Top 20 on Muscle Chart

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created 9 years ago by kategre18
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updated 9 years ago by kategre18
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1

Origin of Pectoralis Major

clavicle, sternum, & cartilage of ribs 1-6 (or 7)

2

Insertion of Pectoralis Major

humerus

3

Action of Pectoralis Major

prime mover of arm flexion; adducts & medially rotates arm

4

Origin of External Oblique

anterior surface of last 8 ribs

5

Insertion of External Oblique

pubic crest, tubercles, & iliac crest
(linea alba)

6

Action of External oblique

flexes and rotates vertebral column & compresses abdominal wall

7

Origin of Serratus Anterior

lateral aspect of ribs 1-8 (or 9)

8

Insertion of Serratus Anterior

vertebral border of anterior surface of scapula

9

Action of Serratus Anterior

prime mover to protract & hold scapula against chest wall; rotates scapula

10

Origin of Sternocleidomastoid

manubrium of sternum & medial portion of clavicle

11

Insertion of Sternocleidomastoid

mastoid process of temporal bone & superior nuchal line of occipital bone

12

Action of Sternocleidomastoid

flexion of neck forward & rotate head towards shoulder on opposite side

13

Origin of Masseter

zygomatic arch & maxilla

14

Insertion of Masseter

Angle of ramus of mandible

15

Action of Masseter

prime mover of jaw closure

16

Origin of Biceps Brachii-Short head

coracoid process

17

Origin of Biceps Brachii -Long head

tendon runs in intertubercular sulcus & within capsule of shoulder joint

18

Insertion of Biceps Brachii

radial tuberosity

19

Action of Biceps Brachii

flexion (powerful) of elbow & supination of forearm

20

Origin of Triceps Brachii - Long head

inferior margin of glenoid cavity

21

Origin of Triceps Brachii - lateral head

posterior humerus

22

Origin of Triceps Brachii - medial head

distal radial groove on posterior humerus

23

Insertion of Triceps Brachii

olecranon process of ulna

24

Action of Triceps Brachii

powerful forearm extensor

25

Origin of Brachialis

distal portion of anterior humerus

26

Insertion of Brachialis

coronoid process of ulna

27

Action of Brachialis

major flexor of the arm

28

Origin of Extensor Digitorum

lateral epicondyle of humerus

29

Insertion of Extensor Digitorum

distal phalanges of fingers 2-5 *by four tendons

30

Action of Extensor Digitorum

prime mover of finger extension

31

Origin of Flexor Carpi Radialis

medial epicondyle of humerus

32

Insertion of Flexor Carpi Radialis

Base of metacarpals 2 & 3

33

Action of Flexor Carpi Radialis

powerful flexor of wrist & abducts hand

34

Origin of Gluteus Maximus

Dorsal ilium, sacrum, & coccyx

35

Insertion of Gluteus Maximus

gluteal tuberosity of femur & iliotibial tract (IT band)

36

Action of Gluteus Maximus

powerful thigh extensor

37

Origin of Adductor Magnus

ischial pubic rami & ischial tuberosity

38

Insertion of Adductor Magnus

linea aspera & adductor tubercle of femur

39

Action of Adductor Magnus

adduct & medially rotate & flex thigh

40

Origin of Biceps Femoris

Ischial tuberosity (long head) & linea aspera & distal femur (short head)

41

Insertion of Biceps Femoris

head of fibula & lateral condyle of tibia

42

Action of Biceps Femoris

extends thigh & flexes knee

43

Origin of Sartorius

anterior superior iliac spine

44

Insertion of Sartorius

Medial aspect of proximal tibia (by aponeurosis)

45

Action of Sartorius

flexes, abducts & laterally rotates thigh; flexes knee

46

Origin of Rectus Femoris

anterior inferior iliac spine & superior margin of acetabulum

47

Insertion of Rectus Femoris

tibial tuberosity & patella

48

Action of Rectus Femoris

extends knee & flexes thigh at hip

49

Origin of Vastus Lateralis

greater trochanter, intertrochanteric line & linea aspera

50

Insertion of Vastus Lateralis

tibial tuberosity & patella

51

Action of Vastus Lateralis

extends & stabilizes knee

52

Origin of Gastrocnemius

media & lateral condyles on femur (by 2 heads)

53

Insertion of Gastrocnemius

calcaneus via calcaneal tendon

54

Action of Gastrocnemius

plantar flexes foot

55

Origin of Trapezius

occipital bone, ligamentum nuchae, spines c7 & all thoracic vertebrae

56

Insertion of Trapezius

acromion & spinous process of scapula (lateral 1/3 of clavicle)

57

Action of Trapezius

raises, rotates, adducts scapula & stabilizes it

58

Origin of Deltoid

acromion & spine of scapula (lateral 1/3 of clavicle)

59

Insertion of Deltoid

deltoid tuberosity of humerus

60

Action of Deltoid

acting as a whole, prime mover of arm abduction

61

Origin of Latissimus Dorsi

indirect attachment to spinous process of lower 6 thoracic vertebrae, lumbar vertebrae, last 3-4 ribs & iliac crest

62

Insertion of Latissimus Dorsi

floor of intertubercular sulcus of humerus

63

Action of Latissimus Dorsi

prime mover of arm extension; adducts & medially rotates arm