastication, Temperomandibular Joint, Oral Cavity > Flashcards

Muscles of mastication, Temperomandibular Joint, Oral Cavity Flashcards

1
Q

What is the classification of the Temperomandibular Joint? What makes it atypical?

A

Modified synovial hinge joint:

  • depression and elevation (hinge movements)
  • retraction and protraction (gliding movements)

It is atypical as it has no hyaline cartilage on the bony surfaces. Instead the bony articular surfaces are covered by fibrocartilage.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the bony articulations of the Temperomandibular Joint?

A
  • Mandibular Fossa of Temporal Bone
  • Condylar Process of Mandible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the attachments of the joint capsule of the Temperomandibular Joint?

A
  • Articular Tubercle
  • Mandibular Fossa
  • Neck of the Mandible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where is the joint capsule of the Temperomandibular Joint loose and where is it tight?

A
  • Loose above articular disc
    • Allows protraction and retraction
  • Tight below articular disc
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the thickened part of the Tempermandibular Joint Capsule form? What does it do?

A
  • Lateral (temporaomandibular) ligament
    • Prevents posterior dislocation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the extrinsic ligaments of the Temporomandibular Joint?

A

Stylomandibular Ligament

Sphenomandibular Ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Give the origin, attachment and function of the Stylomandibular Ligament.

A
  • Origin:
    • Styloid Process
    • Angle of the Mandible
  • Function:
    • Limited contribution to stability of the Mandible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Give the attachment and function of the Sphenomandibular Ligament.

A
  • Attachment:
    • Spine of the Sphenoid
    • Lingula of the Mandible
  • Function:
    • Primary passive support of the Mandible
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the blood supply to the Temperomandibular Joint?

A

Superficial Temporal Artery

Superficial Temporal Vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the innervation to the Temperomandibular Joint?

A
  • Auriculotemporal Nerve
  • Masseteric Branches of CN V3
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the differences in function between the superior part of the Temporomandibular Joint and the inferior part?

A

Inferior = Allows for hinge movements

Superior = Allows for gliding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which muscles enable elevation of the Temporomandibular Joint?

A

Temporalis

Masseter (superficial and deep heads)

Medial Pterygoid (superficial and deep heads)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Which muscles enable depression of the Temperomandibular Joint?

A

Suprahyoid Muscles

Infrahyoid Muscles

Lateral Pterygoid (Superior and Inferior Heads)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Which muscles enable protrusion of the Temporomandibular Joint?

A

Masseter (Superficial Fibres)

Lateral Pterygoid (Superior and Inferior Heads)

Medial Pterygoid (Superficial and Deep Heads)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which muscles enable retraction of the Temporomandibular Joint?

A
  • Masseter
  • Temporalis
  • Lateral Pterygoid
    • Superior head applies traction to the articular disk to prevent posterior movement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the innervation for the muscles of mastication?

A

Branches of the Trigeminal Nerve (CN V3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the innervation of the Masseter Muscle?

A

Masseteric Branches of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the innervation of the Temporalis (Temporal) Muscle?

A

Deep Temporal Branches of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the innervation of the Lateral Pterygoid Muscle?

A

Lateral Pterygoid Branches of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the innervation of the Medial Pterygoid Muscle?

A

Medial Pterygoid Branches of CN V3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which ganglion does this nerve arise from?

A

Ophthalmic Branch (CN V1​) of Trigeminal Nerve

Arises from Cilliary Ganglion

Sensory Only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q
A
  • Maxillary Branch (CN V2) of Trigeminal Nerve
    • Sensory Only
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q
A
  • Mandibular Branch (CN V3) of Trigeminal Nervee
    • Sensory and Motor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the ganglion of the Ophthalmic Branch?

A

Cilliary Ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What are the ganglia of the Maxillary Branch?

A

Pterygopalatine ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What are the ganglia of the Mandibular Branch?

A

Otic ganglion

Submandibular ganglion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What part of the face does the Supraorbital Nerve supply?

A

Forehead. It is a branch of the Frontal Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What part of the face does the Supratrochlear Nerve supply?

A

Nose Bridge and Eyelids. It is a branch of the Frontal Nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What does the Lacrimal Nerve supply?

A

Lacrimal Gland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

What part of the face does the Nasociliary Nerve supply?

A

Nasal Cavity and Septum

Eye

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What are the parts of the Oral Region

A
  • Oral Cavity
  • Teeth
  • Gingivae
  • Tongue
  • Palate
  • Region of the palatine tonsils
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What is the Oral Cavity divided into?

A

Oral Vestibule

Oral Cavity Proper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What are the borders of the Oral Vestibule?

A
  • Anterior
    • Lips
    • Oral Fissure
  • Lateral
    • Cheeks
      • Buccinator and Skin (External)
      • Mucosa (Internal)
  • Posterior and Medial
    • Upper and Lower Dental Arcades
    • Alveolar Bone
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What are the borders of the Oral Cavity Proper?

