Muscles And Their Functions

Front 1

Temporalis

Back 1

closing your mouth

Front 2

Masseter

Back 2

clenching teeth (chew, chew, chew)

Front 3

Frontalis

Back 3

lift those eyebrows

Front 4

Obicularis Occuli

Back 4

ooh, bright--- squint those eyes

Front 5

Obicularis Oris

Back 5

Pucker up, sweetie

Front 6

Buccinator

Back 6

flattens check for chewing

Front 7

Zygomaticus

Back 7

Smile

Front 8

Sternocleidomastoid

Back 8

if both contract, your chin moves upward your sternum

Front 9

Platysmal

Back 9

a sheet of superficial neck muscles, (lizard like)

Front 10

Deltoid

Back 10

raises your arm when you know an answer and rotates it, too

Front 11

Pectoralis Major

Back 11

main mover for shoulder flexion and adduction: makes my shirt look good

Front 12

Trapezius

Back 12

lets you shrug your shoulders or look upward (good for a shoulder massage)

Front 13

Latissimus Dorsi

Back 13

adducts shoulder and causes extension of shoulders (a swimmers wings)

Front 14

Serratus Anterior

Back 14

moves your scapula

Front 15

Teres Major, Teres Minor, Infraspinatus

Back 15

between deltoid and trapezius; help to rotate arm and in adduction

Front 16

Rectus Abdominis

Back 16

flexes your spine when you try to touch your toes: your six pack!

Front 17

External Oblique

Back 17

outer most muscles of abdomen; fibers run downward and medial; if one contracts you can flex laterally

Front 18

Internal Oblique

Back 18

flattens cheek for chewing and fibers run upward and medial

Front 19

Transverse Abdominis

Back 19

Smile fibers run horizontal

Front 20

Erector Spinae Group

Back 20

extends the back

Front 21

External Intercostals

Back 21

help you breathe in (inspiration) in goes the air

Front 22

Internal Intercostals

Back 22

help you breathe out (expiration) out goes the bad

Front 23

Diaphragm

Back 23

separates the thoracic and abdominal cavities; used for inspiration

Front 24

Biceps Brachialis

Back 24

bends elbow and supinates forearm; lets you use a corkscrew

Front 25

Triceps Brachii

Back 25

extends elbow

Front 26

Brachioradialis

Back 26

deep to biceps on distal humerus; lifts ulna as biceps lifts radius

Front 27

Extensor Digitorum

Back 27

extends fingers and wrist

Front 28

Flexor Digitorum

Back 28

flexes fingers and wrist

Front 29

Extensor Carpi Ulnaris

Back 29

extends and adducts wrist

Front 30

Flexor Carpi Radialis

Back 30

flexes and abducts wrist

Front 31

Gluteus Maximum

Back 31

your buttock; extends hip when climbing stairs or running to give that push

Front 32

Gluteus Meduis

Back 32

smaller hip muscle commonly used as an injection so that vessels and the sciatic nerve are not damaged.

Front 33

Adductor Group

Back 33

on medial thigh; they adduct the leg includes adductors, gracilis and pectineus

Front 34

Hamstring group

Back 34

on posterior thigh; extends thigh and flexes knee; includes biceps femoris , semitendonosis, and semimembranosis; biceps femoris also rotates leg laterally, while the semis rotates leg medially

Front 35

Quadricep Group

Back 35

on anterior thigh; extends the knee; includes the rectus femoris, vastus medialis, and vastus lateralis

Front 36

Sartourius

Back 36

crosses thigh from hip to inner thigh near knee; flexes and laterally rotates thigh; allows you to cross your legs.

Front 37

Gastrocnemius

Back 37

your superficial calf muscle; allows you to plantar flex

Front 38

Soleus

Back 38

deep to #7 plantar flexes foot; good in walking, running, dancing just like your gastrocnemius

Front 39

Peroneus Longus

Back 39

lateral side of the lower leg; allows to plantar flex and evert your foot.

Front 40

Tibialis Posterior

Back 40

allows you to plantar flex and invert foot

Front 41

Tibialis Anterior

Back 41

allows you to dorsiflex and invert foot

Front 42

Fibularis Muscles

Back 42

plantar flexes and everts foot

Front 43

Flexor Digitorum Longus

Back 43

plantar flexes and inverts foot, flexes toes

Front 44

Extensor Digitorum Longus

Back 44

dorsiflexes and everts foot, extends toes