§ 02 · The plate
The anatomy module
interactive · hover · click
⌨ press f / b / d

A live anatomical reference — 43 muscles on the interactive plate. Hover any group to identify; click to open its prescription — function, clinical pattern, and the classical Pilates exercises that recruit it. Toggle the layer to surface the deep core — transversus abdominis, the diaphragm and the multifidi — that most platforms hide. The complete muscle atlas follows below.

§ 02 · Appendix

The complete muscle atlas

Every muscle of the human movement system, grouped by region — the full reference behind the interactive plate above. Names marked on the plate are explorable; the rest are catalogued here for completeness.

01 Head & Neck
Head and neck muscle anatomy diagram
  • Platysmadepresses the jaw & lower lip
  • Sternocleidomastoidflexes & rotates the head
  • Levator scapulaeelevates the scapula
  • Longus colliflexes & side-bends the neck
  • Splenius capitisrotates & extends the head
  • Semispinalis capitisextends the head & neck
02 Back & Spine
Back and spine muscle anatomy diagram
Superficial

Trapezius · Latissimus dorsi · Deltoid

Deep · erector spinae

Iliocostalis (lumborum, thoracis, cervicis) · Longissimus (thoracis, cervicis, capitis) · Spinalis (thoracis, cervicis, capitis) · Quadratus lumborum

Deepest layer

Multifidus · Rotatores · Interspinales · Intertransversarii

03 Respiration
Respiratory muscles anatomy diagram
  • Diaphragmprimary muscle of inhalation
  • External intercostalselevate the ribs · inhalation
  • Internal intercostalsdepress the ribs · exhalation
  • Transversus thoracisaccessory expiration
  • Scalenesaccessory inspiration
04 Abdominals
Abdominal muscles anatomy diagram
  • Rectus abdoministrunk flexion
  • External obliquerotation & lateral flexion
  • Internal obliquerotation & lateral flexion
  • Transversus abdoministhe deep core corset
  • Pyramidalistenses the linea alba
  • Psoas majorflexes the trunk & thigh
05 Shoulder & Chest
Shoulder and chest muscle anatomy diagram
Scapular movers

Pectoralis minor · Subclavius · Trapezius · Levator scapulae · Rhomboid major · Rhomboid minor · Serratus anterior

Humeral movers

Pectoralis major · Latissimus dorsi · Deltoid · Coracobrachialis · Teres major

Rotator cuff

Subscapularis · Supraspinatus · Infraspinatus · Teres minor

06 Arm, Forearm & Hand
Arm, forearm and hand muscle anatomy diagram
Upper arm

Biceps brachii · Brachialis · Triceps brachii

Forearm · rotation

Supinator · Pronator teres · Pronator quadratus

Forearm · flexors

Flexor carpi radialis · Palmaris longus · Flexor carpi ulnaris · Flexor digitorum superficialis · Flexor digitorum profundus · Flexor pollicis longus

Forearm · extensors

Extensor carpi radialis longus & brevis · Extensor digitorum · Extensor digiti minimi · Extensor carpi ulnaris · Extensor pollicis longus & brevis · Abductor pollicis longus · Extensor indicis

Hand · thenar

Abductor pollicis brevis · Flexor pollicis brevis · Opponens pollicis

Hand · intermediate

Lumbricals 1–4 · Adductor pollicis · Palmar interossei 1–3 · Dorsal interossei 1–4

Hand · hypothenar

Palmaris brevis · Abductor digiti minimi · Flexor digiti minimi · Opponens digiti minimi

07 Hip & Pelvis
Hip and pelvis muscle anatomy diagram
Pelvic floor

Levator ani · Coccygeus

Gluteals

Gluteus maximus · Gluteus medius · Gluteus minimus

Deep lateral rotators

Piriformis · Obturator internus & externus · Superior & inferior gemellus · Quadratus femoris

Hip

Tensor fasciae lataehip flexion & abduction

08 Thigh
Thigh muscle anatomy diagram
Anterior · quadriceps femoris

Rectus femoris · Vastus lateralis · Vastus medialis · Vastus intermedius

Anterior · other

Sartorius · Iliopsoas (psoas major + iliacus)

Medial · adductors

Adductor magnus · Adductor longus · Adductor brevis · Pectineus · Gracilis

Posterior · hamstrings

Biceps femoris · Semitendinosus · Semimembranosus

09 Lower Leg & Foot
Lower leg and foot muscle anatomy diagram
Anterior leg

Tibialis anterior · Extensor hallucis longus · Extensor digitorum longus · Peroneus tertius

Lateral leg

Peroneus longus · Peroneus brevis

Posterior leg · superficial

Gastrocnemius · Soleus · Plantaris

Posterior leg · deep

Popliteus · Flexor hallucis longus · Flexor digitorum longus · Tibialis posterior

Foot · dorsal

Extensor digitorum brevis · Extensor hallucis brevis

Foot · plantar

Abductor hallucis · Flexor digitorum brevis · Abductor digiti minimi · Quadratus plantae · Lumbricals 1–4 · Flexor hallucis brevis · Adductor hallucis · Flexor digiti minimi brevis · Dorsal interossei 1–4 · Plantar interossei 1–3