Muscles Flashcards Preview

Anatomy Block 4 > Muscles > Flashcards

Flashcards in Muscles Deck (172):
1

Trapezius: actions

Rotates, elevates, retracts, and depresses the scapula

2

Trapezius: innervation (motor)

Spinal accessory n

3

Sternocleidomastoid: Superior attachment

Mastoid process, lateral half of superior nuchal line

4

Sternocleidomastoid: action

Laterally flexes the head and rotates the face to opposite side (unilateral), extends head (bilateral)

5

Sternocleidomastoid: innervation

Spinal accessory n

6

Platysma: action

Tenses the skin of the neck, depresses the mandible

7

Platysma: innervation

Cervical branch of the facial nerve

8

Sternohyoid: SA

body of hyoid bone

9

Sternohyoid: IA

posterior surface of manubrium of sternum

10

Sternohyoid: action

Depress hyoid

11

Sternohyoid: I

Ansa cervicalis (C1-C3)

12

Omohyoid: SA

inferior border of hyoid bone

13

Omohyoid: IA

superior border of scapula near suprascapular notch

14

Omohyoid: Action

Depresses and retracts the hyoid

15

Omohyoid: I

Ansa cervicalis (C1-C3)

16

Sternothyroid: SA

Oblique line of thyroid cartilage

17

Sternothyroid: IA

Posterior surface of manubrium of sternum

18

Sternothyroid: action

Depresses thyroid cartilage and larynx

19

Sternothryoid: I

Ansa cervicalis (C1-C3)

20

Thyrohyoid: SA

Inferior border of body and greater horn of hyoid

21

Thyrohyoid: IA

Oblique line of thyroid cartilage

22

Thryohyoid: action

depresses hyoid and elevates the thyroid cartilage and larynx

23

Thyrohyoid innervation

C1 via hypoglossal n.

24

Digastric: SA

Digastric fossa of mandible (anterior belly)

25

Digastric: IA

Mastoid process of the temporal bone (posterior belly)

26

Digastric: action

elevates hyoid and depresses mandible

27

Digastric: innervation

nerve to mylohyoid (anterior belly)
Facial n (posterior belly)

28

Stylohyoid superior attachment

Styloid process

29

Stylohyoid: IA

body of the hyoid

30

Stylohyoid: A

elevates hyoid

31

Stylohyoid: I

Facial n

32

Mylohyoid: SA

mylohyoid line of mandible

33

Mylohyoid: IA

hyoid bone and mylohyoid raphe

34

Mylohyoid: action

supports the floor of the oral cavity

35

Mylohyoid: I

n. to mylohyoid

36

Anterior scalene: IA

First rib

37

Anterior scalene: action

Flexes neck, elevates first rib during inspiration

38

Anterior scalene: I

Anterior rami C4-6

39

Middle scalene: IA

First rib

40

Middle scalene: A

Flexes neck, elevates first rib during inspiration

41

Middle scalene: I

Anterior rami C2-C6

42

Posterior scalene: IA

second rib

43

Posterior scalene: A

Flexes neck laterally, elevates second rib during inspiratoin

44

Posterior scalene: I

anterior rami C7-C8

45

Orbicularis oculi: A

tightly closes the eye (orbital part), blinking (palpebral part)

46

Orbicularis oculi: I

Facial n

47

Levator labii superioris: MA

Upper lip

48

Levator labii superioris: LA

maxilla just below the orbital margin

49

Levator labii superioris: A

elevates upper lip

50

Levator labii superioris: I

Facial n

51

Zygomaticus major: MA

angle of the mouth

52

Zygomaticus major: LA

zygomatic bone

53

Zygomaticus major: action

draws angle of mouth superiorly and posteriorly

54

Zygomaticus major: innervation

facial n

55

Orbicularis oris: LA

angle of the mouth

56

Orbicularis oris: A

sphincter of mouth

57

Orbicularis oris: I

facial n

58

Buccinator: MA

angle of the mouth

59

Buccinator: A

compresses cheek against molar teeth, keeping food on the occlusal surfaces during chewing

60

Buccinator: I

Facial n

61

Depressor anguli oris: MA

angle of the mouth

62

Depressor anguli oris: LA

mandible

63

Depressor anguli oris: A

depresses the angle of the mouth

64

Depressor anguli oris: I

facial n

65

Depressor labii inferioris: MA

lower lip

66

Depressor labii inferioris: LA

mandible

67

Depressor labii inferioris: A

depresses lower lip

68

Depressor labii inferioris: I

facial n

69

Masseter: SA

zygomatic arch

70

Masseter: IA

ramus and angle of mandible

71

Masseter: Actions

Elevates and protrudes mandible

72

Masseter: I

CN V3 via mandibular n

73

Temporalis: SA

floor of temporal fossa

74

Temporalis: IA

Coronoid process and ramus of mandible

75

Temporalis: A

Elevates and retrudes mandible

76

Temporalis: I

CN V3 via deep temporal nn

77

Medial pterygoid: IA

medial surface of ramus of mandible

78

Medial pterygoid: A

Elevates and protrudes mandible (bilateral), side to side movement of mandible (unilateral)

79

Medial pterygoid: I

CN V3 via medial pterygoid n

80

Lateral pterygoid: A

Depresses and protrudes mandible (bilateral), side to side movement of mandible (unilateral)

