Lower Limb Muscles Masterlist PDF

MUSCLE ORIGIN ATTACHMENT MOVEMENT INNERVATION Gluteus maximus Posterior gluteal line of Gluteal tuberosity of Extensors and Inferior gluteal nerve the ilium, dorsal surface femur...

MUSCLE ORIGIN ATTACHMENT MOVEMENT INNERVATION Gluteus maximus Posterior gluteal line of Gluteal tuberosity of Extensors and Inferior gluteal nerve the ilium, dorsal surface femur and into iliotibial abductors and medial of sacrum and coccyx tract rotators of the thigh and sacrotuberous ligament Gluteus medius External surface of ilium Lateral surface of Abduct and medially Superior gluteal nerve between anterior and trochanter femur rotate thigh posterior gluteal line Gluteus minimus Anterior surface of greater trochanter of femur piriformis Anterior surface of Superior border of Lateral rotators of thigh L5 S1 S2 sacrum greater trochanter Obturator internus Obturator membrane Medial surface of Nerve to obturator surrounding bone greater trochanter internus Gemellus superior Ischial spine Gemellus inferior Nerve to quadratus femoris Quadratus femoris Lateral aspect of ischial Quadrate tubercle of tuberosity intertrochanteric crest Biceps femoris Long head: Ischial Lateral aspect of head Flexes leg and laterally Long: Sciatic division of tuberosity of fibula rotates knee tibial nerve Short head: linea Short: common fibular aspera and lateral division supracondylar line Semitendinosus Ischial tuberosity Medial surface of Flex and medially rotate Tibial division of sciatic proximal tibia leg nerve Semimembranosus Medial tibial condyle Flex and medially rotate leg Iliopsoas muscle Transverse processes, Lesser trochanter of Powerful flexor of thigh Psoas major: anterior (iliacus in iliac fossa) bodies and IV discs of femur at hip joint rami L1-L3 TXII and L V vertebra Iliacus: femoral nerve Tensor fascia latae Outer margin of iliac Iliotibial tract Stabilizes the knee and Superior gluteal nerve crest hip joint Sartorius Anterior superior iliac Pes anserinus Assist in flexion of thigh Femoral nerve spine at hip and leg at knee joint Rectus femoris Anterior inferior iliac Tibial tuberosity Powerful extensor of leg spine at knee joint (RF flexes thigh at hip) Vastus lateralis Intertrochanteric line, greater trochanter, gluteal tuberosity, linea aspera Vastus medialis Intertrochanteric line, linea aspera, medial supracondylar line Vastus intermedius Upper anterior and lateral femur gracilis Pubic bone Pes anserinus on Adductor of thigh at hip Obturator nerve medial proximal tibia and flexor of leg at hip pectineus Pecten pubis Pectineal line Adductor of thigh at hip Adductor longus Anterior surface of Linea aspera pubic bone Adductor brevis Body of pubis Upper linea aspera Adductor magnus Adductor: ishchiopubic Adductor: linea aspera Adduct and medially Adductor: obturator ramus Hamstring: adductor rotates thigh at hip nerve Hamstring: ischial tubercle Hamstring: sciatic nerve tuberosity Obturator externus Outer surface of Trochanteric fossa Lateral rotator of thigh Obturator nerve obturator membrane at hip Tibialis anterior Lateral condyle of tibia Inferior surface of Inverts foot, lift medial Deep fibular nerve medial cuneiform and part of foot from ground, first metatarsal bone dorsiflexor of ankle Extensor digitorum Fibula and interosseous Base of distal Dorsiflexion at ankle longus membrane phalanges of lateral 4 and extensor of 4 lateral toes of foot toes Fibularis tertius Extensor digitorum Base of 5th metatarsal Weak extensor longus Extensor hallucis Interosseous Distal phalanx of big toe dorsiflexion longus membrane Fibularis longus Head of fibula Sole of the foot, medial Supports transverse Superficial fibular nerve cuneiform and first arch of foot, eversion of metatarsal bone foot Fibularis brevis Interosseous Tuberosity of 5th Eversion of foot membrane and fibula metatarsal bone Gastrocnemius Medial and lateral Calcaneus Powerful plantar flexors Tibial nerve epicondyle, superior to condyle of femur Soleus Below soleal line of posterior tibia Plantaris Lateral epicondyle and Weak flexor at knee, superior to lateral plantar flexion at ankle supracondylar line Popliteus Lateral side of lateral Posterior surface of Laterally rotates femur condyle of