Muscles A&p Brady Rachel

Front 1

Diaphragm

Back 1

Prime mover of inspiration. Flattens on contraction

Front 2

Rectus Abdominis

Back 2

Flex and rotate lumbar region of vertebral column

Front 3

Deltoid

Back 3

Prime mover of arm abduction

Front 4

Pectoralis Major

Back 4

Prime mover of arm flexion.

Front 5

Biceps Brachii

Back 5

Flexes elbow joint

Front 6

Serratus Anterior

Back 6

Rotates scapula

Front 7

Trapezius

Back 7

Stabilizes, raises, retracts, and rotates scapula

Front 8

Orbicularis Oculi

Back 8

Closes eye

Front 9

Zygomaticus Major

Back 9

Raises lateral corners of mouth upward

Front 10

Buccinator

Back 10

Compresses cheek

Front 11

Orbicularis Oris

Back 11

Closes lips

Front 12

Frontalis

Back 12

Raises eyebrows, wrinkles forehead

Front 13

Platysma

Back 13

Tenses skin of neck

Front 14

Splenius Capitis

Back 14

Extend or hyper extend head

Front 15

Sternocleidomastoid

Back 15

Flexes and laterally rotates the head

Front 16

Masseter

Back 16

Prime mover of jaw closure

Front 17

Temporalis

Back 17

Closes jaw

Front 18

Occipitalis

Back 18

Pulls scalp posteriorly

Front 19

Internal Oblique

Back 19

Flex vertebral column compress abdominal wall

Front 20

Transversus Abdominis

Back 20

Compresses abdominal contents

Front 21

external oblique

Back 21

Flex vertebral column compress abdominal wall

Front 22

Sartorius

Back 22

Flexes and abducts thigh

Front 23

Teres Major

Back 23

Extends and medially rotates humerus

Front 24

Teres Minor

Back 24

Rotates humerus laterally

Front 25

Infraspinatus

Back 25

Rotates humerus laterally

Front 26

Brachioradialis

Back 26

Forearm Flexion

Front 27

Flexor Pollicis Longus

Back 27

Flexes distal phalanx of thumb

Front 28

External Intercostals

Back 28

Pull ribs toward one another to elevate rib cage

Front 29

Flexor Digitorum Superficialis

Back 29

Flexes wrist and middle phalanges 2-5

Front 30

Flexor Carpi Ulnaris

Back 30

Powerful flexor of wrist, adducts hand

Front 31

Palmaris Longus

Back 31

Tense's skin and fascia of plam during hand movements

Front 32

Flexor Carpi Radialis

Back 32

Powerful flexor of wrist abducts hand

Front 33

Extensor Carpi Radialis Longus

Back 33

Extends wrist

Front 34

Internal intercostals

Back 34

Draw ribs together and depress rib cage

Front 35

Brachialis

Back 35

Major forearm flexor

Front 36

Extensor Carpi Ulnaris

Back 36

Extends wrist

Front 37

Adductor Magnus

Back 37

Adducts and medially rotates and felxes thigh

Front 38

Extensor Pollicis Longus

Back 38

Extends thumb

Front 39

Extensor Pollicis Brevis

Back 39

Extends thumb

Front 40

Extensor Digitorum

Back 40

Finger extension

Front 41

Tensor Fascia Latae

Back 41

steadies knee and trunk

Front 42

Pectineus

Back 42

adducts, flexes, and medial rotates thigh

Front 43

Sartorius

Back 43

Flexes, abducts, and laterally rotates thigh. Flexes knee

Front 44

Plantaris

Back 44

Assists knee in flexion and plantar flexion of the foot

Front 45

Quadriceps femoris

Back 45

Extends the knee

Front 46

Gracilis

Back 46

Adducts thigh, flexes and medially rotates leg

Front 47

Adductor Longus

Back 47

Adducts, flexes, medially rotates thigh

Front 48

Piriformis

Back 48

Rotates extended thigh laterally

Front 49

Gluteus Maximus

Back 49

Major extensor of thigh

Front 50

Gluteus medius

Back 50

Abducts and medially rotates thigh

Front 51

Biceps Femoris

Back 51

Extends thigh and flexes knee

Front 52

Semitendinosus

Back 52

Extends thigh and flexes knee

Front 53

Semimembranosus

Back 53

Extends thigh and flexes knee

Front 54

Gastrocnemius

Back 54

Plantar flexes foot

Front 55

Soleus

Back 55

Plantar flexes foot

Front 56

Extensor Digitorum Brevis

Back 56

Helps extend toes

Front 57

Tibialis Posterior

Back 57

Prime mover of foot inversion

Front 58

Popliteus

Back 58

Flexes and rotates leg medially to unlock extended knee when flexion begins

Front 59

Tibialis Anterior

Back 59

Prime mover of dorsiflexion

Front 60

Extensor Digitorum Longus

Back 60

Prime mover of toe extension

Front 61

Fibularis Longus

Back 61

Plantar flexes and everts foot

Front 62

Fibularis Brevis

Back 62

Plantar flexes and everts foot

Front 63

abductor pollicis longus

Back 63

Abducts and extends thumb

Front 64

Extensor Digiti Minimi

Back 64

extends pinky

Front 65

latissimus dorsi

Back 65

arm extension, arm adductor, medially rotates arm at shoulder