Anki LL muscles Flashcards
Psoas Major Origin: Insertion: Innervation: Movement:
Psoas Major (Anterior gluteal) Origin: Transverse processes, bodies, and intervertebral bodies of T12-L5 Insertion: Lesser trochanter of femur Innervation: L1-L3 Movement: Flexion of thigh to trunk and vice versa (HIP)
Iliacus Origin: Insertion: Innervation: Movement:
Iliacus (Anterior gluteal) Origin: Iliac fossa Insertion: Lesser trochanter of femur (via tendon of psoas major) Innervation: Femoral nerve Movement: Flexon of thigh to trunk and vice versa (HIP)
GracilisOrigin: Insertion: Innervation: Movement:
Gracilis (Medial gluteal) Origin: Ischiopublic ramus Insertion: Upper part of shaft of tibia (pes anserinus) Innervation: Obturator nerve Movement: - Adduction at HIP - Flexion and medial rotation at KNEE
Adductor magnus Origin: Insertion: Innnervation: Action:
Adductor magnus (Medial gluteal + Posterior thigh) Origin: Adductor: Ischiopubic ramus Hamstring: Ischial tuberosity Insertion: Adductor: Linea aspera (posterior femoral shaft) Hamstring: Adductor tubercle on femur Innervation: Adductor: Obturator nerve Hamstring: Sciatic nerve Movement: Both: Adduction and lateral rotation at HIP Adductor: Flexion at HIP Hamstring: Extension at HIP
Adductor brevis Origin: Insertion: Innnervation: Action:
Adductor brevis (Medial gluteal) Origin: Ischiopubic ramus Insertion: Linea aspera (posterior femoral shaft) Innervation: Obturator nerve Movement: Adduction and lateral rotation at HIP
Adductor longus Origin: Insertion: Innnervation: Movement:
Adductor longus (Medial gluteal) Origin: Ischiopubic ramus Insertion: Linea aspera (posterior femoral shaft) Innervation: Obturator nerve Movement: Adduction and lateral rotation at HIP
Pectineus Origin: Insertion: Innnervation: Movement:
Pectineus (Medial gluteal) Origin: Superior pubic ramus Insertion: Upper end of linea aspera (pectineal line) Innervation: Femoral nerve Movement: Adduction and flexion at HIP
Gemellus superior Origin: Insertion: Innnervation: Movement:
Gemellus superior (Posterior deep gluteal) Origin: Ischial spine Insertion: Merges with gemellus inferior and obturator internus to form triceps coxae which inserts into upper border of greater trochanter of femur Innervation: Sacral plexus Movement: Lateral rotation at hip
Gemellus inferior Origin: Insertion: Innnervation: Movement:
Gemellus inferior (Posterior deep gluteal) Origin: Ischial tuberosity Insertion: Merges with gemellus superior and obturator internus to form triceps coxae which inserts into upper border of greater trochanter of femur Innervation: Sacral plexus Movement: Lateral rotation at HIP
Obturator Internus Origin: Insertion: Innnervation: Movement:
Obturator Internus (Posterior deep gluteal) Origin: Inner surface of obturator membrane Insertion: Merges with gemellus superior and gemellus inferior to form triceps coxae which inserts into upper border of greater trochanter of femur Innervation: Sacral plexus Movement: Lateral rotation at HIP
Obturator externus Origin: Insertion: Innnervation: Movement:
Obturator externus (Posterior deep gluteal) Origin: Outer surface of obturator membrane and margins of obturator foramen Insertion: Upper border of greater trochanter of femur Innervation: Sacral plexus Movement: Lateral rotation at HIP
Piriformis Origin: Insertion: Innnervation: Movement:
Piriformis (Posterior deep gluteal) Origin: Anterior surface of sacrum Insertion: Upper border of the greater trochanter of the femur Innervation: Sacral plexus Movement: Lateral rotation at HIP
Quadratus femoris Origin: Insertion: Innnervation: Movement:
Quadratus femoris (Posterior deep gluteal) Origin: Lateral surface of ischial tuberosity Insertion: Quadratus tubercle (intertrochanteric crest) on femur Innervation: Sacral plexus Movement: Lateral rotation at HIP
Gluteus maximus Origin: Insertion: Innnervation: Movement:
Gluteus maximus (Posterior superficial gluteal) Origin: - Outer region of ilium - Sacrum and coccyx - Part of the sacrotuberous ligament Insertion: - Gluteal tuberosity on femur - Lateral condyle of tibia via iliotibial tract (tendon) Innervation: Inferior gluteal nerve Movement: - Extension and lateral rotation at HIP - Extension at KNEE (via iliotibial tract)
Gluteus medius Origin: Insertion: Innnervation: Movement:
Gluteus medius (Posterior superficial gluteal) Origin: Outer surface of ilium (between posterior and anterior gluteal lines) Insertion: Lateral to greater trochanter of femur Innervation: Superior gluteal nerve Movement: Abduction and medial rotation at HIP
