Muscles Flashcards

1
Q

Occipitofrontalis

A

Look of surprise, FACIAL NERVE VII

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2
Q

Orbicularis oculi

A

closes eye FACIAL NERVE VII

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3
Q

Orbicularis oris

A

closes and protrudes lips, shapes lips during speech,FACIAL NERVE VII

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4
Q

Zygomaticus major

A

smiles, FACIAL NERVE VII

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5
Q

Zygomaticus minor

A

Raises upper lip, snarl, FACIAL NERVE VII

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6
Q

Levator labii superioris

A

Raises upper lip, snarl(‘s’ in ‘superior’ stands for ‘snarl’), FACIAL NERVE VII

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7
Q

Levator anguli oris

A

opens mouth, lateral & inerior (deep), FACIAL NERVE VII

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8
Q

Depressor labii inferioris

A

Depresses lower lips (deep to angui oris-kory’s face pout), FACIAL NERVE VII

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9
Q

Depressor anguli oris

A

opens mouth, lateral & inerior, FACIAL NERVE VII

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10
Q

Buccinator

A

whistling, blowig, sucking (sucking pookinator’s cl**t), FACIAL NERVE VII

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11
Q

Risorious

A

grimacing, lateral, ‘reins of horse’, FACIAL NERVE VII

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12
Q

Mentalis

A

pouting, FACIAL NERVE VII

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13
Q

Platysma

A

depresses mandible +normal pouts, FACIAL NERVE VII

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14
Q

Masseter

A

Elevates Mandible, closes mouth,Mandibular Division of Trigeminal Nerve (V)

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15
Q

Temporalis

A

Elevates/Retracts Mandible, Mandibular Division of Trigeminal Nerve (V)

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16
Q

Medial pterygoid

A

Mandible side-side movement, protrudes, Mandibular Division of Trigeminal Nerve (V)

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17
Q

Lateral pterygoid

A

Protracts madible, depresses mandible as in opening mouth, Mandibular Division of Trigeminal Nerve (V)

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18
Q

Digastric

A

Elevates hyoid bone, RMA:depresses mandible/opens mouth, *Anterior-mandibular division of TRIGEMINAL, *Posterior- FACIAL NERVE VII)

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19
Q

Stylohyoid

A

elevates hyoid bone and draws it posteriorly, Facial Nerve (VII)

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20
Q

Mylohyoid

A

elevates hyoid and floor of mouth, depresses mandible, Mandibular division of Trigeminal (V)

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21
Q

Omohyoid

A

depresses hyoid bone, C1-C3

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22
Q

Sternothyroid

A

depresses thyroid cartilage of layrnx, C1-C3

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23
Q

Thyrohyoid

A

elevates thyroid cartilage, C1-C2

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24
Q

Sternocleidomastoid

A

Laterally rotate and flex head to opposite side of contracting muscle, C2-C3, motor supple? =accessory nerve IX

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25
Q

Splenis capitus

A

bilateral=extend head, unilaterally=laterally flex,rotate head to opposite side as contracting muscle, Middle cervical nerves

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26
Q

Splenis cervicis

A

same as above (connects lower than head, thin, deep), inferior cervical nerves, inferior cervical nerves

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27
Q

Semispinalis capitus

A

bilateral= extend head, unilateral =opposite contracting muscle(right next to spine), cervical and thoracic spinal nerves.

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28
Q

Spinalis

A

extend vertebral column + extend head, cervical and superior thoracic nerves

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29
Q

Longissimus

A

Extend trunk, laterally flex, Cervical and thoracic nerves

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30
Q

Iliocostalis

A

extend and maintain erect posture, laterally flex to same side as contracting muscle., Cervical, Lumbar and thoracic nerves

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31
Q

Rectus abdominis

A

Flexes abdomin,flexes pelvis on vert column, flexes lumbar vert column, thoracic spinal nerves T7-T12

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32
Q

External oblique

A

rotate vert column, compress abdomin,laterally flex vert column, T7-T12

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33
Q

Internal oblique

A

same as above, T8-T12

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34
Q

Transversus abdominis

A

Compresses Abdomin, T8-T12

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35
Q

Quadratus lumborum

A

Together-pull 12th ribs interiorly during forced exhalation, fix 12th ribs, L1-L3, T12

