LE OINAs Muscle Anatomy PDF

LE OINAs: Buttock & Posterior Thigh & Anterior Thigh & Medial Thigh Muscle Origin Insertion Innervation Action Picture...

LE OINAs: Buttock & Posterior Thigh & Anterior Thigh & Medial Thigh Muscle Origin Insertion Innervation Action Picture (proximal attachment) (distal attachment) Superficial Gluteus Maximus -Posterior iliac crest -Gluteal Tuberosity Inferior gluteal (L5, S1, Hip EXT -External surface ilium posterior (deep) S2) Hip ER to posterior gluteal line -Linea aspera of femur -Lateral sacrum -Iliotibial band into lateral -Coccyx condyle of tibia (gerdys -Sacrotuberous ligament tubercle) Gluteus Medius External surface of ilium Lateral surface of greater Superior gluteal (L4-S1) Hip ABD Superficial Buttock (between ant & post gluteal trochanter Hip IR lines and iliac crest) Gluteus Minimus External surface of ilium Anterior lateral surface of Superior gluteal (L4-S1) Hip ABD (between ant & inf gluteal line) greater trochanter Hip IR Tensor Fascia Lata (TFL) -Anterior iliac crest -IT Band Superior gluteal (L4-S1) Hip FL Deep TENS -Lateral aspect of ASIS -Ant aspect of lateral Hip ABD tibial condyle (gerdys Hip IR tubercle) Piriformis -Anterior lateral surface of -Superior aspect medial N to piriformis (S1,2) Hip ER sacrum greater trochanter Superior -Sacrotuberous ligament  Gemellus Superior Ischial spine Medial surface greater N to obturator internus Hip ER trochanter (trochanteric (L5, S1) Hip ABD (when hip is fossa) FL) Obturator Internus Internal surface obturator Medial surface greater N to obturator internus Hip ER membrane and foramen trochanter (trochanteric (L5, S1) Hip ABD (when hip is fossa) FL) Deep Buttock (PGOGOQ) Gemellus Inferior Upper lateral ischial tuberosity Medial surface greater N to quadratus femoris Hip ER trochanter (trochanteric (L5, S1) Hip ABD (when hip is fossa) FL) Obturator Externus External surface obturator Medial surface greater Obturator (L3, 4) Hip ER membrane and foramen trochanter (trochanteric fossa) Inferior Quadratus Femoris Lateral Ischial tuberosity Quadrate tubercle N to quadratus femoris Hip ER (intertrochanteric crest) (L5, S1) Hip ABD (when hip is FL) Semitendinosus Ischial Tuberosity Superior medial tibial Sciatic- tibial division (L5, Hip EXT shaft (pes anserine) S1, S2) Knee FL IR tibia (when knee is FL)  Semimembranosus Ischial tuberosity Posterior medial tibial Sciatic- tibial division (L5, Hip EXT condyle S1, S2) Knee FL Hamstrings IR tibia (when knee is FL) Biceps Femoris LH: ischial tuberosity Fibular head (splits LH: Sciatic- tibial division Hip EXT SH: linea aspera, lateral around fibular collateral (L5, S1, S2) Knee FL supracondylar ridge ligament) SH: Sciatic- common ER tibia (when knee is fibular (L5, S1, S2) FL) Psoas Major Bodies & TPs of T12-L5 Lesser trochanter Anterior primary rami Hip FL vertebrae L1-3 Trunk FL/Lateral FL Iliopsoas Group Iliacus Iliac fossa Lesser trochanter Femoral L2, 3 Hip FL Trunk FL  Pectineus Superior ramus of pubis Pectineal line of femur Femoral L2, 3 Hip ADD (occasionally obturator) Hip FL Sartorius ASIS Superior medial tibia (pes Femoral L2, 3 Hip FL “tailor’s muscle” anserine) Hip ABD Hip ER Knee FL Rectus Femoris -AIIS Tibial tuberosity via Femoral L2-4 Knee EXT *the only quad muscles that -ilium (superior to acetabulum) patella and patellar Hip FL crosses hip & knee tendon Vastus Intermedius Anterior & lateral shaft of femur Tibial