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Bio 241 > Muscle Practical-Actions, Origins, Insertions > Flashcards

Muscle Practical-Actions, Origins, Insertions Flashcards

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1
Q

Frontalis

A

action: raises eyebrows

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2
Q

Masseter

A

action: elevates mandible origin: zygomatic arch and maxilla insertion: ramus of mandible

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3
Q

occipitalis

A

action: pulls the scalp posteriorly

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4
Q

orbicularis oculi

A

action: closes eye

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5
Q

orbicularis oris

A

action: purses lips

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6
Q

sternocleidomastoid

A

action: flexion of head origin: manubrium of sternum and clavicle insertion: mastoid process

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7
Q

temporalis

A

action: elevates mandible

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8
Q

zygomaticus major

A

action: elevates and draws angle of mouth laterally

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9
Q

diaphragm

A

Action: prime mover of inspiration Origin: Inferior internal surface of rib cage and sternum Insertion: Central tendon

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10
Q

rectus abdominis

A

Action: compresses abdomen Origin: Pubic bone Insertion: ribs and xiphoid process

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11
Q

external oblique

A

Action: lateral flexion and rotation of vertebral column

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12
Q

internal oblique

A

action: lateral flexion and rotation of vertebral column

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13
Q

transversus abdominis

A

action: compression of abdomen

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14
Q

Pectoralis major

A

Origin: Clavicle, sternum, cartilages of ribs Insertion: Intertubercular sulcus of humerus Action: Adduction of shoulder

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15
Q

Pectoralis minor

A

Origin: Ribs Insertion: Coracoid process of scapula Action: Protracts scapula

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16
Q

Latissimus dorsi

A

Origin Spinous processes of thoracic vertebrae, iliac crest and ribs. Insertion: Intertubercular sulcus of humerus Action: Adducts arm

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17
Q

Serratus anterior

A

Origin: Ribs Insertion: Vertebral border of scapula Action: Protracts scapula

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18
Q

Teres Major

A

Origin: Inferior angle of scapula Insertion: Intertubercular sulcus of humerus Action: Adducts arm

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19
Q

External intercostals

A

Action: Elevate rib cage

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20
Q

Rhomboid major

A

Action: Retracts scapula

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21
Q

Trapezius

A

Origin: Occipital bone and spinous processes of thoracic vertebrae Insertion: Clavicle and acromion process of scapula Action: Retracts scapula

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22
Q

Erector spinae

A

straightens back

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23
Q

Deltoid

A

Origin: Clavicle and acromion process of scapula Insertion: Deltoid tuberosity of humerus Action: abduction of arm

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24
Q

Supraspinatus

A

Origin: Supraspinous fossa of scapula Insertion: Greater tubercle of humerus Action: Abduction of arm

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25
Q

Infraspinatus

A

Origin: Infraspinous fossa of scapula Insertion: Greater tubercle of humerus Action: Adducts arm

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26
Q

Teres minor

A

Origin: Lateral margin of scapula Insertion: Greater tubercle of humerus Action: Adducts arm

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27
Q

Subscapularis

A

Origin: Subscapular fossa of scapula Insertion: Lesser tubercle of humerus Action: Medially rotates arm

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28
Q

Triceps brachii

A

Origin: Infraglenoid tubercle and posterior humerus Insertion: Olecranon process of ulna Action: Extends forearm

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29
Q

Biceps brachii

A

Origin: Supraglenoid tubercle and coracoid process of scapula Insertion: Radial tuberosity Action: Flexes forearm

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30
Q

Brachialis

A

Action: Flexes forearm

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31
Q

Brachioradialis

A

Action: Flexes forearm

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32
Q

Flexor carpi radialis

A

Action: Flexor of wrist

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33
Q

Flexor carpi ulnaris

A

Action: flexor of wrist

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34
Q

Palmaris longus

A

Action: Flexes wrist

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35
Q

Extensor digitorum

A

Action: Extends wrist

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36
Q

Extensor carpi radialis brevis

A

Action: Extends wrist

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37
Q

Extensor carpi radialis longus

A

Action: Extends wrist

38
Q

Extensor carpi ulnaris

A

Action: Extends wrist

39
Q

Coracobrachialis

A

Action: Flexion of humerus

40
Q

Tensor fascia latae

A

Action: abducts thigh

41
Q

Rectus femoris

A

Origin: iliac spine Insertion: tibial tuberosity Action: Extends leg

42
Q

Vastus lateralis

A

Origin: Greater trochanter, linea aspera Insertion: tibial tuberosity Action: Extends leg

43
Q

Vastus medialis

A

Origin: linea aspera, intertrochanteric line Insertion: tibial tuberosity Action: Extends leg

44
Q

Sartorius

A

Origin: Anterior superior iliac spine Insertion: Medial & proximal tibia Action: Flexes thigh

45
Q

Gracilis

A

flexes thigh

46
Q

Adductor longus

A

Adducts thigh

47
Q

Gluteus maximus

A

Origin: Iliac crest, sacrum, and coccyx Insertion: Gluteal tuberosity of femur and iliotibial tract Action: Extends thigh

48
Q

Gluteus medius

A

Abducts thigh

49
Q

Gluteus minimus

A

Abducts thigh

50
Q

Adductor magnus

A

Adducts thigh

51
Q

Semimembranosus

A

Origin: Ischial tuberosity Insertion: Medial condyle of tibia Action: Extends thigh