femur tibia, superior to soleal on tibia, unlocks knee line Tibialis posterior Tibia and fibula and Tuberosity of navicular Inversion and plantar interosseous membrane bone and medial flexion of the foot cuneiform Flexor digitorum longus Tibia Base of the distal Flexes lateral 4 toes phalanges of lateral 4 toes Flexor hallucis longus Lateral side of middle Base of distal phalanx Flexes hallux, last part and distal leg on fibula of hallux of the foot to leave the ground Trapezius Spinous process of Lateral ⅓ of clavicle, Elevate retract depress Accessory nerve C7-T12 Vertebrae acromion, spine of scapula scapula Levator Scapulae Transverse processes Superior angle of Elevate scapula Dorsal scapular nerve of C1-C2 scapula Rhomboid minor and Spinous process of Medial border of the Retract and rotate major C7-T5 scapula scapula Latissimus Dorsi Spinous process of Floor of intertubercular Extend and adduct and Thoracodorsal nerve lower 6 thoracic groove of humerus medially rotate humerus vertebrae Serratus posterior Nuchal ligament, External surface of Elevate ribs, accessory Anterior rami of thoracic superior spinous process of 2nd-5th rib of muscle of inspiration spinal nerves C7-T3 Serratus posterior Spinous process of External surface of Depress ribs and inferior T11-T12 9th-12th prevents elevation when diaphragm contracts Splenius Capitis Spinous process of Mastoid process and Indiv:Turns face to the Posterior rami of spinal upper 4 thoracic superior nuchal line on same side and nerves vertebrae and lower occipital bone Together: extends head nuchal ligament and neck Splenius Cervicis Spinous process of Transverse process of T3-T6 thoracic upper 3 cervical vertebrae vertebrae Erector spinae: Broad tendons Transverse process of Extend vertebral Iliocostalis, attaching to the iliac C4-C6, C7 column and head, Longissimus, crest and posterior lateral flexion Spinalis aspect of sacrum, Upper thoracic vertebral sacroiliac ligament, spine medial sacral crest, spinous process of lower lumbar vertebrae Transversopinales: Transverse process of Spinous process of Stability and Semispinales, vertebrae vertebrae above proprioception multifidus, rotatores Segmental: levatores Sensors or costarum, interspinales, proprioception, lateral intertransversarii flexion of trunk Suboccipital muscles: OCF: spinous process OCF: transverse Extensors and lateral Suboccipital nerve* Obliquus capitis C2 process C1 flexors of head superior and inferior, RCP: axis spinous RCP: nuchal line of Rectus capitis posterior process occipital bone minor and major Sternocleidomastoid Sternum and clavicle Mastoid princess and Neck flexion and lateral Accessory nerve and superior nuchal line flexion and rotation of C2-C3 nerves for neck sensory Prevertebral muscles: Flexion of head and Anterior rami of cervical longus capitis and colli, neck and longus coli spinal nerves Rectus capitis anterior rotates neck (unilateral) and lateralis Scaleni muscles: Ant: anterior tubercle of Ant: scalene tubercle of Elevates first rib, lateral Ant transverse process 1st rib flexion and neck Mid C3-C3 Mid: 1st rib rotation Post Mid: C2 TP and Post: 2nd rib Posterior tubercle of C3-C7 Post: Posterior tubercle of C4-C6 Muscles of the Trunk muscle origin insertion function innervation Psoas Major and Minor Major: posteriorly to Lesser trochanter of Flexor of thigh at hip Anterior rami of lumbar vertebral bodies and femur and vertebral column plexus (L1-L4) discs L1-L4 (unilaterally) Quadratus lumborum Rib 12 and tips of Iliac crest Extensor of vertebral transverse process of column and lateral L1-L4 flexion (unilaterally) Iliacus Iliac fossa Lesser trochanter of Flexor of thigh at hip Femoral nerve femur and vertebral column (unilaterally) External oblique Outer surface of Linea alba and inguinal Flexes trunk Anterior rami T7-T11, 5th-12th rib ligament attaches onto subcostal nerve, ASIS and pubic tubercle iliohypogastric and to iliac crest ilioinguinal nerves Internal oblique Iliac crest and lateral Lower ribs and linea part of inguinal ligament alba Transversus abdominis Posteroinferior Linea alba thoracolumbar fascia and ribs and iliac crest Rectus Abdominis Pubic crest and Xiphoid process and symphysis 5th-7th costal cartilage