A
  • Lateral and Anterior
    • Upper and Lower Dental Arcades
    • Alveolar Bone
  • Roof:
    • Hard Palate
    • Soft Palate
  • Floor:
    • Myohyoid Muscle
    • Geniohyoid Muscles
    • Tongue
  • Posterior:
    • Oropharyngeal Isthmus
    • Oropharynx
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

How far does the Oral Vestibule extend?

A
  • Laterally and Superiorly
    • Nasolabial Sulci
    • Nares
  • Inferiorly
    • Mentolabial Sulcus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Explain the structure of the lip part of the Oral Vestibule

A
  • External
    • Skin
  • Muscles
    • Orbicularis Oris
    • Superior Labial Muscle
    • Inferior Labial Muscle
  • Internal (Intraoral / Vestibular)
    • Musosa
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What arteries supply the lip part of the Oral Vestibule?

A

Superior Labial Branch of Facial Artery

Inferior Labial Branch of Facial Artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

What is the innervation of the lip part of the Oral Vestibule

A
  • Upper Lip:
    • Superior Labial Branch of Infra-Orbital Nerve (CN V2)
  • Lower Lip:
    • Inferior Labial Branch of the Mental Branch of the Inferior Alveolar Nerve (CN V3)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Explain the lymphatic drainage of the lip part of the Oral Vestibule

A
  • Upper Lip
    • Submandibular Lymph Nodes
  • Lateral part of Lower Lip
    • Submandibular Lymph Nodes
  • Medial part of Lower Lip
    • Submental Lymph Nodes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q
A

Vestibule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q
A

Buccinator Muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q
A

Oral Fissure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q
A

Vermillion border of lip

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q
A

Orbicularis Oris Muscle

45
Q
A

Facial Artery

46
Q
A

Superior and Inferior Labial Arteries

47
Q
A

Philtrum

48
Q
A

Orbicularis Oris Muscle

49
Q
A

Artery and Vein

50
Q
A

Labial Salivary Glands

51
Q
A

Vermillion Borders

52
Q
A
53
Q

Explain the structure of the cheek part of the Oral Vestibule

A
  • External
    • Skin
  • Muscles
    • Buccinator Muscle
      • Continuous with the Superior Constrictor of the Oropharynx Posterior at the Pterygomandibular Raphe
  • Internal (Intraoral / Vestibular)
    • Mucosa with imbedded Buccal Glands
54
Q

Where does the blood supply of the cheek part of the Oral Vestibule come from?

A

Buccal Branch of Maxillary Artery

55
Q

Explain the innervation of the cheek part of the Oral Vestibule

A
  • Motor
    • Buccal Branch of Facial Nerve (CN VII)
  • Sensory
    • Buccal Brach of Mandibular Nerve (CN V3)
56
Q

Explain the structure of the gingivae part of the Oral Vestibule

A
  • Fibrous tissue covered by muscous membrane
  • Gingiva Proper
    • Connected firmly to alveolar processes and necks of teeth
    • Pink, stippled, keratinizing
  • Alveolar mucosa
    • Unattached mucosa
    • Shiny, red, non-keratinizing
57
Q

Briefly explain the general innervation of the gingivae part of the Oral Vestibule

A
  • Upper Arch
    • Branches of the Maxillary Nerve (CN V2)
  • Lower Arch
    • Branch of the Mandibular Nerve (CN V3)
58
Q
A

Nasopalatine Nerve (from V2)

59
Q
A

Anterior Superior Alveolar Nerve (from V2​)

60
Q
A

Middle Superior Alveolar Nerve (from V2​)

61
Q
A

Posterior Superior Alveolar Nerve (from V2​)

62
Q
A

Greater Palatine Nerve (from V2​)

63
Q
A

Posterior Superior Alveolar Nerve (from V2​)

64
Q
A

Middle Superior Alveolar Nerve (from V2​)

65
Q
A

Anterior Superior Alveolar Nerve (from V2​)

66
Q
A

Lingual Nerve (from V3​)

67
Q
A

Buccal Nerve (from V3​)

68
Q
A

Mental Nerve from Inferior Alveolar Nerve (from V3​)

69
Q
A

Incisive Branch of Inferior Alveolar Nerve

70
Q
A

Main Trunk of Inferior Alveolar Nerve (from V3​)

71
Q

How many teeth are there in adults? In children?

A

32 in adults

20 in children

72
Q

What is the blood supply of the Upper Arcade of teeth?

A
  • Anterior Superior Alveolar Artery
    • From Infra-orbital Branch of Maxillary Artery within the Pterygopalatine Fossa
  • Posterior Superior Alveolar Artery
    • Branch of the Maxillary Artery as it enters Pterygopalatine Fossa

Venous drainage has same name and distribution as the arteries

73
Q

What is the blood supply of the Lower Arcade of the teeth?

A
  • Inferior Alveolar Artery
    • Branch of Maxillary Artery in Infratemporal Fosssa
    • ​Runs within Mandibular Foramen

Venous drainage has same name and distribution as the arteries​

74
Q

Briefly explain the general innervation for the Teeth

A
  • Upper Arcade
    • Branch of Superior Alveolar Nerve (Branch of Maxillary Nerve - CN V2)
  • Lower Arcade
    • Inferior Alveolar Nerve (Branch of Mandibular Nerve - CN V3)
75
Q

Explain the course of the Inferior Alveolar Nerve

A

Branch of CN V3 (which itself branches in infratemporal fossa from CN V)

Enters Mandibular Foramen

Branches to regions of teeth

76
Q

Explain the lymphatic drainage of the teeth

A

Drain into:

Submental Lymph Nodes

Submandibular Lymph Nodes

Deep Cervical Lymph Nodes

77
Q

What is the Hard Palate formed by?

