Muscle Actions

Front 1

Adducts Scapula

Back 1

Rhomboid Major, Rhomboid Minor, Trapezius

Front 2

Depresses Scapula

Back 2

Pectoralis Minor, Trapezius

Front 3

Elevates Scapula

Back 3

Trapezius, Levator Scapulae

Front 4

Moves Scapula anteriorly

Back 4

Pectoralis Minor

Front 5

Rotates Scapula upward and laterally, so Glenoid Fossa faces superiorly:

Back 5

Serratus Anterior

Front 6

Rotates Scapula upward

Back 6

Trapezius

Front 7

Rotates Scapula slightly downward

Back 7

Rhomboid Major, Rhomboid Minor

Front 8

Stabalizes Shoulder joint

Back 8

Infraspinatus

Front 9

Elevates Ribs 3-5 in forced respiration

Back 9

Pectortalis Minor

Front 10

Aids in Forced inspiration

Back 10

Scalene Muscles

Front 11

Elevates Clavicle

Back 11

Trapezius

Front 12

Flexes arm

Back 12

Pectoralis Major, Deltiod, Biceps Brachii

Front 13

Extends arm

Back 13

Deltoid, Latissimus Dorsi, Teres Major, Teres Minor, Triceps Brachii

Front 14

Adducts arm

Back 14

Pectoralis Major, Latissimus Dorsi, Teres Major, Teres Minor, Infraspinatus

Front 15

Abducts Arm

Back 15

Deltoid, assisted by Supraspinatus

Front 16

Rotates arm medially

Back 16

Pectorallis Major, Deltoid, Latissimus Dorsi, Teres Major, Subscapularis

Front 17

Rotates arm laterally

Back 17

Deltiod, Terrs Minor, Infraspinatus

Front 18

Flexes arm at elbow

Back 18

Biceps Brachii, Brachialis, Brachioradialis

Front 19

Extends arm at elbow

Back 19

Triceps Brachii

Front 20

Supinates arm at elbow

Back 20

Biceps Brachi,

Front 21

Flex and Abduct wrist, Flex Digits

Back 21

Anterior Forearm Group

Front 22

Extend and Abduct wrist, Extend Digits

Back 22

Posterior Forearm Group

Front 23

Flexation, oppositions, and abduction of thumb

Back 23

Thenar Group

Front 24

Flexion, oppositions, and abduction of little finger

Back 24

Hypothenar Group

Front 25

Rotates Neck

Back 25

Scalene muscles, Splenius capitis

Front 26

Flexes Neck

Back 26

Scalene muscles, Sternocleidomastoid (acting together)

Front 27

Extends neck

Back 27

Splenius capitis

Front 28

Laterally flexes neck, towards OPPOSITE side

Back 28

Sternocleidomastoid (acting singly)

Front 29

Extension of Vertebral Column

Back 29

Erector spinae (made up of three muscles)(Iliocostalis, longissimus, spinalis)

Front 30

Lateral vertebral flex

Back 30

Iliocostalis, Longissimus, Quadratus Lumborum (acting singly)

Front 31

Extends Lumbar Spine, fixes 12th rib

Back 31

Quadratus Lumborum

Front 32

Extend thigh

Back 32

Gluteus Maximus, Biceps Femoris, Semitendinosus, Semimembranosus

Front 33

Rotate thigh laterally

Back 33

Gluteus Maximus, Quadratus femoris, Sartorius

Front 34

Rotate extended thigh laterally

Back 34

Piriformis, Superior and inferior gemellus

Front 35

Rotates thigh medially

Back 35

Gluteus Medius and Gluteus Minimus, Adductor longus, Adductor magnus, Pectineus, Tensor Fascia latae

Front 36

Abduct thigh

Back 36

Gluteus Maximus, Gluteus Medius, Gluteus Minimus, Sartorius, Tensor Fascia latae

Front 37

Abduct flexed thigh

Back 37

piriformis

Front 38

Stabilizes Hip

Back 38

Quadratus Femoris, Piriformis

Front 39

Adducts thigh

Back 39

Gracillis, Adductor longus, Adductor magnus, Pectineus

Front 40

Flexes thigh

Back 40

Adductor longus, Adductor magnus, Pectineus, Sartorius, Tensor Fascia latae, Rectus femoris

Front 41

Flexes leg at knee

Back 41

Gracillis, Sartorius, Biceps Femoris, Semitendinosus, Semimembranosis, Plantaris

Front 42

Extends leg at knee

Back 42

Rectus Femoris, Vastus Lateralis, Vastus Intermedius, Vastus Medialis

Front 43

Dorsiflex foot

Back 43

Tibialis Anterior, Extensor Digitorum Longus

Front 44

Plantar Flexion of foot

Back 44

Fibularis longus, gastrocnemius, soleus, plantaris

Front 45

Evert foot

Back 45

Fibularis longus

Front 46

Invert foot

Back 46

Tibalis Anterior

Front 47

Extend toes 2-5, prime mover of toe extension

Back 47

Extensor Digitorum Longus

Front 48

what muscles extends adducts and rotates the arm medially

Back 48

Latissimus dorsi and teres major

Front 49

what muscle aBducts and rotates the thigh medially at the hip joint

Back 49

Gluteus medius & minimus

Front 50

what adducts the thigh at the hip and flexes and rotates the thigh medially

Back 50

adductor longus, pectineus, adductor magnus

Front 51

what extends the leg

Back 51

rectus femoris
vastus lateralis, medialis, and intermedius or quads

Front 52

what extends the thigh and flexes the leg

Back 52

Biceps femoris
semitendinosus
semimembranosus