📖 Static demo — read-only snapshot

You’re browsing a static build of the Body IQ knowledge graph, so everything loads with no backend. A few things that need the live server are turned off here:

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Everything else — the body map, progression ladders, coverage heatmap, exercise finder, and all anatomy/exercise/source pages — works fully. The full app (live search + API + database) runs from the source on GitHub.

Muscles

107 muscles · origin, insertion, and what they drive

Muscle
Origin
Insertion
Movements
Exercises
Status
Confidence
Abductor Digiti MinimiPisiform and pisohamate ligamentUlnar base of 5th proximal phalanx and extensor expansion13Draft95%Abductor Pollicis BrevisFlexor retinaculum, scaphoid, trapeziumLateral side of proximal phalanx of thumb27Draft95%Abductor Pollicis LongusPosterior radius, ulna, and interosseous membraneRadial base of 1st metacarpal (may have slips to trapezium and APB)23Draft95%Adductor BrevisAnteroinferior aspect of pubic body and inferior pubic ramusProximal linea aspera and pectineal line32Draft95%Adductor Group (Longus/Brevis/Magnus)Pubic bone (various surfaces for each muscle)Linea aspera of femur (longus/brevis); linea aspera and adductor tubercle (magnus)215Draft95%Adductor LongusAnterosuperior aspect of pubic bodyMiddle third of linea aspera33Draft95%Adductor MagnusAdductor portion: inferior pubic ramus and ischial ramus; Hamstring portion: ischial tuberosityAdductor portion: linea aspera; Hamstring portion: adductor tubercle of femur217Draft95%Adductor PollicisOblique head: capitate, 2nd-3rd metacarpal bases; Transverse head: 3rd metacarpal shaftMedial side of proximal phalanx of thumb via medial sesamoid35Draft95%AnconeusLateral epicondyle of humerusLateral olecranon and proximal ulna17Draft95%Anterior DeltoidLateral third of clavicleDeltoid tuberosity of humerus450Draft95%Biceps BrachiiLong head: supraglenoid tubercle; Short head: coracoid process of scapulaRadial tuberosity, bicipital aponeurosis328Draft95%Biceps Femoris — Long HeadIschial tuberosity (conjoint tendon with semitendinosus)Head of fibula, lateral tibial condyle311Draft95%Biceps Femoris — Short HeadLateral lip of linea aspera, lateral supracondylar lineHead of fibula (joins long head tendon)22Draft95%BrachialisAnterior surface of distal half of humerusSuperficial head: ulnar tuberosity via thick tendon; Deep head: coronoid process via aponeurosis319Draft95%BrachioradialisProximal two-thirds of lateral supracondylar ridge of humerusLateral aspect of distal radius (styloid process)219Draft95%Deep Cervical FlexorsLongus colli: anterior tubercles C3-C5 (superior oblique), bodies C5-T3 (vertical), transverse processes C5-C6 (inferior oblique); Longus capitis: anterior tubercles C3-C6 transverse processesLongus colli: anterior tubercle of C1 atlas (superior oblique), bodies C2-C4 (vertical), bodies C5-C6 (inferior oblique); Longus capitis: basilar part of occipital bone (inferior surface)212Draft95%DiaphragmXiphoid process, costal cartilages of ribs 7-12, lumbar vertebrae (crura attach to L1-L3)Central tendon220Draft95%Dorsal Interossei (Hand)Adjacent sides of two metacarpals eachLateral sides of proximal phalanges and extensor expansions of fingers 2-4410Draft95%Erector Spinae GroupIliocostalis lumborum: ilium, erector spinae aponeurosis, L1-4 transverse/accessory processes; Longissimus thoracis: ilium, lumbar intermuscular aponeurosis, erector spinae aponeurosisIliocostalis: costal elements of L1-4, lower ribs; Longissimus: accessory and transverse processes of lumbar vertebrae, lower thoracic vertebrae and ribs994Draft95%Extensor Carpi Radialis BrevisLateral epicondyle via long, wide tendinous origin on anterior slopeBase of 3rd metacarpal (dorsal surface)28Draft95%Extensor Carpi Radialis LongusLateral supracondylar ridge of humerusBase of 2nd metacarpal212Draft95%Extensor Carpi UlnarisLateral epicondyle and posterior ulnar borderBase of 5th metacarpal (dorsal surface)29Draft95%Extensor DigitorumLateral epicondyle of humerus (common extensor origin)Extensor expansions of fingers 2-5517Draft95%Extensor Digitorum LongusLateral tibial condyle, fibula, interosseous membraneMiddle and distal phalanges of toes 2-543Draft95%Extensor Hallucis LongusMiddle fibula, interosseous membraneDistal phalanx of great toe33Draft95%Extensor Pollicis BrevisPosterior radius and interosseous membraneDorsal base of proximal phalanx of thumb12Draft95%Extensor Pollicis LongusMiddle third of posterior ulna, interosseous membraneBase of distal phalanx of thumb21Draft95%External IntercostalsInferior border of rib above (from tubercle to costochondral junction)Superior border of rib below18Draft95%External ObliqueExternal surfaces of ribs 5-12Linea alba, pubic tubercle, anterior half of iliac crest647Draft95%Flexor Carpi RadialisMedial epicondyle of humerus (common flexor origin)Base of 2nd and 3rd metacarpals313Draft95%Flexor Carpi UlnarisMedial epicondyle (humeral head), olecranon and posterior ulna (ulnar head)Pisiform, hook of hamate, base of 5th metacarpal216Draft95%Flexor Digiti Minimi BrevisFlexor retinaculum and hook of hamateUlnar base of 5th proximal phalanx11Draft95%Flexor Digitorum LongusPosterior tibiaDistal phalanges of toes 2-539Draft95%Flexor Digitorum ProfundusProximal three-quarters of anterior and medial ulna, interosseous membraneBases of distal phalanges of fingers 2-5320Draft95%Flexor Digitorum SuperficialisMedial epicondyle, coronoid process, anterior radiusMiddle phalanges of fingers 2-5324Draft95%Flexor Hallucis LongusPosterior fibula, interosseous membraneDistal phalanx of great toe312Draft95%Flexor Pollicis BrevisSuperficial head: flexor retinaculum, trapezium; Deep head: trapezoid, capitateLateral side of proximal phalanx of thumb via lateral sesamoid27Draft95%Flexor Pollicis LongusAnterior surface of radius, interosseous membraneBase of distal phalanx of thumb35Draft95%GastrocnemiusMedial head: posterior surface of medial femoral condyle; Lateral head: posterior surface of lateral femoral condyleCalcaneus via Achilles tendon354Draft95%Gemellus Superior and InferiorSuperior: ischial spine; Inferior: ischial tuberosityMedial surface of greater trochanter (via obturator internus tendon complex)14Draft95%Gluteus MaximusPosterior gluteal line of ilium, dorsal surface of sacrum and coccyx, sacrotuberous ligamentSuperior three-fourths: gluteal tuberosity of femur via plate-like distal tendon, with partial adhesions to iliotibial tract; inferior portion: lateral femoral intermuscular septum complex494Draft95%Gluteus MediusGluteal fossa (between anterior and posterior gluteal lines), gluteal aponeurosis, posteroinferior edge of iliac crestLateral and superoposterior facets of greater trochanter via lateral and posterior tendon parts469Draft95%Gluteus MinimusGluteal fossa (between anterior and inferior gluteal lines)Anterior facet of greater trochanter and hip joint capsule323Draft95%GracilisBody and inferior ramus of pubisMedial surface of proximal tibia (pes anserinus)36Draft95%Hamstrings (Group)Ischial tuberosity (long heads); biceps short head: lateral lip of linea asperaBiceps: head of fibula; Semimembranosus: posterior medial tibial condyle; Semitendinosus: pes anserinus368Draft95%IliopsoasIliacus: iliac fossa, anterior sacroiliac ligament; Psoas major: transverse processes, vertebral bodies, and intervertebral discs of T12-L5Lesser trochanter of femur; psoas tendon inserts separately from iliacus into crest running from superior to anterior aspect of lesser trochanter339Draft95%InfraspinatusInfraspinous fossa of scapulaGreater tuberosity of humerus (middle facet)737Draft95%Internal IntercostalsSuperior border and costal groove of rib below (from sternum to angle of rib)Inferior border of rib above11Draft95%Internal ObliqueThoracolumbar fascia, iliac crest, lateral two-thirds of inguinal ligamentLower ribs (10-12), linea alba, pubic crest636Draft95%Latissimus