52
Q

Semitendinosus

A

Origin: Ischial tuberosity Insertion: Tibial shaft Action: Extends thigh

53
Q

Biceps Femoris

A

Origin: Ischial tuberosity Insertion: Head of fibula Action: Extends thigh

54
Q

Iliacus

A

Flexes thigh

55
Q

Psoas Major

A

Flexes thigh

56
Q

Pectineus

A

Adducts thigh

57
Q

Iliotibial tract IT band

A

extends thigh

58
Q

Gastrocnemius

A

Origin: Medial and lateral condyles of femur Insertion: Calcaneus Action: Plantar flexion of foot

59
Q

Soleus

A

Action: Plantar flexion of foot Origin: Proximal posterior tibia and fibula Insertion: Calcaneus

60
Q

Fibularis longus

A

Plantar flexion of foot

61
Q

Tibialis anterior

A

Origin: Lateral condyle of tibia Insertion: 1st metatarsal Action: Dorsiflexion

62
Q

Flexor digitorum longus

A

plantar flexion

63
Q

Extensor digitorum longus

A

Extends toes 2-5

64
Q

Fibularis brevis

A

Plantar flexes

65
Q

action: elevates mandible origin: zygomatic arch and maxilla insertion: ramus of mandible

A

Masseter

66
Q

action: flexion of head origin: manubrium of sternum and clavicle insertion: mastoid process

A

sternocleidomastoid

67
Q

Action: prime mover of inspiration Origin: Inferior internal surface of rib cage and sternum Insertion: Central tendon

A

diaphragm

68
Q

Action: compresses abdomen Origin: Pubic bone Insertion: ribs and xiphoid process

A

rectus abdominis

69
Q

Origin: Clavicle, sternum, cartilages of ribs Insertion: Intertubercular sulcus of humerus Action: Adduction of shoulder

A

Pectoralis major

70
Q

Origin: Ribs Insertion: Coracoid process of scapula Action: Protracts scapula

A

Pectoralis minor

71
Q

Origin Spinous processes of thoracic vertebrae, iliac crest and ribs. Insertion: Intertubercular sulcus of humerus Action: Adducts arm

A

Latissimus dorsi

72
Q

Origin: Ribs Insertion: Vertebral border of scapula Action: Protracts scapula

A

Serratus anterior

73
Q

Origin: Inferior angle of scapula Insertion: Intertubercular sulcus of humerus Action: Adducts arm

A

Teres Major

74
Q

Origin: Occipital bone and spinous processes of thoracic vertebrae Insertion: Clavicle and acromion process of scapula Action: Retracts scapula

A

Trapezius

75
Q

Origin: Clavicle and acromion process of scapula Insertion: Deltoid tuberosity of humerus Action: abduction of arm

A

Deltoid

76
Q

Origin: Supraspinous fossa of scapula Insertion: Greater tubercle of humerus Action: Abduction of arm

A

Supraspinatus

77
Q

Origin: Infraspinous fossa of scapula Insertion: Greater tubercle of humerus Action: Adducts arm

A

Infraspinatus

78
Q

Origin: Lateral margin of scapula Insertion: Greater tubercle of humerus Action: Adducts arm

A

Teres minor

79
Q

Origin: Subscapular fossa of scapula Insertion: Lesser tubercle of humerus Action: Medially rotates arm

A

Subscapularis

80
Q

Origin: Infraglenoid tubercle and posterior humerus Insertion: Olecranon process of ulna Action: Extends forearm

A

Triceps brachii

81
Q

Origin: Supraglenoid tubercle and coracoid process of scapula Insertion: Radial tuberosity Action: Flexes forearm

A

Biceps brachii

82
Q

Origin: iliac spine Insertion: tibial tuberosity Action: Extends leg

A

Rectus femoris

83
Q

Origin: Greater trochanter, linea aspera Insertion: tibial tuberosity Action: Extends leg

A

Vastus lateralis

84
Q

Origin: linea aspera, intertrochanteric line Insertion: tibial tuberosity Action: Extends leg

A

Vastus medialis

85
Q

Origin: Anterior superior iliac spine Insertion: Medial & proximal tibia Action: Flexes thigh

A

Sartorius

86
Q

Origin: Iliac crest, sacrum, and coccyx Insertion: Gluteal tuberosity of femur and iliotibial tract Action: Extends thigh

A

Gluteus maximus

87
Q

Origin: Ischial tuberosity Insertion: Medial condyle of tibia Action: Extends thigh

A

Semimembranosus

88
Q

Origin: Ischial tuberosity Insertion: Tibial shaft Action: Extends thigh

A

Semitendinosus

89
Q

Origin: Ischial tuberosity Insertion: Head of fibula Action: Extends thigh

A

Biceps Femoris

90
Q

Origin: Medial and lateral condyles of femur Insertion: Calcaneus Action: Plantar flexion of foot

A

Gastrocnemius

91
Q

Action: Plantar flexion of foot Origin: Proximal posterior tibia and fibula Insertion: Calcaneus

A

Soleus

92
Q

Origin: Lateral condyle of tibia Insertion: 1st metatarsal Action: Dorsiflexion

A

Tibialis anterior

Bio 241 (10 decks)

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