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Location
Muscle
Upper Chest
Pectoralis Major
Upper Chest
Origin
Insertion
Function
Cartilages of ribs 2-6, body of
sternum, and inferior, medial
portion of clavicle
Crest of greater tubercle and
lateral lip of intertubercular
groove of humerus
flexion, abduction,
and medial rotation
at shoulder
Pectoralis Minor
Anterior-Superior surfaces of
ribs 3-5
Coracoid process of
scapula
depresses and protracts
shoulder, elevates ribs
if scapula is stationary
Upper Arm
Deltoid
Clavicle and Scapula
deltoid tuberosity of humerus
whole muscle:abduction
at shoulder; anterior
part; flexion and medial
rotation; posterior part:
extension and lateral
rotation.
Upper Arm
Biceps Brachii
Short head from the coracoid
process; long head from the
supraglenoid tubercle (both on
the scapula)
Tuberosity of radius
flexion at elbow and
shoulder; supination
Upper Arm
Triceps Brachii
lateral head
superior, lateral margin of the
humerus
Olecranon of ulna
extension at elbow
long head
Infraglenoid tubercle of
scapula
Olecranon of ulna
extension at elbow
medial head
posterior surface of humerus
inferior to radial groove
Olecranon of ulna
extension at elbow
Forearm/Fingers
Palmaris Longus
medial epicondyle of humerus
palmar aponerosis and flexor
retinaculum
flexion at wrist
medial epicondyle of humerus;
adjacent medial surface of
olecranon and anteromedial
portion of ulna
pisiform bone, hamate bone,
and base of fifth metacarpal
bone
flexion and
abduction at wrist
longus
lateral supercondylar ridge
of humerus
base of second metacarpal bone
extension and abduction
at wrist
brevis
lateral epicondyle of humerus
base of third metacarpal bone
extension and abduction
at wrist
ulnaris
lateral epicondyle of humerus;
Adjacent dorsal surface of ulna
base of fifth metacarpal bone
extension and abduction
at wrist
“
“
Flexor Carpi Ulnaris
“
“
Extensor Carpi Radialis
Thigh
Sartorius
anterior superior iliac spine
medial surface of tibia near tibial
Tuberosity
flexion of knee; flexion
and lateral rotation at
Hip
“
Vastus Medialis
entire length of linea aspera
of femur
tibial tuberosity via patellar
ligament
extension at knee
“
Rectus Femoris
anterior inferior iliac spine
and superior acetabular rim of
illium
tibial tuberosity via patellar
ligament
extension at knee;
flexion at hip
“
Vastus Lateralis
anterior and inferior to greater
tibial tuberosity via patellar
trochanter of femur and along linea ligament
aspera (proximal half)
extension at knee
Posterior
Gluteus Maximus
iliac crest, posterior gluteal line
and lateral surface of illium,
sacrum, coccyx, and lumbodorsal
fascia
extension and
lateral rotation at
hip
iliotibial tract and gluteal
tuberosity of femur
“
Semitendonosus
Ischial Tuberosity
proximal, medial surface of
tibia near insertion of
gracilis
flexion at knee;
extension and medial
rotation at hip
“
Soleus
head of proximal shaft of
fibula and adjacent postermedial
shaft of tibia
calcaneus via calcaneal
tendon (with Gastrocnemius)
extension at ankle
“
Semimembranosus Ischial Tuberosity
posterior surface of medial
condyle of tibia
flexion at knee;
extension and medial
rotation at hip
“
Gastrocnemius
femoral condyles
calcaneus via calcaneal tendon
extension at ankle
inversion of foot;
flexion at knee
Upper Back
Latissimus Dorsi
spinous processes of inferior
Thoracic and all lumbar vertebrae
Ribs 8-12, and lumbodorsal fascia
floor of intertubercular
groove of the humerus
extension, abduction,
and medial rotation at
the shoulder
“
Rotator Cuff Group
supraspinatus
supraspinous fossa of scapula
greater tuberacle of humerus
abduction at the
shoulder
infraspinatus
infraspinous fossa of scapula
greater tuberacle of humerus
lateral rotation
at shoulder
subcapularis
subcapular fossa of scapula
lesser tuberacle of humerus
medial rotation
at shoulder
teres minor
lateral border of scapula
passes laterally to reach the
greater tuberacle of humerus
lateral rotation at
shoulder
Masseter
zigomatic arch
lateral surface of mandibular
Ramus
elevates mandible
and closes jaws
Skull