DorsiSpinous processes T7-L5, posterior iliac crest, thoracolumbar fascia, inferior angle of scapulaFloor of bicipital groove of humerus436Draft95%Levator ScapulaePosterior tubercles of C1-C4 transverse processesSuperior angle and medial border of scapula411Draft95%Lower TrapeziusSpinous processes T4-T12Deltoid tubercle (medial spine of scapula)542Draft95%Lumbricals (Hand)Tendons of flexor digitorum profundusLateral sides of extensor expansions of fingers 2-549Draft95%Middle DeltoidAcromion (typically 4-5 tendinous bands)Deltoid tuberosity of humerus29Draft95%Middle TrapeziusSpinous processes C7-T3Medial acromion, superior spine of scapula437Draft95%MultifidusPosterior sacrum, superior iliac spine, mammillary processes of lumbar vertebrae, lateral sacral crest, thoracolumbar fascia (pennate bundle)Spinous processes of lumbar vertebrae, typically 2-4 levels above841Draft95%Obturator ExternusOuter surface of obturator membrane and pubic ramusTrochanteric fossa of femur14Draft95%Obturator InternusInner surface of obturator membrane and surrounding pelvic boneMedial surface of greater trochanter (forms continuum with gemelli)16Draft95%Opponens Digiti MinimiFlexor retinaculum and hook of hamateUlnar border of 5th metacarpal11Draft95%Opponens PollicisFlexor retinaculum, trapeziumLateral border of 1st metacarpal16Draft95%Palmar InterosseiPalmar surfaces of 2nd, 4th, and 5th metacarpalsExtensor expansions and proximal phalanges of fingers 2, 4, 517Draft95%Palmaris LongusMedial epicondyle via anterior common tendonPalmar aponeurosis12Draft95%PectineusPectineal line of pubisPectineal line of femur (posterior to lesser trochanter)36Draft95%Pectoralis MajorClavicular head: medial half of clavicle; Sternal head: sternum and costal cartilages 1-6Lateral lip of bicipital groove (clavicular head: anterior lamina; sternal head: posterior lamina)747Draft95%Peroneus Brevis (Fibularis Brevis)Lateral fibula (distal two-thirds)Fifth metatarsal base27Draft95%Peroneus Longus (Fibularis Longus)Head and upper two-thirds of lateral fibulaBase of 1st metatarsal and medial cuneiform (plantar surface)216Draft95%PiriformisAnterior surface of sacrum (S2-S4)Superior border of greater trochanter210Draft95%PlantarisLateral supracondylar line of femur, oblique popliteal ligamentCalcaneus (medial to Achilles tendon)14Draft90%PopliteusLateral femoral condyle, popliteofibular ligamentPosterior tibia (proximal 16.6-35.2% of tibial length)21Draft95%Posterior DeltoidSpine of scapulaDeltoid tuberosity of humerus338Draft95%Pronator QuadratusDistal anterior ulnaDistal anterior radius11Draft95%Pronator TeresMedial epicondyle of humerus (humeral head), coronoid process of ulna (ulnar head)Middle of lateral surface of radius24Draft95%Quadratus FemorisLateral border of ischial tuberosityIntertrochanteric crest and quadrate tubercle of femur14Draft95%Quadratus LumborumIliac crest, iliolumbar ligament12th rib, transverse processes of L1-L4231Draft95%Quadriceps FemorisRectus femoris: AIIS (straight head) and ilium above acetabulum (reflected head); Vasti: various surfaces of femoral shaftPatella via quadriceps tendon, then tibial tuberosity via patellar ligament269Draft95%Rectus AbdominisPubic symphysis, pubic crestCostal cartilages of ribs 5-7, xiphoid process244Draft95%Rectus FemorisAnterior inferior iliac spine (straight head) and ilium above acetabulum (reflected head)Patella via quadriceps tendon, then tibial tuberosity via patellar ligament232Draft95%Rhomboid MajorSpinous processes T2-T5Medial border of scapula (between spine and inferior angle)431Draft95%Rotatores (Thoracis)Transverse processes of thoracic vertebraeLamina and base of spinous process of vertebra 1-2 segments superior25Draft95%SartoriusAnterior superior iliac spineMedial surface of proximal tibia (pes anserinus)45Draft95%Scalene MusclesAnterior: anterior tubercles C3-C6; Middle: posterior tubercles C2-C7; Posterior: posterior tubercles C5-C7Anterior: first rib (scalene tubercle); Middle: first