|
MUSCLE
|
ORIGIN
|
INSERTION
|
ACTION
|
| Muscles-Head & Neck |
|
|
|
| Orbicularis Oculi |
medial wall of orbit |
medial wall of orbit |
close eye |
| Orbicularis Oris |
muscles around mouth |
skin at corners of mouth |
purse lips |
| Zygomaticus |
zygomatic bone |
skin at corners of mouth |
smile |
| Frontalis |
galea aponeurotica |
skin of eyebrows |
raise eyebrows/wrinkle forehead |
| Temporalis |
temporal bone |
mandible |
closes jaw |
| Masseter |
zygomatic arch |
mandible |
closes jaw-prime mover |
| Buccinator |
maxilla & mandible |
orbicularis oris |
compress cheek |
| Platysma |
chest fascia |
mandible/skin/muscle |
depress mandible |
| Digastric |
mandible/mastoid process |
hyoid |
elevate hyoid/depress mandible |
| Sternohyoid |
manubrium/clavicle |
hyoid |
depresses larynx/hyoid |
| Sternocleidomastoid |
manubrium/clavicle |
mastoid process |
flex/rotate head |
| Muscles of the Thorax |
ORIGIN |
INSERTION |
ACTION |
| Serratus Anterior |
ribs |
scapula |
protract scapula |
| Trapezius |
occipital/vertebrae |
scapula/clavicle |
elevate/adduct/rotate scapula |
| Levator Scapulae |
cervical vertebrae |
scapula |
elevate/adduct scapula |
| Rhomboids |
vertebrae |
scapula |
adduct scapula |
| Pectoralis Major |
clavicle/sternum/ribs |
humerus |
medially rotate/adduct arm |
| Latissimus Dorsi |
vertebrae/ribs/ilium/scapula |
humerus |
extend/adduct/medial rotate arm |
| Deltoid |
clavicle/scapula |
humerus-deltoid tuberosity |
abduct arm |
| Supraspinatus |
above the spine of scapula |
humerus |
stabilize the shoulder/labduct arm |
| Infraspinatus |
below the spine of scapula |
humerus |
stabilize the shoulder/lateral rotate humerus |
| Teres Major |
scapula |
humerus |
extend/medial rotate/adduct arm |
| Subscapularis |
scapula |
humerus |
stablize the shoulder/medial rotate humerus |
| Muscles of the Abdomen |
ORIGIN |
INSERTION |
ACTION |
| Rectus Abdominis |
pubis |
xiphoid process/ribs |
compress abdomen/flex&rotate lumbar region |
| External Oblique |
ribs |
linea alba/pubis/ilium |
compress abdomen/rotate&lateral flex trunk |
| Internal Oblique |
lumbodorsal fascia/iliac crest |
linea alba/pubis/ribs |
compress abdomen/rotate&lateral flex trunk |
| Transverse Abdominis |
lumbodorsal fascia/ribs/ilium |
linea alba/pubis |
compress abdomen |
| Muscles of the Upper Extremities |
ORIGIN |
INSERTION |
ACTION |
| Brachialis |
humerus |
ulna-coronoid process |
flex elbow |
| Brachioradialis |
humerus |
radius-styloid process |
flex elbow |
| Biceps Brachii |
scapula |
radius |
flex elbow/suppinate forearm |
| Triceps Brachii |
scapula/humerus |
ulna-olecranon process |
extend elbow |
| Pronator Teres |
humerus/ulna |
radius |
pronate forearm |
| Flexor Carpi Radialis |
humerus |
metacarpals |
flex wrist&elbow |
| Flexor Carpi Ulnaris |
humerus |
metacarpals |
flex wrist |
| Extensor Carpi Radialis Longus & Brevis |
humerus |
metacarpal |
extend&abduct wrist |
| Extensor Carpi Ulnaris |
humerus/ulna |
metacarpal |
extend & adduct wrist |
| Palmaris Longus |
humerus |
palmar aponeurosis |
wrist flexor |
| Flexor Digitorum Superficialis |
humerus/ulna/radius |
2nd phalanges |
flex digits 2-5/flex wrist |
| Flexor Digitorum Profundus |
ulna |
distal phalanges |
flex digits 2-5/flex wrist |
| Extensor Digitorum |
humerus |
distal phalanges |
extend fingers & wrist |
| Muscles of the Lower Extremities |
ORIGIN |
INSERTION |
ACTION |
| Sartorius |
ilium |
tibia |
flex & lateral rotate thigh/flex knee |
| Adductor Longus |
pubis |
linea aspera |
adduct/flex/lateral rotate thigh |
| Gracilis |
pubis |
tibia |
adductthigh/flex leg |
| Adductor Magnus |
ischium/pubis |
femur |
adduct & extend thigh |
| Tensor Fascia Latae |
ilium |
iliotibial tract |
flex & abduct thigh |
| Quadriceps Femoris: |
|
|
|
| 1. rectus femoris |
ilium |
patella/tibia |
extend knee/flex thigh |
| 2. vastus lateralis |
femur |
patella |
extend knee |
| 3. vastus medialis |
femur |
patella |
extend knee |
| 4. vastus intermedius |
femur |
patella |
extend knee |
| Gluteus Maximus |
ilium/sacrum/coccyx |
femur |
extend thigh/lateral rotate thigh |
| Hamstrings: |
|
|
|
| 1. biceps femoris |
ischium/femur |
fibula/tibia |
extend thigh/flex knee/lateral rotate leg |
| 2.semitendinosus |
ischium |
tibia |
extend thigh/flex knee/lateral rotate leg |
| 3. semimembranosus |
ischium |
tibia |
extend thigh/flex knee/lateral rotate leg |
| Tibialis Anterior |
tibia |
medial cuneiform&1st metatarsal |
dorsiflex & invert |