tuberosity via Femoral L2-4 Knee EXT patella and patellar tendon Quadriceps Vastus Lateralis Lateral lip of linea aspera & Tibial tuberosity via Femoral L2-4 Knee EXT greater trochanter patella and patellar tendon  Vastus Medialis Medial lip of linea aspera Tibial tuberosity via Femoral L2-4 Knee EXT patella and patellar tendon Adductor Longus Body of pubis Middle line of linea Obturator L2-4 Hip ADD aspera Adductor Brevis Body & inferior ramus of pubis Pectineal line and Obturator L2-4 Hip ADD proximal part of linea aspera Adductors Gracilis Body & inferior ramus of pubis Tibia (pes anserine) Obturator L2, 3 Hip ADD Adductor Magnus -Inferior ramus of pubis, ramus, -Gluteal tuberosity Obturator L2-4 Hip ADD of ischium -Linea aspera Hamstring part: Tibial L4 Hamstring part: Hip -Hamstring part: ischial -medial supracondylar EXT tuberosity line -Hamstring part: adductor tubercle Leg Anterior compartment & Lateral compartment & Posterior compartment Muscle Origin Insertion Innervation Action Picture Tibialis Anterior -Lateral condyle of tibia -Medial cuneiform Deep Fibular L4,5 Ankle DFL & INV -Upper half of lateral surface of -Base of 1st MT tibia -Interosseous membrane Extensor Digitorum -Lateral condyle of tibia Middle & distal phalanges Deep Fibular L5, S1 Toe EXT (2-5) Longus -Upper ¾ of medial surface of of digits 2-5 Ankle DFL fibula -Interosseous membrane Extensor Hallucis -Middle part of anterior fibula Dorsal aspect of base of Deep Fibular L5, S1 Great Toe EXT Longus -Interosseous membrane distal phalanx of great toe Ankle DFL Fibularis Tertius -Inferior third of anterior fibula Dorsum of base of 5th MT Deep Fibular L5, S1 Weak DFL & EV *not present in all individuals -Interosseous membrane Extensor Digitorum Dorsum of calcaneus 2nd-4th toes via EDL Deep Fibular L5, S1 (Helps EDL w) toe 2-4 Brevis tendon EX at MTP & IP Extensor Hallucis Brevis Dorsum of calcaneus Base of proximal phalanx Deep Fibular L5, S1 (Helps EHL w) great toe of great toe EXT at MTP joing Fibularis Longus -Head of the fibula Base of 1st MT & medial Superficial Fibular L5, S1, Ankle EV -Proximal 2/3 of lateral fibula cuneiform S2 Fibularis Brevis Distal 2/3 of lateral fibula Tuberosity of 5th MT Superficial Fibular L5, Ankle EV w PFL S1, S2  Gastrocnemius -Medial Head: Medial femoral Calcaneus via achilles Tibial S1,2 Ankle PFL condyle tendon (weak Knee FL) -Lateral Head: Lateral femoral condyle Superficial Layer Soleus -Upper part of fibula Calcaneus via achilles Tibial S1,2 Ankle PFL -Tibia on soleal line tendon Plantaris Lateral femoral condyle Calcaneus via achilles Tibial S1,2 Weak Ankle PFL & Knee *the fool’s nerve tendon FL Popliteus -Lateral condyle of femur Posterior surface of tibia Tibial L4, L5, S1 -Medial rotation of tibia -Lateral meniscus above soleal line (unlocks the knee) -Pulls lateral meniscus posteriorly -Weak knee FL  Flexor Digitorum Medial part of posterior surface Bases of distal phalanges Tibial S2,S3 Toe FL Deep Layer Longus of the tibia of toes 2-5 Ankle PFL Flexor Hallucis Longus -Inferior 2/3 of posterior fibula Base of distal phalanx of Tibial S2, S3 Great toe FL -Interosseus membrane great toe Ankle PFL Tibialis Posterior -Posterior surface of All 5 tarsal bones & MTs Tibial L4, L5 Ankle INV w PFL Interosseous membrane 2-4 -Adjacent surfaces of tibia and fibula  Foot Layer 1 & Layer 2 & Layer 3 & Layer 4 Muscle Origin Insertion Innervation Action