rib (posterior to subclavian groove); Posterior: second rib (outer surface)34Draft95%SemimembranosusIschial tuberosity (separate from conjoint tendon)Posterior medial tibial condyle with multiple expansions310Draft95%Semispinalis CapitisTransverse processes of C4-T6Between superior and inferior nuchal lines of occipital bone49Draft95%Semispinalis CervicisTransverse processes of T1-T6Spinous processes of C2-C512Draft95%Semispinalis ThoracisTransverse processes of T6-T12Spinous processes of C6-T423Draft95%SemitendinosusIschial tuberosity (conjoint tendon with biceps femoris long head)Medial surface of proximal tibia (pes anserinus)311Draft95%Serratus AnteriorRibs 1-9 (lateral surface)Medial border of scapula (upper part: superior angle; middle part: medial border; lower part: inferior angle)641Draft95%SoleusPosterior surface of fibular head, proximal tibia (soleal line)Calcaneus via Achilles tendon348Draft95%Splenius CapitisLower half of nuchal ligament and spinous processes of C7-T3Mastoid process and lateral superior nuchal line38Draft95%Splenius CervicisSpinous processes of T3-T6Posterior tubercles of C1-C3 transverse processes14Draft95%SternocleidomastoidSternal head: manubrium; Clavicular head: medial third of clavicleMastoid process, superior nuchal line513Draft95%Suboccipital MusclesRectus capitis posterior major: spinous process of C2; Rectus capitis posterior minor: posterior tubercle of C1; Obliquus capitis superior: transverse process of C1; Obliquus capitis inferior: spinous process of C2Rectus major: lateral inferior nuchal line; Rectus minor: medial inferior nuchal line; Obliquus superior: between superior and inferior nuchal lines; Obliquus inferior: transverse process of C127Draft95%SubscapularisSubscapular fossaLesser tuberosity of humerus717Draft95%SupinatorLateral epicondyle of humerus, supinator crest of ulnaLateral surface of proximal radius25Draft95%SupraspinatusSupraspinous fossa of scapulaGreater tuberosity of humerus (superior facet)319Draft95%Tensor Fasciae LataeAnterior superior iliac spine (ASIS) and outer lip of iliac crestIliotibial band (IT band)017Draft90%Teres MajorInferior angle and lower lateral border of scapulaMedial lip of intertubercular groove of humerus011Draft90%Teres MinorLateral border of scapulaGreater tuberosity of humerus (inferior facet)628Draft95%Tibialis AnteriorLateral tibial condyle, upper two-thirds of lateral tibial surface, interosseous membraneMedial cuneiform and base of 1st metatarsal331Draft95%Tibialis PosteriorPosterior tibia, fibula, and interosseous membraneNavicular tuberosity and plantar surfaces of cuneiforms and metatarsals 2-4217Draft95%Transversus AbdominisLateral third of inguinal ligament, iliac crest, thoracolumbar fascia, costal cartilages of ribs 7-12Linea alba, pubic crest, conjoint tendon; vertical dimension attaching to lumbar spine via thoracolumbar fascia averages 5.2 cm784Draft95%Triceps BrachiiLong head: infraglenoid tubercle; Lateral head: posterior humerus (above radial groove); Medial head: posterior humerus (below radial groove)Olecranon process of ulna228Draft95%Upper TrapeziusExternal occipital protuberance, medial superior nuchal line, ligamentum nuchae, C7 spinous processLateral third of clavicle, acromion13Draft95%Upper TrapeziusExternal occipital protuberance, medial superior nuchal line, ligamentum nuchae, C7 spinous processLateral third of clavicle, acromion537Draft95%Vastus IntermediusAnterior and lateral surface of femoral shaftPatella (deep layer) via quadriceps tendon; forms complex multi-layered structure with VM17Draft95%Vastus LateralisLateral lip of linea aspera, greater trochanter, intertrochanteric linePatella (lateral aspect) via quadriceps tendon; consists of superficial, intermediate, and deep layers19Draft95%Vastus MedialisMedial lip of linea aspera, intertrochanteric lineVML inserts at base of patella; VMO inserts at medial margin of patella; extensive insertion into vastus intermedius aponeurosis110Draft95%