Gluteus minimus Origin: Insertion: Innnervation: Movement:
Gluteus minimus (Posterior superficial gluteal) Origin: Outer surface of ilium (between anterior and inferior gluteal lines) Insertion: Anterior surface of greater trochanter of femur Innervation: Superior gluteal nerve Movement: Abduction and medial rotation at HIP
Tensor fascia latae Origin: Insertion: Innnervation: Movement:
Tensor fascia latae (lateral gluteal) Origin: Iliac crest and ASIS Insertion: Lateral condyle of tibia (via iliotibial tract) Innervation: Superior gluteal nerve Movement: Flexion and medial rotation at HIP Extension at KNEE
Vastus medialis Origin: Insertion: Innervation: Movement:
Vastus medialis (Anterior thigh) Origin: Intertrochanteric line, linea aspera, medial supracondylar line of FEMUR Insertion: Form quadriceps tendon which inserts onto patella than onto tibial tuberosity via patella ligament Innervation: Femoral nerve Movement: Extension at KNEE
Vastus intermedius Origin: Insertion: Innervation: Movement:
Vastus intermedius (DEEP Anterior thigh) Origin: Anterior and lateral surface of FEMUR Insertion: Form quadriceps tendon which inserts onto patella than onto tibial tuberosity via patella ligament Innervation: Femoral nerve Movement: Extension at KNEE
Vastus lateralis Origin: Insertion: Innervation: Movement:
Vastus lateralis (Anterior thigh) Origin: Greater trochanter, intertrochanteric line, lateral lip of linea aspera of FEMUR Insertion: Form quadriceps tendon which inserts onto patella than onto tibial tuberosity via patella ligament Innervation: Femoral nerve Movement: Extension at KNEE
Rectus femoris Origin: Insertion: Innervation: Movement:
Rectus femoris (Anterior thigh) Origin: - Straight: AIIS - Reflected: Groove superior to acetabulum Insertion: Form quadriceps tendon which inserts onto patella than onto tibial tuberosity via patella ligament Innervation: Femoral nerve Movement: - Extension at KNEE - Flexion at HIP*
Sartorius Origin: Insertion: Innervation: Movement:
Sartorius (Anterior thigh) Origin: ASIS Insertion: Medial surface of proximal tibia (pes anserinus) Innervation: Femoral nerve Movement: - Flexion, abduction, lateral rotation at HIP - Flexion, medial rotation at KNEE
Biceps femoris Origin: Insertion: Innervation: Movement:
Biceps femoris (Posterior thigh) Origin: - Long head: Ischial tuberosity - Short head: Lateral lip of linea aspera Insertion: Lateral surface of FIBULA head Innervation: SCIATIC nerve - Long head: Tibial branch - Short head: Common fibular nerve Movement: - Extension at HIP - Flexion and lateral rotation at KNEE
Semi-tendinosus (superficial) Origin: Insertion: Innervation: Movement:
Semi-tendinosus (SUPERFICIAL posterior thigh)Origin: Ischial tuberosity Insertion: Medial surface of proximal tibia (pes anserinus) Innervation: SCIATIC Nerve - tibial branch Movement: - Flexion and medial rotation at KNEE - Extension at HIP
Semi-membranosus Origin: Insertion: Innervation: Movement:
Semi-membranosus (Posterior thigh) Origin: Superior and lateral surface of ischial tuberosity Insertion: Posterior surface of medial condyle of tibia Innervation: SCIATIC nerve - tibial brach Movement: - Flexion and medial rotation at KNEE - Extension at HIP
Tibialis anterior Origin: Insertion: Innervation: Movement:
Tibialis anterior (Anterior leg) Origin: Lateral condyle and upper 2/3 of TIBIA, interosseous mb Insertion: Medial cuneiform and MT 1 Innervation: Deep fibular nerve Movement: - Extends foot at ankle - Inverts foot - Holds up medial arch
Extensor digitorum longus Origin: Insertion: Innervation: Movement:
Extensor digitorum longus (Anterior leg) Origin: Lat condyle of TIBIA, interosseous mb, shaft of FIBULA Insertion: Middle and distal phalanges 2-5 Innervation: Deep fibular nerve Movement: - Extends toes - Extend foot at ankle - Inverts foot (medial tendons) - Everts foot (lateral tendons)
Extensor hallucis longus Origin: Insertion: Innervation: Movement:
Extensor hallucis longus (Anterior leg) Origin: Ant FIBULA surface, interosseous mb Insertion: Distal phalanx of big toe (hallux) Innervation: Deep fibular nerve Movement: - Extends big toe - Extends foot at ankle - Inverts foot
Fibularis tertius Origin: Insertion: Innervation: Movement:
Fibular tertius (Anterior leg) Origin: Medial lower 1/3 of ant FIBULA and interosseous mb Insertion: Dorsal surface of MT 5 Innervation: Deep fibular nerve Movement: - Extends foot at ankle - Everts foot
Fibularis brevis Origin: Insertion: Innervation: Movement:
Fibular brevis (Lateral leg) Origin: Lat surface of fibula Insertion: Base of MT 5 Innervation: Superficial fibular nerve Movement: - Plantar flexes foot - Everts foot - Supports arch
Fibularis longus Origin: Insertion: Innervation: Movement:
Fibular longus (Lateral leg) Origin: Head and lateral surface of FIBULA Insertion: (goes below feet) Medial cuneiform and MT 1 Innervation: Superficial fibular nerve Movement: - Plantar flexes foot - Everts foot - Supports arch
Soleus Origin: Insertion: Innervation: Movement:
Soleus (Posterior superficial leg) Origin: Proximal ¼ of FIBULA, middle 1/3 of TIBIA Insertion: Via tendo calcaneus (Achilles tendon) into posterior calcaneus with gastrocnemius and plantaris Innervation: SCIATIC nerve - Tibial branch Movement: - Plantar flexes foot
Gastrocnemius Origin: Insertion: Innervation: Movement:
Gastrocnemius (Posterior superficial leg) Origin: Medial and lateral condyles of FEMUR Insertion: Via tendo calcaneus (Achilles tendon) into posterior calcaneus with soleus and plantaris Innervation: SCIATIC nerve - Tibial branch Movement: - Plantar flexes foot - Flexes knee
Plantaris Origin: Insertion: Innervation: Movement:
Plantaris (Posterior superficial leg) *vestigial Origin: Lateral supracondylar ridge of femur Insertion: Via tendo calcaneus (Achilles tendon) into posterior calcaneus with soleus and gastrocnemius Innervation: SCIATIC nerve - Tibial branch Movement: - Plantar flexes foot - Flexes knee
Flexor digitorum longus Origin: Insertion: Innervation: Movement:
Flexor digitorum longus (Posterior deep leg) Origin: Posterior surface of TIBIA shaft Insertion: (goes below feet) Distal phalnages of toes 2-5 Innervation: SCIATIC nerve - tibial branch Movement: - Flexes distal phalanges of toes 2-5 - Plantar flexes foot - Supports arch of foot
Tibialis posterior Origin: Insertion: Innervation: Movement:
Tibialis posterior (Posterior deep leg) Origin: Posterior surface of TIBIA, FIBULA, interosseous mb Insertion: (goes below feet) Navicular, medial cuneiform, MT 2-4 Innervation: SCIATIC nerve - tibial branch Movement: - Plantar flexes foot - Inverts foot - Holds up arch of foot
Flexor hallucis longus Origin: Insertion: Innervation: Movement:
Flexor hallucis longus (Posterior deep leg) Origin: Posterior surface of FIBULA and interosseous membrane Insertion: Distal phalanx of big toe Innervation: SCIATIC nerve - tibial branch Movement: - Flexes distal phalanx of big toe - Plantar flexes foot - Supports arch of foot
Popliteus Origin: Insertion: Innervation: Movement:
Popliteus (Posterior deep leg) Origin: Lateral surface of lateral condyle of FEMUR Insertion: Posterior surface of shaft of tibia above soleal line Innervation: SCIATIC nerve - tibial branch Movement: - Flexes knee - Medial rotation of tibia on femur (at KNEE joint) - Lateral rotation (about 6 degrees) of femur on the tibia during rotation (unlocking)
Extensor digitorum brevis Origin: Insertion: Innervation: Movement:
Extensor digitorum brevis (Dorsum of foot) Origin: Ant. part of surface of calcaneum and inferior extensor retinaculum Insertion: Base of proximal phalanx of big toe and long extensor tendons to toes 2-4 Innervation: Deep fibular nerve Movement: - Extend toes
Abductor hallucis Origin: Insertion: Innervation: Movement:
Abductor hallucis (Sole of foot - 1st layer) Origin: Medial tubercle of calcaneul tuberosity + Flexor retinaculum Insertion: Base of proximal phalanx of big toe Innervation: Medial plantar nerve Movement: - Flexes and abducts big toe - Braces medial longitudinal arch
Flexor digitorum brevis Origin: Insertion: Innervation: Movement:
Flexor digitorum brevis (Sole of foot - 1st layer) Origin: Medial tubercle of calcaneul tuberosity Insertion: Borders of middle phalanx of toes 2-5 (Tendons perforated by tendons of FDL) Innervation: Medial plantar nerve Movement: - Flexes toes 2-5 - Braces medial and lateral longitudinal arches
Abductor digiti minimi Origin: Insertion: Innervation: Movement:
Abductor digiti minimi (Sole of foot - 1st layer) Origin: Medial and lateral tubercle of calcaneul tuberosity Insertion: Base of proximal phalanx of small toe Innervation: Lateral plantar nerve Movement: - Flexes 5th toe - Abducts 5th toe - Braces lateral longitudinal arch
