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PT1011 Anatomy > MOINA Part 4 (Action) > Flashcards

MOINA Part 4 (Action) Flashcards

1
Q

Superior Rectus

A

Raises cornea upwards and medially

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2
Q

Inferior Rectus

A

Depresses cornea downward and medially

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3
Q

Medial Rectus

A

Rotates eyeball so that cornea looks medially

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4
Q

Lateral Rectus

A

Rotates eyeball so that cornea looks laterally

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5
Q

Superior Oblique

A

Rotates eyeball so thy cornea looks downward and laterally

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6
Q

Inferior Oblique

A

Rotates eyeball so that cornea looks upward and laterally

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7
Q

Orbicularis Oculi

A

Palpebral Part: Closes eyelids and dilates lacrimal sac
Orbital Part: Throws skin around orbit into folds to protect eyeball

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8
Q

Levator Palpebral Superioris

A

Raises upper lid

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9
Q

Occipitofrontalis

A

Occipital Belly and Frontal Belly: Moves scalp on skull and raises eyebrows

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10
Q

Orbicularis Oris

A

Compresses lips together

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11
Q

Levator Anguli Oris

A

Separate lips

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12
Q

Buccinator

A

Compresses cheeks and lips against teeth

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13
Q

Procerus

A

Wrinkles skin of nose

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14
Q

Corrugator Supercilii

A

Vertical wrinkles of forehead, AKA FROWNING

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15
Q

What are the dilator muscles of the lips

A

MUSCLES OF EXPRESSION
1. Levator Labii Superiori Alaeque Nasi
2. Levator Anguli Oris
3. Levator Labii Superioris
4. Orbicularis Oris
5. Zygomaticus Major
6. Zygomaticus Minor
7. Risorius
8. Modiolus
9. Depressor Anguli Oris
10. Depressor Labii Inferioris
11. Mentalis

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16
Q

Dilator muscles of the lips

A

Separate lips

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17
Q

Temporalis

A

Anterior and superior fibers elevate mandible; posterior fibers retract mandible

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18
Q

Masseter

A

Elevates mandible to occlude teeth

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19
Q

Lateral Pterygoid

A

Pulls neck of mandible forward

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20
Q

Medial Pterygoid

A

Elevates mandible

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21
Q

Intrinsic Muscles of the Tongue

A

Longitudinal: alters shape of tongue
Transverse: makes the tongue narrow and elongated
Vertical: flattens and broadens the tongue

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22
Q

Extrinsic Muscles of the Tongue

A

Genioglossus: protrudes apex of tongue
Hyoglossus: depresses tongue
Styloglossus: draws tongue upwards and backward
Palatoglossus: pulls roots of tongue upward and backward, narrows oropharyngeal isthmus

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23
Q

Platysma

A

Depresses mandible and angle of mouth

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24
Q

SCM

A

Two muscles acting together extend head and flex neck; one muscle rotates head to opposite side

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25
Q

Digastric

A

Posterior & Anterior Belly: depresses mandible or elevates hyoid bone

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26
Q

Stylohyoid

A

Elevates hyoid bone

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27
Q

Mylohyoid

A

Elevates floor of mouth and hyoid bone or depresses mandible

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28
Q

Geniohyoid

A

Elevates hyoid bone or depresses mandible

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29
Q

Thyrohyoid

A

Depresses hyoid bone or elevates larynx

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30
Q

Sternothyroid

A

Depresses larynx

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31
Q

Sternohyoid

A

Depresses hyoid bone

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32
Q

Omohyoid

A

Inferior & Superior belly: depresses hyoid bone

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33
Q

Scalenes

A

Scalenus Anterior & Medius: elevates FIRST rib; laterally flexes and rotates cervical part of vertebral column

Scalenus Posterior: elevates SECOND rib; laterally flexes and rotates cervical part of vertebral column

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34
Q

Pectoralis Major

A

Adducts arm and rotates it medially; clavicular fibers also flex arm

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35
Q

Pectoralis Minor

A

Depresses point of shoulder; if the scapula is fixed, it elevates the ribs of origin

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36
Q

Subclavius

A

Depresses the clavicle and steadies this bon during movements of the shoulder girdle

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37
Q

Serratus Anterior

A

Draws the scapula forward around the thoracic wall; rotates the scapula

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38
Q

Trapezius

A

Upper fibers elevate the scapula; middle fibers pull the scapula medially; lower fibers pull medial border of the scapula downward

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39
Q

Latissimus Dorsi

A

Extends, adducts and medially rotates the arm

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40
Q

Levator Scapulae

A

Raises medial border of the scapula

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41
Q

Rhomboid Minor

A

Raises medial border of scapula upward and medially

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42
Q

Rhomboid Major

A

Raises medial border of scapula upward and medially

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43
Q

Deltoid

A

Abducts arm; anterior fibers flex and medially rotate arm; posterior fibers extend and laterally rotate arm

