Lecture 15: Face and Neck musculature Flashcards
1
Q
Frontalis group
A
epicranial
2
Q
Frontalis action
A
draws scalp back and raises eyebrows (SURPRISE)
3
Q
Frontlis innervation
A
CN VII (temporal)
4
Q
Frontalis Blood Supply
A
internal and external carotid a.
5
Q
Frontalis Venous drainage
A
opthalmic v.
6
Q
Corrugator supercilii group
A
orbital
7
Q
Corrugator Supercilii action
A
draws eyebrows medially and inferiorly (MAD)
8
Q
Corrugator Supercilii innervation
A
CN VII (temporal)
9
Q
Corrugator Supercilii Blood supply
A
opthalmic a.
10
Q
Corrugator SUpercilii venous drainage
A
superior opthalmic v.
11
Q
orbicularis oculi group
A
orbital group (3 parts):
1. Orbital
2. Palpebral
3. Lacrimal
12
Q
Orbicularis Oculi orbital action
A
Wink (tightly close eye)
13
Q
Orbicularis oculi palpebral action
A
blink (loosely close eye)
14
Q
Orbicularis oculi lacrimal action
A
Compress lacrimal sac (release tears)
15
Q
Orbivularis Oculi innervation
A
CN VII (temporal & zygomatic)
16
Q
Orbicularis Oculi Blood supply
A
facial a., superficial temporal a., & opthalmic a.
17
Q
Orbicularis Oculi Venous Drainage
A
facial v.
18
Q
Orbicularis Oris group
A
orbital
19
Q
Orbicularis Oris Action
A
purse & protrude lips
20
Q
Orbiculris oris innervation
A
CV VII (buccal & mandibular)
21
Q
Orbicularis Oris blood supply
A
facial a.
22
Q
Orbicularis Oris Venous Drainage
A
Facial v.
23
Q
Bucinator Group
A
oral
24
Q
Buccinator action
A
pull cheeks inward
25
Buccinator Blood supply
buccal & facial a.
26
Buccinator Venous drainage
Pterygoid plexus & internal maxillary v.
27
zygomaticus major group
oral
28
zygomaticus major action
superior/lateral movement of mouth corners (SMILE)
29
zygomaticus major innervation
CV VII (zygomatic & buccal)
30
zygomaticus major blood supply
facial a.
31
zygomaticus major venous drainage
facial v
32
Zygomaticus minor group
oral
33
zygomaticus minor actio
superior/lateral movement of mouth corners (SMILE)
34
zygomaticus minor innervation
CV VII (zyogmatic & buccal)
35
zygomaticus minor blood supply
facial a.
36
zygomaticus minor venous drainage
facial v.
37
Platysma group
neck
38
platysma action
inferior movement of mouth corners
39
platysma innervation
CV VII (cervical & mandibular)
40
platysma blood supply
facial a.
41
platysma venous drainage
facial v.
42
function of muscles of mastification
movement of the mandible
43
4 key muscles of mastification
-temporalis
-masseter
-medial pterygoid
-lateral pterygoid
44
Temporalis origin
temporal bone
45
temporalis insertion
coronoid process of mandible
46
temporalis action
elevate & retract mandible
47
temporalis innervation
CN V(3) (deep temporal)
48
temporalis blood supply
maxillary artery
49
temporalis venous drainage
deep temporal vein
50
Masseter Origin
zygomatic arch
51
masseter insertion
cornoid process & ramus of mandible
52
masseter action
elevate mandible & approximate teeth
53
Messeter innervation
CN V(3) (masseteric)
54
Messeter blood supply
maxillary a.
55
Messeter venous drainage
masseteric v.
56
Medial Pterygoid origin
mexillary tubersoity & lateral pterygoid plate
57
Medial Pterygoid Insertion
medial ramus & andle of mandible
58
Medial pterygoid action
elevation & side-to-side movement of mandible
59
Medial pterygoid innervation
CN V(3) (medial pterygoid)
60
Medial pterygoid blood supply
maxillary a.
61
Medial pterygoid venous drainage
pterygoid plexus
62
Lateral pterygoid origin
greater wing & lateral pterygoid plate
63
Lateral pterygoid insertion
condylar process of mandible
64
Lateral pterygoid action
protraction & side-to-side movement of mandible
65
Lateral pterygoid innervation
CV V(3) (lateral pterygoid)
66
Lateral pterygoid blood supply
maxillary a.