81

Lateral pterygoid: I

CN V3 via lateral pterygoid n

82

Levator palpebrae superioris: AA

tarsal plate of the upper eyelid

83

Levator palpebrae superioris PA

sphenoid bone

84

Levator palpebrae superioris: A

elevation and retraction of the upper eyelid

85

Levator palpebrae superioris i

oculomotor n

86

superior rectus: aa

sclera

87

Superior rectus: pa

common tendinous ring

88

superior rectus: A

elevates and adduction of eye

89

superior rectus: I

oculomotor

90

superior oblique: AA

sclera

91

superior oblique: IA

sphenoid bone

92

superior oblique: A

depression, intorsion, and abduction of the eye

93

superior oblique: I

trochlear n

94

lateral rectus: AA

sclera

95

lateral rectus: pa

common tendinous ring

96

lateral rectus: action

abduction of eye

97

lateral rectus innervation

abducens

98

medial rectus: AA

sclera

99

medial rectus: PA

common tendinous ring

100

medial rectus: A

adduction of the eye

101

medial rectus: I

oculomotor n

102

inferior rectus: AA

sclera

103

inferior rectus: PA

common tendinous ring

104

inferior rectus: A

depression and adduction of the eye

105

inferior rectus: I

oculomotor

106

Inferior oblique: AA

sclera

107

inferior oblique: PA

maxilla

108

inferior oblique: action

elevation, extorsion, and abduction of eye

109

inferior oblique: innervation

oculomotor

110

Superior phayngeal constrictor: AA

pterygoid hamulus

111

Superior phayngeal constrictor: PA

pharyngeal tubercle

112

Superior phayngeal constrictor: A

constrict wall of pharynx during swallowing

113

Superior phayngeal constrictor: I

vagus n

114

Middle pharyngeal constrictor: AA

greater horn of the hyoid bone

115

Middle pharyngeal constrictor: IA

pharyngeal raphe

116

Middle pharyngeal constrictor: A

constrict wall of pharyx during swallowing

117

Middle pharyngeal constrictor: I

vagus n

118

Inferior pharyngeal constrictor: PA

pharyngeal raphe

119

Inferior pharyngeal constrictor: A

constrict wall of pharynx during swallowing

120

Inferior pharyngeal constrictor: I

vagus n

121

Stylopharyngeus: AA

styloid process

122

Stylopharyngeus: PA

thryoid cartilage

123

Stylopharyngeus: A

elevate pharynx and larynx during swallowing and speaking

124

Stylopharyngeus: I

glossopharyngeal n

125

Palatoglossus: SA

palatine aponeurosis

126

palatoglossus: IA

lateral aspect of the tongue

127

palatoglossus: A

elevates tongue and depresses soft palate

128

palatoglossus: I

vagus n

129

Palatopharyngeus: SA

hard palate

130

Palatopharyngeus: IA

thyroid cartilage

131

Palatopharyngeus: A

elevates larynx during swallowing and speaking

132

Palatopharyngeus: I

vagus n

133

Salpingopharyngeus: SA

cartilage of eustachian tube

134

Salpingopharyngeus: IA

thyroid cartilage

135

Salpingopharyngeus: A

elevates larynx during swallowing and speaking

136

Salpingopharyngeus: I

vagus n

137

Musculus uvulae: SA

posterior nasal spine

138

Musculus uvulae: IA

palatine aponeurosis

139

Musculus uvulae: A

elevates and retracts uvula

140

Musculus uvulae: I

vagus n

141

Levator veli palatini: SA

cartilage of eustachian tube and petrous part of temporal bone

142

Levator veli palatini: IA

palatine aponeurosis

143

Levator veli palatini: a

elevates and retracts uvula

144

Levator veli palatini: I

vagus

145

Tensor veli palatini: SA

scaphoid fossa and spine of sphenoid bone

146

Tensor veli palatini: IA

palatine aponeurois

147

Tensor veli palatini: A

tenses soft palate

148

Tensor veli palatini: I

mandibular division of trigeminal (CN V3)

149

Geniohyoid: SA

inferior mental spine of mandible

150

Geniohyoid: IA

body of hyoid bone

151

Geniohyoid: A

pulls the hyoid bone anteriorly

152

Geniohyoid: I

Hypoglossal n

153

Genioglossus: SA

superior mental spine of the mandible

154

Genioglossus: IA

hyoid bone and tongue

155

Genioglossus: actions

depresses and protrudes the tongue

156

Genioglossus: I

hypoglossal n

157

hyoglossus: SA

tongue

158

hyoglossus: IA

body and greater horn of hyoid bone

159

hyoglossus: A

depresses and retracts tongue

160

hyoglossus: I

hypoglossal n

161

styloglossus: SA

styloid process

162

styloglossus: IA

tongue

163

styloglossus: A

retracts tongue and draws it superiorly

164

styloglossus: I

hypoglossal n

165

Cricothyorid: SA

inferior margin and inferior horn of cartilage

166

Cricothyorid: IA

anterolateral surface of cricoid cartilage

167

Cricothyorid: A

tilts the thyroid cartilage anteriorly to lengthen (tense) vocal cords

168

Cricothyorid: I

external branch of the superior laryngeal n

169

Posterior cricoarytenoid: SA

muscular process of arytenoid cartilage

170

Posterior cricoarytenoid: IA

posterior surface of the lamina of cricoid cartilage

171

Posterior cricoarytenoid: A

rotates arytenoid cartilage laterally to abduct vocal cords

172

Posterior cricoarytenoid: I

Inferior laryngeal branch of the recurrent laryngeal