Anatomy

Front 1

Occipitalis O

Back 1

occipital and temporal (mastoid) bones

Front 2

Occipitalis I

Back 2

galea aponeurotica

Front 3

Occipitalis F

Back 3

fixes aponeurosis and pulls scalp posteriorly

Front 4

Masseter O

Back 4

zygomatic bone and zygomatic arch

Front 5

Masseter I

Back 5

angle and ramus of mandible

Front 6

Masseter F

Back 6

Primary mover of jaw closure: elevates mandible

Front 7

Omohyoid O

Back 7

superior surface of scapula

Front 8

Omohyoid I

Back 8

hyoid bone, lower border

Front 9

Omohyoid F

Back 9

Depresses and retracts hyoid bone

Front 10

Pectoralis minor O

Back 10

anterior surfaces of ribs 3-5 ( or 2-4)

Front 11

Pectoralis minor I

Back 11

coracoid process of scapula

Front 12

Pectoralis minor F

Back 12

with ribs fixed, draws scapula forward and downward; with scapula fixed, draws rib cage superiorly

Front 13

Brachialis O

Back 13

front of distal humerus; embraces insertion of deltoid muscle

Front 14

Brachialis I

Back 14

coronoid process of ulna and capsule of elbow joint

Front 15

Brachialis F

Back 15

A major forearm flexor (lifts ulna as biceps lifts the radius)

Front 16

Pronator teres O

Back 16

medial epicondyle of humerus; coronoid process of ulna

Front 17

Pronator teres I

Back 17

by common tendon into lateral radius, midshaft

Front 18

Pronator teres F

Back 18

Pronates forearm; weak flexor of elbow

Front 19

Flexor pollicis longus O

Back 19

anterior surface of radius and interosseous membrane

Front 20

Flexor pollicis longus I

Back 20

distal phalanx of thumb

Front 21

Flexor pollicis longus F

Back 21

Flexes distal phalanx of thumb

Front 22

Adductor longus O

Back 22

pubis near pubic symphysis

Front 23

Adductor longus I

Back 23

linea aspera

Front 24

Adductor longus F

Back 24

adducts, flexes, and medially rotates thigh

Front 25

Vastus intermedius O

Back 25

anterior and lateral surfaces of proximal femur shaft

Front 26

Vastus intermedius I

Back 26

as for rectus femoris

Front 27

Vastus intermedius F

Back 27

extends knee

Front 28

Semimembranosus O

Back 28

ischial tuberosity

Front 29

Semimembranosus I

Back 29

medial condyle of tibia; through oblique ligament to lateral condyle of femur

Front 30

Semimembranosus F

Back 30

extends thigh and flexes knee; medially rotates leg

Front 31

Fibularis longus O

Back 31

head and upper portion of lateral side of fibula

Front 32

Fibularis longus I

Back 32

by long tendon taht curves under foot to first metatarsal and medial cuneiform

Front 33

Fibularis longus F

Back 33

Plantar flexes and everts foot; may help keep foot flat on ground

Front 34

Flexor digitorum longus O

Back 34

extensive origin on the posterior tibia

Front 35

Flexor digitorum longus I

Back 35

tendon runs behindmedial malleolus and splits to insert into distal phalanges of toes 2-5

Front 36

Flexor digitorum longus F

Back 36

plantar flexes and inverts foot; flexes toes; helps foot "grip" ground