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44
Q

Supraspinatus

A

Abducts arm and stabilizes shoulder joint

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45
Q

Infraspinatus

A

Laterally rotates arm and stabilizes shoulder joint

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46
Q

Teres Minor

A

Laterally rotates arm stabilizes shoulder joint

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47
Q

Teres Major

A

Medially rotates arm and adducts arm and stabilizes shoulder joint

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48
Q

Subscapularis

A

Medially rotates arm and stabilizes shoulder joint

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49
Q

Biceps Brachii (long head and short head)

A

Supinator of forearm and flexor of elbow joint; weak flexor of shoulder joint

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50
Q

Coracobrachialis

A

Flexes arm and also weak adductor

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51
Q

Brachialis

A

Flexor of elbow joint

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52
Q

Triceps brachii (long, lateral, medial head)

A

Extensor of elbow joint

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53
Q

Pronator teres (humeral and ulnar head)

A

Pronation and flexion of forearm

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54
Q

Flexor carpi radialis

A

Flexes and abducts hand at wrist joint

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55
Q

Palmaris longus

A

Flexes hand

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56
Q

Flexor digitorum superficialis (humeroulnar and radial head)

A

Flexes middle phalanx of fingers and assists in flexing proximal phalanx and hand

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57
Q

Flexor carpi ulnaris (humeral and ulnar head)

A

Flexes and adducts hand at wrist joint

58
Q

Flexor pollicis longus

A

Flexes distal phalanx of thumb

59
Q

Flexor digitorum profundus

A

Flexes distal phalanx of fingers; then assists in flexion if middle and proximal phalanges and wrist

60
Q

Supinator

A

Supination if forearm

61
Q

Pronator quadratus

A

Pronates forearm

62
Q

Brachioradialis

A

Flexes forearm at elbow joint; rotates forearm to the midprone position

63
Q

Extensor carpi radialis longus

A

Extends and abducts hand at wrist joint

64
Q

Extensor carpi radialis brevis

A

Extends and abducts hand at wrist joint

65
Q

Extensor carpi ulnaris

A

Extends and adducts hand at wrist joint

66
Q

Extensor digitorum

A

Extends fingers and hand

67
Q

Extensor digiti minimi

A

Extends metacarpophalangeal joint of little finger

68
Q

Anconeus

A

Extends elbow joint

69
Q

Abductor pollicis longus

A

Extends and abducts thumb

70
Q

Extensor pollicis brevis

A

Extends metacarpophalangeal joint of thumb

71
Q

Extensor pollicis longus

A

Extends distal phalanx of thumb

72
Q

Extensor indicis

A

Extends metacarpophalangeal joint of index finger

73
Q

Palmaris brevis

A

Corrugates skin to improve grip of palm

74
Q

Palmaris brevis

A

Corrugates skin to improve grip of palm

75
Q

Opponens pollicis

A

Pulls thumb across medially and forward across palm

76
Q

Lumbricals

A

Flexes metacarpophalangeal joints and extend interphalangeal joints of fingers except thumb

77
Q

Palmar interossei

A

Adduct fingers toward center of third finger

78
Q

Dorsal interossei

A

Abduct fingers from center of third finger; both palmar and dorsal flex metacarpophalangeal joints and extend interphalangeal joints

79
Q

Abductor pollicis brevis

A

Abduction of thumb

80
Q

Flexor pollicis brevis

A

Flexes metacarpophalangeal joint of thumb

81
Q

Adductor pollicis

A

Adduction of thumb

82
Q

Abductor digiti minimi

A

Abducts little finger

83
Q

Flexor digiti minimi

A

Flexes little finger

84
Q

Opponens digiti minimi

A

Pulls 5th metacarpal forward as in cupping the palm

85
Q

Rectus abdominis

A

Compresses abdominal contents and flexes vertebral column; accessory muscle of expiration

86
Q

Transversus abdominis

A

Compresses abdominal contents

87
Q

Obliquus internus abdominis

A

Supports abdominal contents; compresses abdominal contents; assist in flexing and rotation of trunk assist in forced expiration, micturition, defecation, parturition, and vomiting

88
Q

Obliquus externus abdominis

A

Supports abdominal contents; compresses abdominal contents; assist in flexing and rotation of trunk assist in forced expiration, micturition, defecation, parturition, and vomiting

89
Q

Quadratus lumborum

A

Fixes 12th rib during inspiration; depresses 12th rib during forced expiration; laterally flexes vertebral column same side

90
Q

Gluteus maximus

A

Extends and laterally rotates hip joint; through iliotibial tract, it extends knee joint

91
Q

Gluteus medius

A

Abducts thigh at hip joint; tilts pelvis when walking to permit opposite leg to clear ground

92
Q

Gluteus minimus

A

Abducts thigh at hip joint; tilts pelvis when walking to permit opposite leg to clear ground

