group |
muscle |
origin |
insertion |
action |
arm |
biceps brachii |
coracoid process, supraglenoid tuberosity
scapula |
radial tuberosity |
flex elbow; supinate forearm |
arm |
brachialis |
anterior distal humerus |
coronoid process of ulna |
flex elbow |
arm |
brachioradialis |
lateral supracondylar ridge of humerus |
styloid process of radius |
flex elbow |
arm |
coracobrachialis |
coracoid process |
medial mid-humerus |
flex, adduct shoulder |
arm |
deltoid |
clavicle, acromion, spine of scapula |
deltoid tuberosity |
abduct, extend, or flex shoulder |
arm |
triceps brachii |
infraglenoid tuberosity scapula; posterior humerus |
olecranon |
extend elbow |
arm |
anconeus |
lateral epicondyle of humerus |
olecranon |
extend elbow |
arm |
pronator teres |
medial epicondyle humerus; coronoid
process ulna |
lateral radius |
pronate forearm |
arm |
supinator |
supinator crest of ulna |
lateral radius |
supinate forearm |
foot |
abductor digiti minimi (foot) |
calcaneus |
proximal phalanx of digit V |
abduct digit V |
foot |
abductor hallucis |
calcaneus |
proximal phalanx of digit I |
abduct big toe |
foot |
extensor digitorum longus |
proximolateral fibula |
phalanges of digits II-V |
extend tarsal digits II-V, dorsiflex foot |
foot |
extensor hallucis longus |
anterior fibula |
distal phalanx of digit I |
extend big toe |
foot |
flexor digitorum longus |
middle posterior tibia |
distal phalanges of digits II-V |
flex digits II-V |
foot |
flexor hallucis longus |
middle posterior fibula |
distal phalanx of digit I |
flex big toe |
foot |
gastrocnemius |
both condyles of femur |
posterior calcaneus |
plantarflex foot, flex knee |
foot |
peroneus/fibularis brevis |
distal fibula |
metatarsal V |
plantarflex, evert foot |
foot |
peroneus/fibularis longus |
lateral fibula |
cuneiform II, metatarsal I |
plantarflex foot, evert foot; maintain arch
of foot |
foot |
plantaris |
lateral condyle of femur |
calcaneus |
plantarflex foot |
foot |
popliteus |
lateral epicondyle of femur |
posterior, proximal tibia |
flex, medially rotate knee |
foot |
soleus |
posterior fibula & tibia |
calcaneus |
plantarflex foot |
foot |
tibialis anterior |
proximolateral tibia |
metatarsal I, cuneiform II |
dorsiflex ankle; invert foot |
foot |
tibialis posterior |
proximal posterior tibia, fibula |
navicular, cuneiform, metatarsals II-IV |
plantarflex, invert foot |
hand |
abductor digiti minimi (hand) |
pisiform |
proximal phalanx of digit V |
abduct pinky |
hand |
abductor pollicis brevis |
scaphoid, trapezium |
base of proximal phalanx of digit I |
abduct thumb |
hand |
abductor pollicis longus |
posterior mid-radius & ulna |
base of metacarpal I |
abduct thumb |
hand |
extensor carpi radialis brevis |
lateral supracondylar ridge of humerus |
third metacarpal |
extend, abduct wrist |
hand |
extensor carpi radialis longus |
lateral supracondylar ridge of humerus |
second metacarpal |
extend, abduct wrist |
hand |
extensor carpi ulnaris |
lateral epicondyle of humerus |
base of fifth metacarpal |
extend, adduct wrist |
hand |
extensor digiti minimi |
lateral epicondyle of humerus |
phalanx of digit V |
extend digit V |
hand |
extensor digitorum |
lateral epicondyle of humerus |
phalanges of digits II-V |
extend carpal digits II-V |
hand |
extensor indicis |
distal ulna |
tendon of extensor digitorum |
extend digit II |
hand |
extensor pollicis brevis |
distal radius |
proximal phalanx of digit I |
extend thumb, abduct hand |
hand |
extensor pollicis longus |
mid-ulna, lateral side |
distal phalanx of digit I |
extend thumb, abduct hand |
hand |
