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BIOL 214 > Muscles > Flashcards

Muscles Flashcards

1
Q

What is the origin of the sternocleidomastoid (SCM)?

A

Sternum, Clavicle

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2
Q

What is the insertion of the sternocleidomastoid (SCM)?

A

Mastoid Process

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3
Q

What is the origin of the trapezius?

A

Occipital bone, Cervical & thoracic vertebrae

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4
Q

What is the insertion of the trapezius?

A

Spine of the scapula, Acromion

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5
Q

What is the action of the sternocleidomastoid (SCM)?

A

Flexes and laterally rotates the head

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6
Q

What is the action of the trapezius?

A

Elevates, retracts, and rotates the scapula & extends the head

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7
Q

What is the origin of the rectus abdominis?

A

Pubis

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8
Q

What is the insertion of the rectus abdominis?

A

Sternum, Ribs 5-7

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9
Q

What is the action of the rectus abdominis?

A

Flexes vertebral column

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10
Q

What is the origin of the external oblique?

A

Ribs 5-12, Ilium

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11
Q

What is the insertion of the external oblique?

A

Linea Alba

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12
Q

What is the action of the external oblique?

A

Trunk rotation, Lateral flexion

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13
Q

What is the origin of the internal oblique?

A

Ribs 5-12, Ilium

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14
Q

What is the insertion of the internal oblique?

A

Linea Alba

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15
Q

What is the action of the internal oblique?

A

Trunk rotation, Lateral flexion

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16
Q

What is the origin of the erector spinae?

A

Posterior aspect of sacrum, Iliac Crest

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17
Q

What is the insertion of the erector spinae?

A

Posterior aspect of ribs, alongside the vertebral column

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18
Q

What is the action of the erector spinae?

A

Extension of the vertebral column

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19
Q

What is the origin of the deltoid?

A

Clavicle, Spine of scapula

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20
Q

What is the insertion of the deltoid?

A

Deltoid Tuberosity of humerus

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21
Q

What is the action of the deltoid?

A

Abduction of humerus at the shoulder

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22
Q

What is the origin of the pectoralis major?

A

Clavicle, Sternum

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23
Q

What is the insertion of the pectoralis major?

A

Greater Tubercle of humerus

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24
Q

What is the action of the pectoralis major?

A

At Shoulder: Flexes, Medially rotates and adducts humerus

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25
Q

What is the origin of the latissimus dorsi?

A

Iliac Crest, Lumbar vertebrae, Thoracic vertebrae

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26
Q

What is the insertion of the latissimus dorsi?

A

Intertubercular groove (sulcus) of humerus

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27
Q

What is the action of the latissimus dorsi?

A

At Shoulder: Extends, Medially rotates and adducts humerus

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28
Q

What is the origin of biceps brachii?

A

Coracoid process of scapula, Top of glenoid cavity

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29
Q

What is the insertion of the biceps brachii?

A

Radial tuberosity of radius

30
Q

What is the action of the biceps brachii?

A

Elbow flexion

31
Q

What is the origin of triceps brachii?

A

Bottom of glenoid cavity, Posterior shaft of humerus

32
Q

What is the insertion of triceps brachii?

A

Olecranon process of ulna

33
Q

What is the action of triceps brachii?

A

Elbow extension

34
Q

What is the origin of iliopsoas?

A

Bodies of lumbar vertebrae, Iliac fossa

35
Q

What is the insertion of the iliopsoas?

A

Lesser trochanter of femur

36
Q

What is the action of the iliopsoas?

A

Hip flexion

37
Q

What is the origin of the gluteus maximus?

A

Dorsal aspect of ilium, sacrum, coccyx

38
Q

What is the insertion of the gluteus maximus?

A

Posterior aspect of shaft of femur

39
Q

What is the action of the gluteus maximus?

A

Hip extension

40
Q

What is the origin of the sartorius?

A

ASIS

41
Q

What is the insertion of the sartorius?

A

Medial aspect of proximal tibia

42
Q

What is the action of the sartorius?

A

Flexes, abducts, and laterally rotates hip AND flexes knee

43
Q

What is the origin of the rectus femoris?

A

AIIS

44
Q

What is the insertion of the rectus femoris?

A

Patella –> Tibial Tuberosity

45
Q

What is the action of the rectus femoris?

A

Extends knee (flexes hip)

46
Q

What is the origin of the adductor group?

A

Pubis

47
Q

What is the insertion of the adductor group?

A

Linea Aspera

48
Q

What is the action of the adductor group?

A

Adducts thigh at hip

49
Q

What is the origin of the biceps femoris?

A

Ischial tuberosity

50
Q

What is the insertion of the biceps femoris?

A

Head of fibula

51
Q

What is the action of the biceps femoris?

A

Flexes knee (extends hip)

52
Q

What is the origin of semitendinosus?

A

Ischial tuberosity

53
Q

What is the insertion of the semitendinosus?

A

Medial condyle of tibia

54
Q

What is the action of the semitendinosus?

A

Flexes knee (extends hip)

55
Q

What is the origin of the semimembranosus?

A

Ischial tuberosity

56
Q

What is the insertion of the semimembranosus?

A

Medial condyle of tibia

57
Q

What is the action of the semimembranosus?

A

Flexes knee (extends hip)

58
Q

What is the origin of the gastrocnemius (calf)?

A

Medial and lateral condyles of femur

59
Q

What is the insertion of the gastrocnemius (calf)?

A

Calcaneous

60
Q

What is the action of the gastrocnemius (calf)?

A

Plantarflexion

61
Q

What is the origin the tibialis anterior?

A

Lateral condyle and shaft of tibia

62
Q

What is the insertion of the tibialis anterior?

A

1st Metatarsal

63
Q

What is the action of the tibialis anterior?

A

Dorsiflexion

64
Q

What muscles make up what we know as the hamstrings?

A

Biceps femoris, Semitendinosus, Semimembranosus

65
Q

What muscle performs the action “winking”?

A

Orbicularis Oculi

66
Q

What muscle performs the action “chewing”?

A

Temporalis Masseter

67
Q

What muscle performs the action “smiling”?

A

Zygomatic

68
Q

What muscle performs the action “head flexion”?

A

SCM

69
Q

What muscle performs the action “vertebral column extension”?

A

Erector spinae

70
Q

What muscle performs the action “vertebral column flexion”?

A

Rectus abdominis

71
Q

What muscle performs the action “adduction of scapulae”?

A

Trapezious

BIOL 214 (1 decks)

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