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36
Q

Diaphragm

A

Contraction=flatten, increases dimension of Thoracic cavity/inhalation. Relaxation=superiorly, exhalation, C3-C5 and phrenic nerve

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37
Q

Exteranl intercostal

A

Contraction=elevate ribs, T2-T12

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38
Q

Internal intercostal

A

Contraction draws adjacent ribs together., T2-T12

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39
Q

Innermost intercostal

A

Contraction draws adjacent ribs together., T2-T13

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40
Q

Pectoralis minor

A

Rotates scap downward, abducts, Medial Pectoral Nerve

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41
Q

Serratus anterior

A

Abducts scap and rotates it upward ‘winging’ muscle. Abducts humerous above 90, long thoracic nerve

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42
Q

Trapezius

A

Superior-rotat scap, middle- adduct scap, inferior-depress and upward rotate scap. Stabilizes scab, C3-C5 & Accessory Nerve( XI)

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43
Q

Levator scapulae

A

Elevates Scap and rotates it downward, Dorsal Scap nerve C3-C5

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44
Q

Rhomboid major

A

Elevates and adducts scap and rotate it downward, stabilizes scap, Dorsal Scap nerve

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45
Q

Rhomboid minor

A

Elevates and adducts scap and rotate it downward, stabilizes scap, Dorsal Scap nerve

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46
Q

Pectoralis major

A

Adducts + medially rotates arm at shoulder joint, clavicular head flexes arm, sternocostal head extends the flexed arm to trunk, Medial and Lateral pectoral nerves

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47
Q

Deltoid

A

Abduct arm, greater than 15degrees, post. Fibers extend and laterally rotate arm, Axillary nerve

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48
Q

Latissimus dorsi

A

Extends, adducts and medially rotates arm at shoulder joint, inferiorally and posteriorally, Thoracodorsal nerve

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49
Q

Teres major

A

Extends arm, adduction and medial rotation, Lower Subscap nerve

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50
Q

Coracobrachialis

A

Flexes and adducts arm at shoulder, musculocutaneous

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51
Q

Subscapularis**

A

Medially rotates arm, upper and lower SubScap nerve

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52
Q

Supraspinatus

A

Asssts deltoid muscle, suprascap nerve

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53
Q

Infraspinatus

A

laterally rotates arm, suprascap nerve

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54
Q

Teres minor

A

laterally rotates and extends arm at shoulder, axillary nerve

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55
Q

Biceps brachii

A

Flexes forearm @ elbow joing, supinates forearm at radioulunar joints, and flexes arm at shoulder joint., Musculocutaneous nerve

56
Q

Brachialis

A

Main flexor of forearm, Musculocutaneous nerve and radial nerve

57
Q

Brachioradialis

A

Flexes forearm at elbow joint, supinates and pronates forearm at radiolunar joint, Musculocutaneous and Radial Nerve

58
Q

Triceps brachii

A

Extends forearm at elbow, extends arm at shoulder, Radial Nerve

59
Q

Anconeus

A

Extends forearm at elbow., Radial Nerve

60
Q

Pronator teres

A

Pronates forearm at radioulnar joint and weakly flexes forearm (index finger), Median Nerve

61
Q

Pronator quadratus

A

Pronates forearm at radioulnar joint and weakly flexes forearm, Median Nerve

62
Q

Supinator

A

Supinates forearm at radioulnar,Deep radial nerve

63
Q

Flexor carpi radialis

A

Flexes and abducts hand at wrist (middle finger), Median Nerve

64
Q

Palmaris longus

A

Weakly flexes hand at wrist joint (ring finger), Median Nerve

65
Q

Flexor carpi ulnaris

A

Flexes and adducts hand at wrist (pinky finger), Ulnar Nerve

66
Q

Flexor digitorum

A

Flexes middle phalanx of each finger, hand at wrist, Median Nerve

67
Q

Flexor pollicis longus

A

Flexes distal phalanx of thumb, Median Nerve

68
Q

Flexor digitorum profundus

A

Flexes distal & middle phalanges of each finger @ I.P. joints, proximal phalanx of each finger at MCP joint, hand at wrist. Goes furthest, deepest. Median and Unlar Nerve

