Origins and Insertions Flashcards

1
Q

Sternocleidomastoid

A

O: Sternum, Clavicle
I: Mastoid Process

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2
Q

Sternocleidomastoid Function

A

Flexes head side to side, rotates it

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3
Q

Diaphragm

A

O: Sternum, rib cartilage, L
I: Central tendon

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4
Q

Rectus Abdominis

A

O: Pubic crest, symphysis pubis
I: Xiphoid process, interior ribs

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5
Q

Rectus Abdominis Function

A

Flex, exhaling, defecation

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6
Q

External Oblique

A

O: 5-12 Ribs
I: Iliac crest, linea alba, pubis

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7
Q

External Oblique Function

A

Flex, rotate vertebral, compress abdomen

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8
Q

Pectoralis Major

A

O: Clavicle, lower sternum, costal cartilage, external oblique muscles
I: Intertubercular groove

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9
Q

Pectoralis Major Function

A

Internal rotation, adduction, flexion

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10
Q

Latissimus Dorsi

A

O: L, T, iliac crest, sacrum
I: Humerus

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11
Q

Latissimus Dorsi Function

A

Adductor, extensor, internal rotator

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12
Q

Supraspinatus

A

O: Supraspinous fossa
I: Greater tubercle

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13
Q

Supraspinatus Function

A

Stabilize shoulder, adducts

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14
Q

Infraspinatus

A

O: Infraspinous fossa
I: Greater tubercle

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15
Q

Infraspinatus Function

A

Stabilize shoulder, laterally rotates

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16
Q

Teres minor

A

O: Lateral border
I: Greater tubercle

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17
Q

Teres Minor Function

A

Stabilize shoulder, laterally rotates

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18
Q

Subscapularis

A

O: Subscapular fossa
I: Lesser tubercle

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19
Q

Subscapularis Function

A

Stabilizes shoulder, rotates medially

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20
Q

Trapezius

A

O: Nuchal line, C, T
I: Clavicle, scapular spine

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21
Q

Trapezius Function

A

Elevation, adduction, extends neck

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22
Q

Biceps Brachii

A

O: Coracoid process, supraglenoid tubercle
I: Radial tuberosity

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23
Q

Biceps Brachii Function

A

Supinates forearm, flex elbow

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24
Q

Triceps Brachii

A

O: Infraglenoid tubercle
I: Olecranon

25
Q

Triceps Brachii Function

A

Elbow flexor

26
Q

Brachioradialis

A

O: Lateral epicondyle of humerus
I: Styloid process

27
Q

Brachioradialis Function

A

Elbow flexor btwn supination & pronation

28
Q

Gluteus maximus

A

O: Crest of ilium, sacrum, coccyx
I: Greater trochanter

29
Q

Gluteus Maximus Function

A

Hip extension, external rotation

30
Q

Sartorius

A

O: Anterior Superior Iliac Spine
I: Medial tibia

31
Q

Sartorius Function

A

Flexion, outward rotation, flex knee

32
Q

Adductor Longus

A

O: Pubis body
I: Linea aspera

33
Q

Adductor Longus Function

A

Hip adduction

34
Q

Adductor Magnus

A

O: Pubis body, ischial tuberosity
I: Linea aspera, adductor tubercle

35
Q

Adductor Magnus Function

A

Hip adduction, extension

36
Q

Adductor Brevis

A

O: Rumis of pubis
I: Linea aspera, pectineal line

37
Q

Adductor Brevis Function

A

Hip adduction, flexion

38
Q

Pectineus

A

O: Superior ramis of pubis
I: Linea aspera, lesser trochanter

39
Q

Rectus Femoris

A

O: Anterior Interior Iliac Spine
I: Tibial tuberosity, patella

40
Q

Rectus Femoris Function

A

Knee extension, hip flexion

41
Q

Vastus Lateralis

A

O: Greater trochanter, linea aspera
I: Tibial tuberosity, patella

42
Q

Vastus Lateralis Function

A

Knee extension

43
Q

Vastus Intermedius

A

O: Femoral shaft
I: Tibial tuberosity, patella

44
Q

Pectineus Function

A

Hip adduction, flexion

45
Q

Vastus Intermedius Function

A

Knee extension

46
Q

Vastus Medius

A

O: Linea aspera
I: Tibial tuberosity, patella

47
Q

Vastus Medius Function

A

Knee extension

48
Q

Biceps Femoris

A

O: Ischial tuberosity, linea aspera
I: Fibula Head

49
Q

Biceps Femoris Function

A

Hip extensor, flexor, external rotation of knee

50
Q

Semimembranosus & Semitendinosus

A

O: Ischial tuberosity
I: Medial condyle

51
Q

Semimembranosus & Semitendinosus Function

A

Flexes knee, rotates inwards, extends hip

52
Q

Gastrocnemius

A

O: Femoral Condyles
I: Calcaneus

53
Q

Gastrocnemius Function

A

Plantar flexes ankle, flexes knee

54
Q

Soleus

A

O: Upper fibula
I: Calcaneus

55
Q

Soleus Function

A

Plantar flexes ankle

56
Q

Tibialis Anterior

A

O: Tibia
I: 1st metatarsals

57
Q

Tibialis Anterior Function

A

Dorsiflexes ankle, inverts foot

58
Q

Chemical Released in Muscle Cells from AP

A

Acetylcholine

59
Q

Chemicals that block Myosin and Actin from Binding

A

Troponin and tropomyosin