Muscles Flashcards

1
Q

What does the Orbicularis Oculi do?

A

Compresses eyes

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2
Q

What does the Masseter so?

A

Elevates mandible/ closes jaw.

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3
Q

What does the Sternocleidomastoid do?

A

Neck flexion, head rotation.

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4
Q

What does the Rectus abdominis do?

A

Flexes vertebral column, compresses abdomen, depresses ribs.

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5
Q

What does the external oblique do?

A

Compresses abdomen, depresses ribs, lateral flexion and rotation of vertebral column.

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6
Q

What does the rhomboid major do?

A

Adducts and rotates scapula.

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7
Q

What does the Trapezius do?

A

Extend neck; elevate, depress or rotate scapula.

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8
Q

What does the deltoid do?

A

Abducts and rotates arm; arm flexion and extension.

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9
Q

What does the Latissimus Dorsi do?

A

Extends, adducts, and medially rotates arm.

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10
Q

What does the Pectoralis Major do?

A

Flexes, adducts, and medially rotates arm.

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11
Q

What does the Teres Major do?

A

Extends and medially rotates arm.

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12
Q

What does the Supraspinatus do?

A

Abducts arm.

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13
Q

What does the Infraspinatus do?

A

Laterally rotates arm.

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14
Q

What does the Biceps Brachii do?

A

Supinates forearm; flexes elbow and shoulder.

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15
Q

What does the Brachialis do?

A

Flexes elbow.

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16
Q

What does the Triceps Brachii do?

A

Extends elbow; extends and adducts arm.

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17
Q

What does the Flexor Carpi Radialis do?

A

Flexes and abducts wrist.

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18
Q

What does the Flexor Carpi Ulnaris do?

A

Flexes and adducts wrist.

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19
Q

What does the Extensor Digitorum do?

A

Extends fingers and wrists.

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20
Q

What does the Extensor Carpi Ulnaris do?

A

Extends and adducts wrist.

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21
Q

What does the Adductor Longus do?

A

Adducts, flexes and medially rotates thigh.

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22
Q

What does the Psoas Major do?

A

Flexes thigh; flexes vertebral column.

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23
Q

What does the Gracilis do?

A

Adducts and medially rotates thigh; flexes knee.

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24
Q

What does the Orbicularis Oris do?

A

Compresses lips

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25
Q

What does the Sartorius do?

A

Flexes, abducts and laterally rotates thigh; flexes knee.

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26
Q

What does the Rectus Femoris do?

A

Flexes thigh; extends knee.

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27
Q

What does the Vastus Lateralis do?

A

Extends knee.

28
Q

What does the Vastus Medialis do?

A

Extends knee.

29
Q

What does the Gluteus Maximus do?

A

Extends, abducts and laterally rotates thigh.

30
Q

What does the Gluteus Medius do?

A

Abducts and medially rotates thigh.

31
Q

What does the Biceps Femoris do?

A

Extends and laterally rotates thigh; flexes knee.

32
Q

What does the Semimembranosous do?

A

Extends and medially rotates thigh; flexes knee.

33
Q

What does the Semitendinosus do?

A

Extends and medially rotates thigh; flexes knee.

34
Q

What does the Gastrocnemius do?

A

Plantarflexion; flexes knee.

35
Q

What does the Tibialis Anterior do?

A

Dorsiflexion.

36
Q

What is the origin of the Masseter?

A

Zygomatic arch

37
Q

What is the insertion of the Masseter?

A

Lateral surface and angle of mandibular ramus.

38
Q

What is the origin of the Sternocleidomastoid?

A

Sternal end of clavicle and manubrium.

39
Q

What is the insertion of the Sternocleidomastoid?

A

The mastoid.

40
Q

What is the origin of the Deltoid?

A

Acromium and spine of clavicle and scapula.

41
Q

What is the insertion of the Deltoid?

A

Deltoid tuberosity

42
Q

What is the origin of the Pectoralis Major?

A

Cartilages of ribs 2-6, body of sternum, medial portion of clavicle.

43
Q

What is the insertion of the Pectoralis Major?

A

Greater tubercle and lateral intertubecular sulcus.

44
Q

What is the origin of the Biceps Brachii?

A

Coracoid process and supraglenoid tubercle.

45
Q

What is the insertion of the Biceps Brachii?

A

Radial tuberosity.

46
Q

What is the origin of the Triceps Brachii?

A

Superior, lateral margin of humerus, posterior surface of humerus.

47
Q

What is the insertion of the Triceps Brachii?

A

Olecranon of ulna.

48
Q

What is the origin of the Flexor Carpi Radialis?

A

Medial epicondyle of humerus.

49
Q

What is the insertion of the Flexor Carpi Radialis?

A

Bases of 2nd and 3rd metacarpal bones.

50
Q

What is the origin of the Extensor Digitorum?

A

Lateral epicondyle of humerus.

51
Q

What is the insertion of the Extensor Digitorum?

A

Posterior surfaces of the phalanges, digits 2-5.

52
Q

What is the origin of the Gluteus Medius?

A

Anterior iliac crest, lateral surface of ilium.

53
Q

What is the insertion of the Gluteus Medius?

A

Greater trochanter of femur.

54
Q

What is the origin of the Psoas Major?

A

Lumbar vertebrae.

55
Q

What is the insertion of the Psoas Major?

A

Lesser trochanter in company with iliacus.

56
Q

What is the origin of the Sartorius?

A

Anterior superior iliac spine.

57
Q

What is the insertion of the Sartorius?

A

Medial proximal of tibia near tibial tuberosity.

58
Q

What is the origin of the Semimembranosus?

A

Ischial tuberosity.

59
Q

What is the insertion of the Semimembranosus?

A

Posterior surface of medial condyle of tibia.

60
Q

What is the origin of the Vastus Lateralis?

A

Anterior and inferior to greater trochanter of femur and along linea aspera.

61
Q

What is the insertion of the Vastus Lateralis?

A

Tibial Tuberosity

62
Q

What is the origin of the Gastrocnemius?

A

Femoral condyles.

63
Q

What is the insertion of the Gastrocnemius?

A

Calcaneus

64
Q

What is the origin of the Tibialis Anterior?

A

Lateral condyle and proximal shaft of tibia.

65
Q

What is the insertion of the Tibialis Anterior?

A

Base of first metatarsal bone and medial cuneiform.