69
Q

Extensor carpi radialis longus

A

Extends and abducts hand at wrist, Median and Unlar Nerve

70
Q

Extensor carpi radialis brevis

A

Extends and abducts hand at wrist, Radial Nerve

71
Q

Extensor digitorum

A

extends distal andmiddle phalanges of each finger, proximal phalanx of each at mcp joint, hand at wrist, Radial Nerve

72
Q

Extensor digiti minimi

A

extends proximal phalanx & and hand @ wrist, Deep radial Nerve

73
Q

Extensor carpi ulnaris

A

Extends and adducts hand at wrist, Deep radial Nerve

74
Q

Abductor pollicis longus

A

Abducts and extends thumb (tendon connects most proximally outta the 3), Deep radial Nerve

75
Q

Extensor pollicis brevis

A

Extends proximal phalanx of thumb at mcp, Deep radial Nerve

76
Q

Extensor pollicis(thumb) longus

A

Extends distal phalanx of thumb, Deep radial Nerve

77
Q

Extensor indicis

A

Extends distal and middle phalanges of index, Deep radial Nerve

78
Q

Abductor pollicis brevis

A

Abducts thumb at carpometacarpal joint(meat of thumb), Median Nerve

79
Q

Opponens pollicis

A

moves thumb across palm to meet any finger, Median Nerve

80
Q

Flexor pollicis brevis

A

Flexes thumb at CMC joint, Median Nerve

81
Q

Adductor pollicis

A

Adducts thumb at CMC and MCP joints, Ulnar Nerve

82
Q

Adductor digiti minimi

A

Abducts and flexes little finger at MCP joint, Ulnar Nerve

83
Q

Flexor digiti minimi brevis

A

Flexes little finger at CMC and MCP joints, Ulnar Nerve

84
Q

Opponens digiti minimi

A

Moves little finger across palm, Ulnar Nerve

85
Q

Lumbricals

A

Flex each finger at MCP joints and extends each finger at IP joints (superficial to interossi), Median and Ulnar nerve

86
Q

Palmar interossei

A

Adduct and flex each finger except the middle finger at MCP joints, Ulnar Nerve

87
Q

Dorsal interossei

A

Abduct fingers 2-4 at MCP joints, flex fingers 2-4 at MCP joints and extend each finger at IP joints, Ulnar Nerve

88
Q

Iliopsoas

A

Psoas major and Iliacus Muscles acting together flex thigh at hip joint, rotate thigh laterally, and flex trunk on the hip as in sitting up from the supine position,Lumbar Spinal, Femoral Nerve

89
Q

Gluteus maximus

A

Extends thigh at hip joint and laterally rotates thigh, Inferior gluteal nerve

90
Q

Gluteus medius

A

Abducts thigh at hip, medially rotates thigh, superior gluteal

91
Q

Gluteus minimus

A

Abducts thigh at hip and medially rotates thigh, Superior gluteal nerve

92
Q

Tensor fasciae latae

A

Flexes and abducts thigh at hip joint, Superior gluteal nerve

93
Q

Piriformis

A

Laterally rotates and abducts thighSacral spinal nerves S1 or S2,

94
Q

Obturator internus

A

Laterally rotates and abducts thigh, Nerve to obturator

95
Q

Obturator externus

A

Laterally rotates and abducts thigh, Obturator Nerve

96
Q

Superior gemellus

A

Laterally rotates and abducts thigh, Nerve to obturator internus

97
Q

Inferior gemellus

A

Laterally rotates and abducts thigh, Nerve to quadratus femoris

98
Q

Quadratus femoris

A

Laterally rotates and stabilizes hip joint, Nerve to quadratus femoris

99
Q

Adductor longus

A

Adducts and flexes thigh, Obturator Nerve

100
Q

Adductor brevis

A

Adducts and flexes thigh at hip, rotates thigh, Obturator Nerve

101
Q

Adductor magnus

A

Adducts thigh at hip joint and rotates thigh, anterior part flexes thigh at hip, posterior part extends thigh at hip, Obturator Nerve