Picture Flexor Digitorum Brevis -Medial tubercle of calcaneus Middle phalanx digit 2-5 Medial plantar S2,3 Digits 2-5 FL -Plantar aponeurosis Abductor Hallucis Medial tubercle of calcaneus Medial side base of Medial plantar S2,3 Great toe ABD Layer 1 proximal phalanx 1st digit Abductor Digiti Minimi Medial & lateral tubercle of Lateral base of proximal Later plantar S2,3 5th Digit ABD calcaneus phalanx 5th digit Quadratus Plantae Medial & lateral plantar Posterolateral margin of Lateral Plantar S2,3 Assists FDL in Digits 2-5 FL calcaneus FDL tendon (redirects line of pull) Layer 2 Lumbricals Tendons of FDL Medial aspect of extensor Medial one: medial MCP joints 2-5 FL expansison digits 2-5 plantar S2,3 PIP & DIP EXT Lateral one: lateral plantar S2,3  Flexor Hallucis Brevis Plantar surface cuboid & lateral Both sides of base of Medial Plantar S2,3 Great toe FL cuneiforms proximal phalanx of 1st digit Layer 3 Adductor Hallucis Oblique Head: bases of MT 2-4 Tendons attach to lateral Lateral plantar S2,3 Great toe ADD Transverse Head: Plantar side of base of proximal ligaments of MTP joints phalanx 1st digit Flexor Digiti Minimi Base of 5th MT Base of proximal phalanx Lateral Plantar S2,3 5Th digit FL Brevis 5th digit Plantar Interossei Bases & medial side of MT 3-5 Medial sides of bases of Lateral Plantar S2,3 Digits 3-5 ADD proximal phalanges 3-5 Layer 4 Dorsal Interossei Adjacent sides of MT 1-5 1st: medial side of Lateral Plantar S2,3 Digits 2-4 ABD proximal phalanx of 2nd digit 2nd-4th: lateral sides of 2-4 digits  Femoral Triangle MEMITENS Borders Contents - NAVEL Triceps Coxae Pes anserine- SGT Gluteus MEdius Base- Inguinal ligament Femoral Nerve gemellus superior Sartorius Gluteus MInimus Lateral- sartorius muscle Femoral Artery obturator internus Gracilis Tensor Fascia Late (TENS) Medial- adductor longus muscle Femoral Vein gemellus inferior SemiTendinosus Floor- iliopsoas (lateral) and pectineus Empty Space (medial) Lymph nodes Hip ABD & IR Roof- fascia latae Superior gluteal n. (L4-S1) ilio ps N oa AV *Opening in roof- great saphenous vein s EL Tarsal Tunnel – Tom Dick And Nervous Harry pe cti Tibialis Posterior ne us Flexor Digitorum Longus Posterior Tibial Artery Popliteal Fossa Tibial Nerve Borders Contents Flexor Hallicus Longus Semitendinosus Tibial nerve Semimembranosus Popliteal artery & vein Adductor Canal Gastrocnemius MH Common fibular (peroneal) nerve Borders Contents Gastrocnemius LH Small saphenous vein Ant/Lat- vastus medialis Femoral artery Biceps Femoris Sural nerve branches Post- adductor longus & magnus Femoral vein Med/roof- sartorius Saphenous vein popliteus *artery & vein exit thru adductor hiatus to become popliteal artery & vein Adductor Hiatus -Femoral artery & vein pass thru to enter popliteal region -> changes name to popliteal artery & vein -Saphenous nerve remains superficial-> provides sensation to anteromedial knee leg & foot Greater Sciatic Forman Lesser Sciatic Forman Borders Contents Borders Contents Greater sciatic notch Piriformis Lesser sciatic notch Tendon of obturator internus (enter) Ligaments- sacrotuberous, Gluteal nerves (exit) Ischial spine Nerve to obturator internus (enter) sacrospinous, and SI Pudenal nerves (exit) Ischial tuberosity Internal pudenal vessels Sciatic nerve Ligaments- Sacrotuberous & Pudenal nerve (enter) Nerve to obturator internus (gem sup) sacrospinous Nerve to quadratus femoris (gem inf)