flexor carpi radialis |
medial epicondyle of humerus |
metacarpals II & III |
flex, abduct wrist |
hand |
flexor carpi ulnaris |
medial epicondyle of humerus |
pisiform |
flex, adduct wrist |
hand |
flexor digitorum profundus |
shaft of ulna |
distal phalanges of digits II-V |
flex digits II-V |
hand |
flexor digitorum superficialis |
medial epicondyle of humerus; shaft of ulna |
middle phalanges of digits II-V |
flex digits II-V |
hand |
palmaris longus |
medial epicondyle of humerus |
palmar aponeurosis |
flex wrist |
head |
buccinator |
maxilla & mandible |
orbicularis oris |
compress cheek |
head |
frontalis |
galea aponeurotica |
skin of eyebrow |
elevate eyebrow |
head |
masseter |
zygomatic arch |
ramus of mandible |
elevate mandible |
head |
oblique capitis inferior |
SP of C2 |
TP of C1 |
rotate head |
head |
oblique capitis superior |
TP of C1 |
between nuchal lines of occiput |
extend neck at C1, tilt head |
head |
occipitalis |
occipital bone, mastoid process |
galea aponeurotica |
move scalp backward |
head |
platysma |
fascia of neck & chest |
mandible, mandibular fascia |
depress mandible |
head |
rectus capitis posterior major |
SP of C2 |
nuchal line of occiput |
extend neck at C1; rotate head |
head |
rectus capitis posterior minor |
posterior arch of C1 |
nuchal line of occiput |
extend neck at C1 |
head |
sternocleidomastoid |
manubrium, medial clavicle |
mastoid process |
rotate head; flex neck |
head |
temporalis |
temporal fossa |
coronoid process of mandible |
elevate, retract mandible |
hip |
adductor brevis |
inferior ramus of pubis |
linea aspera |
adduct, flex, laterally rotate hip |
hip |
adductor longus |
pubis |
linea aspera |
adduct, flex, laterally rotate hip |
hip |
adductor magnus |
inferior ramus of pubis; ischial tuberosity |
linea aspera, medial epicondyle femur |
adduct, flex, laterally rotate hip |
hip |
gluteus maximus |
medial iliac crest, sacrum |
IT band, gluteal tuberosity femur |
extend, laterally rotate hip |
hip |
gluteus medius |
upper lateral ilium |
greater trochanter |
abduct, medially rotate hip |
hip |
gluteus minimus |
lower lateral ilium |
greater trochanter |
abduct hip |
hip |
gracilis |
inferior ramus of pubis |
proximomedial shaft of tibia |
adduct thigh; flex, rotate leg at knee |
hip |
iliacus |
iliac fossa |
lesser trochanter |
flex, laterally rotate thigh; flex lumbar
spine |
hip |
pectineus |
superior ramus of pubis |
lesser trochanter |
adduct, flex thigh |
hip |
piriformis |
anterior sacrum |
greater trochanter |
laterally rotate hip |
hip |
psoas major |
L1-L5 |
lesser trochanter |
flex, laterally rotate hip; flex lumbar
spine |
hip |
psoas minor |
L1 |
pubis |
extend, laterally rotate hip; extend lumbar
spine |
hip |
tensor fasciae latae |
anterior border of ilium, iliac crest |
IT band |
abduct hip; flex hip |
knee |
biceps femoris |
ischial tuberosity; linea aspera |
head of fibula |
flex knee; extend, laterally rotate hip |
knee |
iliotibial band |
gluteal fascia, iliac crest |
tibial tubercle |
abduct hip; flex hip |
knee |
sartorius |
ASIS |
proximomedial tibia |
flex knee & hip; rotate hip;
medially rotate knee |
knee |
semimembranosus |
ischial tuberosity |
medial condyle of tibia |
flex knee; extend, medially rotate thigh |
knee |
semitendinosus |
ischial tuberosity |
proximomedial shaft of tibia |
flex knee; extend, medially rotate thigh |
knee |
rectus femoris |
ASIS |
patellar tendon |
extend knee; flex hip |
knee |
vastus intermedius |
anterior, lateral femur |
patellar tendon |
extend knee |
knee |
vastus lateralis |
lateral linea aspera |
