Muscle Library
All 300 skeletal muscles — origin, insertion, action & nerve.
Explore every muscle grouped by region. Each page covers the four pillars — Origin, Insertion, Action and Nerve — with a memory-friendly overview and FAQs. All pages are free, no account required.
Upper Limb 62
Shoulder & Scapula
Forearm
- Brachioradialis
- Pronator Teres
- Flexor Carpi Radialis
- Palmaris Longus
- Flexor Carpi Ulnaris
- Flexor Digitorum Superficialis
- Flexor Digitorum Profundus
- Flexor Pollicis Longus
- Pronator Quadratus
- Extensor Carpi Radialis Longus
- Extensor Carpi Radialis Brevis
- Extensor Digitorum
- Extensor Carpi Ulnaris
- Supinator
- Abductor Pollicis Longus
- Extensor Digiti Minimi
- Extensor Indicis
- Extensor Pollicis Brevis
- Extensor Pollicis Longus
Hand
- Abductor Pollicis Brevis
- Adductor Pollicis
- First Dorsal Interosseous (Hand)
- Second Dorsal Interosseous (Hand)
- Third Dorsal Interosseous (Hand)
- Fourth Dorsal Interosseous (Hand)
- First Palmar Interosseous (Hand)
- Second Palmar Interosseous (Hand)
- Third Palmar Interosseous (Hand)
- First Lumbrical (Hand)
- Second Lumbrical (Hand)
- Third Lumbrical (Hand)
- Fourth Lumbrical (Hand)
- Opponens Pollicis
- Flexor Pollicis Brevis
- Palmaris Brevis
- Abductor Digiti Minimi (Hand)
- Flexor Digiti Minimi Brevis (Hand)
- Opponens Digiti Minimi (hand)
- Pollical Palmar Interosseus (of the Thumb)
Lower Limb 63
Gluteal & Hip
Thigh
Leg
Foot
- Extensor Digitorum Brevis
- Extensor Hallucis Brevis
- First Dorsal Interosseous (Foot)
- Second Dorsal Interosseous (Foot)
- Third Dorsal Interosseous (Foot)
- Fourth Dorsal Interosseous (Foot)
- Abductor Hallucis
- Flexor Digitorum Brevis
- Abductor Digiti Minimi (Foot)
- Abductor Ossis Metatarsi Quinti (Foot)
- Quadratus Plantae
- First Lumbrical (Foot)
- Second Lumbrical (Foot)
- Third Lumbrical (Foot)
- Fourth Lumbrical (Foot)
- Flexor Hallucis Brevis
- Adductor Hallucis
- Flexor Digiti Minimi Brevis (Foot)
- Opponens Digiti Minimi (Foot)
- First Plantar Interosseous (Foot)
- Second Plantar Interosseous (Foot)
- Third Plantar Interosseous (Foot)
Trunk 67
Back
- Trapezius
- Latissimus Dorsi
- Erector Spinae
- Splenius Capitis
- Iliocostalis Cervicis
- Iliocostalis Lumborum
- Iliocostalis Thoracis
- Longissimus Capitis
- Longissimus Cervicis
- Longissimus Thoracis
- Longissimus Thoracis (Lumbar Part)
- Spinalis Capitis
- Spinalis Cervicis
- Spinalis Thoracis
- Semispinalis Thoracis
- Semispinalis Cervicis
- Semispinalis Capitis
- Multifidus Lumborum
- Multifidus Thoracis
- Multifidus Cervicis
- Rotatores Longi (Thoracis)
- Rotatores Breves (Thoracis)
- Rotatores Lumborum
- Rotatores Cervicis
- Interspinales Lumborum 1–4
- Interspinales Thoracis 1–3
- Interspinales Cervicis 1–6
- Intertransversarii Anteriores Cervicis 1–7
- Intertransversarii Posteriores Laterales Cervicis 1–7
- Intertransversarii Posteriores Mediales Cervicis 1–7
- Intertransversarii Laterales Lumborum (Dorsal Parts) 1–5
- Intertransversarii Laterales Lumborum (Ventral Parts) 1–5
- Intertransversarii Mediales Lumborum 1–5
- Intertransversarii Thoracis 1–9
- Splenius Cervicis
Thorax
Abdomen
Pelvis & Perineum
- Coccygeus
- Iliococcygeus
- Pubococcygeus
- Puboanalis (Puborectalis)
- Puboperinealis
- Puboprostaticus (males) / Pubovaginalis (females)
- External Anal Sphincter (Subcutaneous, Superficial and Deep Parts)
- Superficial Transverse Perineal
- Bulbospongiosus
- Ischiocavernosus
- Deep Transverse Perineal
- Compressor Urethrae
- Sphincter Urethrovaginalis
- External Urethral Sphincter
Head & Neck 108
Neck
- Sternocleidomastoid
- Scalenus Anterior
- Scalenus Medius
- Scalenus Posterior
- Digastric
- Mylohyoid
- Stylohyoid
- Geniohyoid
- Sternohyoid
- Sternothyroid
- Thyrohyoid
- Omohyoid (Superior Belly)
- Omohyoid (Inferior Belly)
- Levator Glandulae Thyroideae
- Longus Colli
- Longus Capitis
- Anterior Rectus Capitis
- Lateral Rectus Capitis
- Scalenus Minimus
- Superior Obliquus Capitis
- Inferior Obliquus Capitis
- Rectus Capitis Posterior Minor
- Rectus Capitis Posterior Major
Facial Expression
- Platysma
- Orbicularis Oculi
- Orbicularis Oris
- Buccinator
- Occipitofrontalis
- Zygomaticus Major
- Occipitalis
- Frontalis
- Corrugator Supercilii
- Depressor Supercilii
- Procerus
- Depressor Septi Nasi
- Levator Labii Superioris Alaeque Nasi
- Nasalis (Transverse Part)
- Nasalis (Alar Part)
- Levator Anguli Oris
- Depressor Anguli Oris
- Transversus Menti
- Levator Labii Superioris
- Depressor Labii Inferioris
- Mentalis
- Risorius
- Zygomaticus Minor
Extraocular
Ear
Tongue
Pharynx
- Stylopharyngeus
- Salpingopharyngeus
- Inferior Pharyngeal Constrictor (Thyropharyngeal Part)
- Inferior Pharyngeal Constrictor (Cricopharyngeal Part)
- Middle Pharyngeal Constrictor (Chondropharyngeal Part)
- Middle Pharyngeal Constrictor (Ceratopharyngeal Part)
- Superior Pharyngeal Constrictor (Pterygopharyngeal Part)
- Superior Pharyngeal Constrictor (Buccopharyngeal Part)
- Superior Pharyngeal Constrictor (Mylopharyngeal Part)
- Superior Pharyngeal Constrictor (Glossopharyngeal Part)