93
Q

Tensor fasciae latae

A

Assists gluteus maximus in extending the knee joint

94
Q

Piriformis

A

Lateral rotator of thigh at hip joint

95
Q

Gemellus superior

A

Lateral rotator of thigh at hip joint

96
Q

Gemellus inferior

A

Lateral rotator of thigh at hip joint

97
Q

Obturator internus

A

Lateral rotator of thigh at hip joint

98
Q

Quadratus femoris

A

Lateral rotator of thigh at hip joint

99
Q

Sartorius

A

Flexes, abducts, laterally rotates thigh at hip joint; flexes and medially rotates leg at knee joint

100
Q

Iliacus

A

Flexes thigh on trunk; if thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down

101
Q

Psoas

A

Flexes thigh on trunk; if thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down

102
Q

Pectineus

A

Flexes and adducts thigh at hip joint

103
Q

Rectus femoris

A

Extension of leg at knee joint; flexes thigh at hip joint

104
Q

Vastus lateralis

A

Extension of leg at knee joint

105
Q

Vastus medialis

A

Extension of leg at knee joint; stabilizes patella

106
Q

Vastus intermedius

A

Extension of leg at knee joint; articularis genus retracts synovial membrane

107
Q

Gracilis

A

Adducts thigh at hip joint; flexes leg at knee joint

108
Q

Adductor longus

A

Adducts thigh at hip joint and assists in lateral rotation

109
Q

Adductor brevis

A

Adducts thigh at hip joint and assists in lateral rotation

110
Q

Adductor minimus

A

Adduction and lateral rotation of thigh

111
Q

Adductor magnus

A

Adducts thigh at hip joint and assists in lateral rotation; hamstring portion extends thigh at hip joint

112
Q

Obturator externus

A

Laterally rotates thigh at hip joint

113
Q

Biceps femoris

A

Flexes and laterally rotates leg at knee joint; long head also extends thigh at hip joint

114
Q

Semitendinosus

A

Flexes and medially rotates leg at knee joint; extends thigh at hip joint

115
Q

Semimembranosus

A

Flexes and medially rotates leg at knee joint; extends thigh at hip joint

116
Q

Tibialis anterior

A

Extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints; holds up medial longitudinal arch of foot

117
Q

Extensor digitorum longus

A

Extends toes; extends foot at ankle joint

118
Q

Peroneus tertius

A

Extends foot at ankle joint; everts foot at subtalar and transverse tarsal joints

119
Q

Extensor hallucis longus

A

Extends big toe; extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints

120
Q

Extensor digitorum brevis

A

Extends big toe; extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints

121
Q

Peroneus longus

A

Plantar flexes foot at ankle joint; everts foot at subtalar and transverse tarsal joints; supports lateral longitudinal and transverse arches of foot

122
Q

Peroneus brevis

A

Plantar flexes foot at ankle joint; everts foot at subtalar and transverse tarsal joint; supports lateral longitudinal arch of foot

123
Q

Gastrocnemius

A

Plantar flexes foot at ankle joint; flexes knee joint

124
Q

Plantaris

A

Plantar flexes foot at ankle joint; flexes knee joint

125
Q

Soleus

A

Together with gastrocnemius and plantaris is powerful plantar flexor of ankle joint; provides main propulsive force in walking and running

126
Q

Popliteus

A

Flexes leg at knee joint; unlocks knee joint by lateral rotation of femur on tibia and slackens ligaments of joint

127
Q

Flexor digitorum longus

A

Flexes distal phalanges of lateral four toes; plantar flexes foot at ankle joint; supports medial and lateral longitudinal arches of foot

128
Q

Flexor hallucis longus

A

Flexes distal phalanx of big toe; plantar flexes foot at ankle joint; supports medial longitudinal arch of foot

129
Q

Tibialis posterior

A

Plantar flexes foot at ankle joint; inverts foot at subtalar and transverse tarsal joints; supports medial longitudinal arch of foot

130
Q

Abductor hallucis

A

Flexes and abducts big toe; braces medial longitudinal arch

131
Q

Abductor digiti minimi

A

Flexes and abducts fifth toe; braces lateral longitudinal arch

132
Q

Flexor digitorum brevis

A

Flexes lateral four toes; braces medial and lateral longitudinal arches

133
Q

Quadratus plantae

A

Assists flexor digitorum longus in flexing lateral four toes

134
Q

Lumbricals (4)

A

Extends toes at interphalangeal joints

135
Q

Flexor hallucis brevis

A

Flexes metatarsophalangeal joint of big toe; supports medial longitudinal arch

136
Q

Flexor digiti minimi brevis

A

Flexes metatarsophalangeal joint of little toe

137
Q

Adductor hallucis

A

Flexes metatarsophalangeal joint of big toe; holds together metatarsal bones

138
Q

Interossei (4 dorsal)

A

Abduction of toes; flexes metatarsophalangeal joints and extends interphalangeal joints

139
Q

Interossei (3 plantar)

A

Adduction of toes; flexes metatarsophalangeal joints and extends interphalangeal joints

140
Q

Extensor digitorum brevis

A

Extends toes

PT1011 Anatomy (6 decks)

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