patellar tendon |
extend knee |
knee |
vastus medialis |
medial linea aspera |
patellar tendon |
extend knee |
neck |
iliocostalis cervicis |
ribs 3-6 |
TPs of C4-C7 |
extend cervical spine |
neck |
longissimus capitis |
TPs of T1-T5 |
mastoid process temporal bone |
extend neck; rotate head |
neck |
longissimus cervicis |
TPs of T1-T5 |
TPs of C2-C7 |
extend cervical spine; laterally flex neck |
neck |
semispinalis capitis |
TPs of C7-T7 |
occiput; SPs of C2-C7 |
extend neck |
neck |
semispinalis cervicis |
TPs of T1-T6 |
SPs of C2-C5 |
extend cervical spine |
neck |
spinalis cervicis |
SP of C7, ligamentum nuchae |
SPs of C2-C7 |
extend cervical spine |
neck |
splenius capitis |
SPs C7-T3; ligamentum nuchae |
mastoid process temporal bone |
rotate head; flex neck |
neck |
splenius cervicis |
SPs T3-T6 |
TPs C2-C4 |
rotate head; flex neck |
thorax |
infraspinatus |
infraspinous fossa |
greater tubercle of humerus |
laterally rotate shoulder |
thorax |
latissimus dorsi |
SPs of T7-L5, iliac crest |
lesser tubercle of humerus |
extend, adduct, medially rotate shoulder |
thorax |
levator scapula |
TPs of C1-C4 |
medial border, superior angle of scapula |
elevate scapula; laterally flex neck |
thorax |
pectoralis major |
clavicle, sternum, cartilage of ribs 1-6 |
greater tubercle of humerus |
adduct, medially rotate shoulder |
thorax |
pectoralis minor |
ribs 3-5 |
coracoid process of scapula |
depress, abduct scapula |
thorax |
rhomboid major |
SPs of T2-T5 |
medial border of scapula |
elevate, adduct scapula |
thorax |
rhomboid minor |
SPs of C7-T1 |
medial border of scapula |
elevate, adduct scapula |
thorax |
serratus anterior |
ribs 1-8 |
anterior medial border of scapula |
depress, abduct scapula |
thorax |
subscapularis |
subscapular fossa |
lesser tubercle of humerus |
medially rotate shoulder |
thorax |
supraspinatus |
supraspinous fossa |
greater tubercle of humerus |
abduct shoulder |
thorax |
teres major |
inferior angle, lateral border of scapula |
lesser tubercle of humerus |
extend & medially/internally rotate shoulder |
thorax |
teres minor |
axillary border of scapula |
greater tubercle of humerus |
laterally/externally rotate shoulder |
thorax |
trapezius |
occiput, ligamentum nuchae, SPs of C7-T12 |
clavicle, spine of scapula, acromion |
move scapula; extend neck;
stabilize shoulder |
thorax |
external intercostals |
ribs |
ribs |
raise thorax; inhalation |
thorax |
external oblique |
ribs 5-12 |
iliac crest, linea alba |
compress abdomen; rotate
thorax |
thorax |
iliocostalis lumborum |
iliac crest, sacrum |
ribs 7-12 |
extend lumbar spine |
thorax |
iliocostalis thoracis |
ribs 7-12 |
ribs 1-6 |
extend thoracic spine |
thorax |
internal intercostals |
ribs |
ribs |
lower thorax; exhalation |
thorax |
internal oblique |
lateral iliac crest, inguinal ligament |
linea alba, cartilage of ribs 10-12 |
compress abdomen; rotate thorax |
thorax |
longissimus thoracis |
TPs of L1-L5 |
TPs of T1-T12 & ribs 4-12 |
extend thoracic spine |
thorax |
quadratus lumborum |
iliac crest |
rib 12, TPs of L1-L4 |
tilt pelvis, extend lumbar spine, laterally
flex spine |
thorax |
rectus abdominis |
pubic crest |
cartilage of ribs 5-7, xiphoid process |
flex spine |
thorax |
semispinalis thoracis |
TPs of T6-T10 |
SPs of C6-T4 |
extend thoracic spine |
thorax |
spinalis thoracis |
SPs of T9-L3 |
SPs of T1-T8 |
extend thoracic spine |
thorax |
transverse abdominis |
iliac crest, inguinal ligament, lumbar
fascia, ribs 7-12 |
xiphoid process, linea alba, pubis |
compress abdomen |
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