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ANAT 316 Term 1 > L15 - Face & Neck Musculature > Flashcards

L15 - Face & Neck Musculature Flashcards

1
Q

Rule of thumb for superifical (subcutaneous) muscles origins and inderstions

A
  • origins: facial bones or adjacent muscles
  • insertions: skin
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2
Q

Muscles of matication function

A

movement of mandible

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3
Q

How many key muscles of mastication are there?

A
  • temporalis
  • masseter
  • medial pterygoid
  • lateral pterygoid
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4
Q

temporalis: origin

A

temporal bone

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5
Q

temporalis: insertion

A

coronoid process of mandible

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6
Q

temporalis: action

A

elevate ansd retratc madible

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7
Q

temporalis: innervation

A

CN V3 (deep temporal)

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8
Q

temporalis: blood supply

A

maxillary artery

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9
Q

temporalis: venous drainage

A

deep temporal vein

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10
Q

masseter: origin

A

zygomatic arch

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11
Q

masseter: insertion

A

coronoid process and ramus of mandible

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12
Q

masseter: action

A

elevate mandible and approximate teeth

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13
Q

masseter: innervation

A

CN V3 (masseteric)

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14
Q

masseter: blood supply

A

maxillary artery

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15
Q

masseter: venous drainage

A

masseteric vein

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16
Q

medial pterygoid: origin

A

maxillary tuberosity and lateral pterygoid plate

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17
Q

medial pterygoid: insertion

A

medial ramus and angle of mandible

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18
Q

medial pterygoid: action

A

elevation and side-to-side movment of mandible

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19
Q

medial pterygoid: innervation

A

CN V3 (medial pterygoid)

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20
Q

medial pterygoid: blood supply

A

maxillary artery

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21
Q

medial pterygoid: venous drainage

A

pterygoid plexus

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22
Q

lateral pterygoid: origin

A

greater wing and lateral pterygoid plate

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23
Q

lateral pterygoid: inerstion

A

condyle process of mandible

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24
Q

lateral pterygoid: action

A

protraction and side to side movement of mandible

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25
lateral pterygoid: innervation
CN V3 (lateral pterygoid)
26
lateral pterygoid: blood supply
maxiallry artery
27
lateral pterygoid: venous drainage
pterygoid plexus
28
Whata re the two major muscle dof the anterior muscle?
- platysma -sternocleidomastoid (SCM)
29
sternocleidomastoid (SCM): origin
manubrium and clavicle
30
sternocleidomastoid (SCM): insertion
mastoid process
31
sternocleidomastoid (SCM): action
- unilateral: head roation and lateral flexion - bilateral: flexion
32
sternocleidomastoid (SCM): innervation
CN XI
33
sternocleidomastoid (SCM): blood supply
superior thyroid artery
34
sternocleidomastoid (SCM): venous drainage
internal jugular vein
35
Muscles of surpahyoid (4)
- digastric - stylohyoid - mylohyoid - geniohyoid
35
What are the two groups of the deep anterior neck?
- hyoid muscles - scalene muscles
36
Hyoid muscles subgroups (2)
- surpahyoid (above) - infrahyoid (below)
37
muscles of infrahyoid (4)
- omohyoid - sternohyoid - thyrohyoid - sternothyroid
38
digastric: origin
inferior border of mandible
39
digastric: insertion
temporal bone
40
digastric: action
elevate hyoid and depress mandible
41
digastric: innervation
CN V3 (anterior) and CN VII (posterior)
42
digastric: blood supply
facial artery (anterior) and occipital artery/posterior auricular artery (posterior)
43
digastric: venous drianage
internal jugular vein
44
stylohyoid: insertion
hyoid
45
stylohyoid: origin
styoid process
46
stylohyoid: action
elevate/retract hyoid and elevate tongue
47
stylohyoid: innervation
CN VII
47
stylohyoid: blood supply
occipital artery
48
stylohyoid: venous drainage
internal jugular vein
49
mylohoid: origin
mylohoid line (body of mandible)
50
mylohoid: insertion
other mylohoid and hyoid
51
mylohoid: action
elevate hyoid, support tongue, depress mandible ("oral diaphragm")
52
mylohoid: innervation
CN V3 (inferior alveolar)
53
mylohoid: blood supply
facial artery and inferior alveolar artery
54
mylohoid: venous drainage
internal jugular vein
55
geniohyoid: origin
inferior mental spine (body of mandible)
56
geniohyoid: insertion
hyoid
57
geniohyoid: action
elevate/protrude hyoid
58
geniohyoid: blood supply
lingual artery
59
geniohyoid: innervation
C1 (sheath of CN XII)
60
geniohyoid: venous drainage
internal jugular vein
61
Omohyoid: origin
scapula
62
Omohyoid: insertion
hyoid
63
Omohyoid: action
depress hyoid
64
Omohyoid: innervation
ansa cervicalis (C1-3)
65
Omohyoid: blood supply
superior and inferior thyroid artery
66
Omohyoid: venous drainage
superior and inferior thryoid vein
67
sternohyoid: origin
manubrium (sternum)
68
sternohyoid: insertion
hyoid
69
sternohyoid: action
depress hyoid
70
sternohyoid: innervation
ansa cervicalis (C1-3)
71
sternohyoid: blood supply
superior thyroid artery
72
sternohyoid: venous drainage
superior thyroid vein
73
thyrohyoid: origin
thyroid cartilage
74
thyrohyoid: insertion
hyoid
75
thyrohyoid: action
depress hyoid
76
thyrohyoid: innervation
C1 (sheath of CN XII)
77
thyrohyoid: blood supply
superior thyroid artery
78
thyrohyoid: venous drainage
superior thyroid vein
79
sternoTHYROID: origin
manubrium (sternum)
80
sternoTHYROID: insertion
thyroid cartilage
81
sternoTHYROID: action
depress hyoid and open laryngeal inlet
82
sternoTHYROID: innervation
ansa cervicalis (C1-3)
83
sternoTHYROID: blood supply
superior thyroid artery
84
sternoTHYROID: venous drainge
superior thyroid vein
85
mow many scalene muscles are there?
3
86
where do the scalne muscles originate and insert?
between ribs 1/2 and transvers processes of C1/2 vertebrae
87
scalene muscles: actions (2)
neck flexion and roation
88
scalene muscles: innervation
C3-8
89
scalene muscles: blood supply
inferior thyroid artery
90
scalene muscles: venous drainage
inferior thryoid vein
91
suboccipital triangle 3 major muscles
- obiquus capitis superior - rectus capitis posterior major - obliquus capitis inferior
92
suboccipital triangle adjacent muscle
rectus capitis posterior minor
93
rectus capitis posterior minor: actions
- neck extension and roation - postural support
94
what nerve and artery are in the suboccipital triangle?
- vertebral artery - grrater occipital nerve

ANAT 316 Term 1 (22 decks)

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