102
Q

Pectineus

A

Flexes and adducts thigh, **FEMORAL

103
Q

Gracilis

A

Adducts thigh andmedially rotates thigh, flexes leg at knee, Obturator Nerve

104
Q

Sartorius

A

Indian style sitting. Weakly flexes leg at knee joint, weakly flexes abducts and laterally rotates thigh at thigh. Femoral Nerve

105
Q

Rectus femoris

A

Extend leg at knee, rectus alone also flexes thigh at hip. Femoral Nerve

106
Q

Vastus lateralis

A

Extend leg at knee, rectus alone also flexes thigh at hip. Femoral Nerve

107
Q

Vastus medialis

A

Extend leg at knee, rectus alone also flexes thigh at hip. Femoral Nerve

108
Q

Vastus intermedius

A

Extend leg at knee, rectus alone also flexes thigh at hip. Femoral Nerve

109
Q

Biceps femoris

A

Flexes leg at knee, extends thigh at hip, Tibial and common fibular nerves from Sciaatic

110
Q

Semitendinosus

A

Flexes leg at knee, extends thigh at hip, Tibial Nerve from Sciatic

111
Q

Semimembranosus

A

Flexes leg at knee, extends thigh at hip, Tibial Nerve from Sciatic

112
Q

Tibialis anterior

A

Dorsiflexes foot and INVERTS, Deep fibular (peroneal)

113
Q

Extensor hallucis(big toe) longus

A

Dorsiflexes foots and extends proximal phalanx of great toe at MTP, Deep fibular

114
Q

Extensor digitorum longus

A

Dorsiflexes foot and extends distal & middle phalanges of each toe at IP joints and proximal Phalanx of each toe, Deep fibular

115
Q

Fibularis tertius

A

Dorsiflexes foot and EVERTS, Deep fibular

116
Q

Fibularis longus

A

Plantar flexes foot and EVERTS, Superficial Fibular

117
Q

Fibularis brevis

A

Plantar flexes foot and EVERTS, Superficial Fibular

118
Q

Gastrocnemius

A

Plantar flexes foot, flexes leg at Knee, Tibial Nerve

119
Q

Soleus

A

Plantar flexes foot at ankle joint, Tibial Nerve

120
Q

Plantaris

A

Plantar flexes foot at ankle joint and flexes leg at Knee (tiny muscle-long tendon). Tibial Nerve

121
Q

Popliteus

A

Flexes leg at knee and medially rotates tibia to unlock extended knee( scratch calf w/ back of opposite heel). Tibial Nerve

122
Q

Tibialis posterior

A

Plantar flexes foot at ankle joint (deep center) Tibial Nerve

123
Q

Flexor digitorum longus

A

Plantar flexes foot, flexes distal and middle phalanges of each toe at IP joints and proximal phalanx of each toe at MTP joint (lots of work = attached to biggest bone). Tibial Nerve

124
Q

Flexor hallucis longus

A

Plantar flexe, flexes distal phalanx of great toe at IP joint and proximal phalanx of great toe at MTP joint, Tibial Nerve

125
Q

Extensor hallucis brevis

A

Extends great toe at MTP, Deep fibular

126
Q

Extensor digitorum brevis

A

Extends toes 2-4 at IP, Deep fibular

127
Q

Abductor hallucis

A

Abducts and flexes great toe at MTP, Medial plantar

128
Q

Flexor hallucis brevis

A

Flexes great toe, Medial plantar

129
Q

Adductor hallucis

A

Adducts and flexes great toe (medial), Medial plantar

130
Q

Flexor digitorum brevis

A

Flexes toes 2-5 at proximal IP and MTP, Medial plantar

131
Q

Abductor digiti minimi

A

Abducts and flexes little toe (lateral), Lateral Plantar

132
Q

Flexor digiti minimi brevis

A

Flexes little toe at MTP, Lateral Plantar

133
Q

Quadratus plantae

A

Assists flexor digitorum longus to only flex toes 2-5, Lateral Plantar

134
Q

Lumbricals

A

Extend toes 2-5 at IP joints and flex toes 2-5 at MTP (4), Medial and Lateral

135
Q

Dorsal interossei

A

flexes at MTP joint (4), Deep plantar

136
Q

Plantar interossei

A

Extends IP joints (3), Deep lateral plantar nerve