67
Lateral pterygoid venous drainage
pterygoid plexus
68
Two major muscles in superficial anterior neck
1. Platysma
2. Sternocleidomastoid (SMC)
69
SMC origin
manubrium & clavicle
70
SMC insertion
mastoid process
71
SCM action
Bilateral: flexion
Unilateral: head rotation & lateral flexion
72
SMC innervation
CN XI
73
SCM blood supply
superior thyroid a.
74
SMC venous drainage
internal jugular vein
75
Two groups of deep anterior neck muscles
1. Hyoid muscles
2. Scalene muscles
76
Suprahyoid muscles (above hyoid)
1. Digastric
2. Stylohyoid
3. Mylohyoid
4. Geniohyoid
77
Infrahyoid muscles (below hyoid)
1. Omohyoid
2. Sternohyoid
3. Thyrohyoid
4. Sternothyroid
78
Digastric Origin
inferior border of mandible
79
DIgastric insertion
temporal bone
80
Digastric action
elevate hyoid & depress mandible
81
Digastric innervation
CN V(3) (anterior) & CN VII (posterior)
82
Digastric blood supply
facial a. (anterior), & Occipital a./posterior aricular a. (posterior)
83
digastric venous drainage
internal jugular v.
84
Stylohyoid origin
styloid process
85
Stylohyoid insertion
hyoid
86
Stylohyoid action
elevate/retract hyoid & elevate tongue
87
Stylohyoid innervation
CN VII
88
Stylohyoid blood supply
occipital a.
89
stylohyoid venous drainage
internal jugular v.
90
Mylohyoid origin
mylohyoid line (body of mandible)
91
Mylohyoid insertion
other mylohyoid & hyoid
92
Mylohyoid action
elevate hyoid, support tongue, depress mandible
93
Mylohyoid innervation
CN V(3)
94
Mylohyoid blood supply
facial a. & inferior alveolar a.
95
Mylohyoid venous drainage
internal jugular v.
96
other name for mylohyoid
oral diaphragm
97
Geniohyoid origin
inferior mental spine (body of mandible)
98
Geniohyoid insertion
hyoid
99
Geniohyoid action
elevate/protrude hyoid
100
Geniohyoid innervation
C1 (sheath of CN XII)
101
Geniohyoid blood supply
lingual a.
102
Geniohyoid venous drainage
internal jugular v.
103
Omohyoid origin
scapula
104
Omohyoid insertion
hyoid
105
Omohyoid action
depress hyoid
106
Omohyoid innervation
ansa cervicalis (C1-3)
107
Omohyoid blood supply
superior & inferior thyroid a.
108
Omohyoid venous drainage
superior and inferior thyroid v.
109
Sternohyoid origin
manubrium (sternum)
110
Sternohyoid insertion
hyoid
111
Sternohyoid action
depress hyoid
112
Sternohyoid innervation
ansa cervicalis (c1-3)
113
Sternohyoid blood supply
superior thyroid a.
114
Sternohyoid venous drainage
superior thyroid v.
115
Thyrohyoid origin
thyroid cartilage
116
Thyrohyoid insertion
hyoid
117
Thyrohyoid action
depress hyoid
118
Thyrohyoid innervation
C1 (sheath of CN XII)
119
Thyrohyoid blood supply
superior thyroid a.
120
Thyrohyoid venous drainage
superior thyroid v.
121
Sternothyroid orign
manubrium (sternum)
122
Sternothyroid insertion
thyroid cartilage
123
Sternothyroid action
depress hyoid & open laryngeal inlet
124
Sternothyroid innervation
ansa cervicalis (C1-3)
125
Sternothyroid blood supply
superior thyroid a.
126
Sternothyroid venous drainage
superior thyroid v.
127
Scalene muscles origin and insertion
between ribs 1/2 & transverse processes of C1/2 vertebrae
128
Scalene muscles fucntion
neck flexion & rotation
129
Scalene muscles innervation
C3-8
130
Scalene Muscles blood supply
inferior thyroid a.
131
Scalene msucles venous drainage
inferior thyroid v.
132
order of superficial to deep dissection to reach suboccipital triangle
1. remove trapezius
2. remove splenius capitis
3. reflect levator scapulae
4. remove semispinalis capitis
5. Identify suboccipital triangle muscles
133
3 major muscles of suboccipital triangle
1. Obliquus Capitis Superior
2. Rectus Capitis Posterior Major
3. Obliquus Capitis Inferior
134
1 adjacent muscles of suboccipital triangle
Rectus capitis posterior minor
135
Function of adjacent muscle to suboccipital triangle
-neck ext & rotation
-postural support
136
Contents of suboccipital triangle
-greater occipital n.
-vertebral a.