A
  • Anterior two-thirds:
    • Palatine Process of Maxilla Bones
  • Posterior one-third:
    • Horizontal Plates of the Palatine Bones
78
Q

What suspends the soft palate?

A

Suspended to the Hard Palate by Palatine Aponeurosis

79
Q

Explain the funcitoning of the Soft Palate as a valve

A
  • Superiorly
    • Seals off nasal cavity when swallowing
  • Inferiorly
    • Seals off oral cavity (e.g. holding water in mouth while breathing)
80
Q

What are the histological features of the Palate?

A

Closely attached mucosa

Embedded Palatine Glands secrete saliva

81
Q
A

Palatoglossal Arch

82
Q
A

Palatopharyngeal Arch

83
Q
A

Palatine Tonsil

84
Q
A

Anterior margin of Oropharyngeal Isthmus (Palatoglossal Arch)

85
Q
A

Posterior wall of Oropharynx

86
Q

What are the muscles of the Soft Palate? Where do they arise?

A

Arise from the base of the skull and descend to the palate

  • Tensor Veli Palaini
  • Levator Veli Palatini
  • Palatoglossal
  • Musculus Uvulae
87
Q

What is the blood supply to the Soft Palate?

A

Greater Palatine Artery

Lesser Palatine Artery

Ascending Palatine Artery

Venous drainage contributes to Pterygoid Venous Plexus

88
Q

Explain the sensory innervation to the Palate?

A

Branches of Maxillary Nerve (CN V3)

  • Greater Palatine Nerve
  • Nasopalatine Nerve
  • Lesser Palatine Nerve
89
Q

Explain the motor innervation to the Palate

A

Pharyngeal Nerve Plexus

Except Tensor Veli Palatini - Mandibular Nerve (CN V3)

90
Q

Which part of the tongue is mobile? Which part is fixed?

A

Root - Fixed (Posterior 1/3)

Body - Mobile (Anterior 2/3)

91
Q

Where is the tongue located?

A

Partly in Oral Cavity

Partly in Oropharynx

92
Q

What are the surfaces of the tongue?

A

Dorsum (Superior and Posterior)

Inferior Surface (Rests on floor)

93
Q

What are the numerous papillae that make the surface of the tongue rough?

A

Vallate

Fungiform

Foliate

Filiform (Only papillae without taste buds)

94
Q

What divides the muscles of the tongue?

A

Midline Lingual Septum

95
Q

What are the extrinsic muscles of the tongue?

A

Styloglossus Muscles

Hyoglossus Muscles

Palatoglossus Muscles

Genioglossus Muscles

96
Q

What are the intrisic muscles of the tongue?

A

Superior Longitudinal Muscles

Transvers Muscles

Vertical Muscles

Inferior Longitudinal Muscles

97
Q

What is the motor innervation of the tongue?

A

Hypoglossal Nerve (CN XII)

Except Palatoglossus - Pharyngeal Plexus

98
Q

Explain the general sensory innervation of the tongue

A

Anterior two-thirds: Lingual Nerve (from CN V3)

Posterior one-third: Glossopharyngeal Nerve (CN IX)

99
Q

Explain the special sensory (taste) of the tongue

A
  • Anterior two-thirds
    • Chorda Tympani (Branch of CN VII)
  • Posterior one-third
    • Glossopharyngeal (CN IX)
100
Q

What is the arterial supply of the tongue?

A
  • Lingual Artery (Branch of External Carotid Artery)
    • Dorsal Lingual Artery - Root of tongue
    • Deep Lingual Artery - Body of tongue
101
Q

What is the venous drainage of the tongue?

A

Root of tongue: Dorsal Lingual Vein

Body of tongue: Deep Lingual Vein

Both join the Sublingual Vein

102
Q
A

Frenulum

103
Q
A

Sublingual Fold (Plica)

104
Q
A

Sublingual Caruncle

105
Q

Explain the lymphatic drainage of the Tongue

A
  • Root:
    • Bilaterally to Superior Deep Cervical (Jugulodigastric) Lymph Nodes
  • Medial part of Body:
    • Bilaterally into Inferior Deep Cervical Lymph Nodes
  • Lateral parts of Body:
    • Submandibular Lymph Nodes
  • Apex and Frenulum:
    • Submental Lymph Nodes
106
Q

What fossa is the Mandibular Branch (CN V3) of Trigeminal Nerve associated with?

A

Infratemporal Fossa

107
Q

What fossa is the Maxillary Branch (CN V2) of Trigeminal Nerve associated with?

A

Pterygopalatine Fossa

108
Q

What is the Sphenomandibular ligament made of?

A

Thickening of Parotid Fascia

Head and Neck (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions