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Pelvic Limb Muscles

Origin, Insertion, Action and Innervations of the Equine PL

QuestionAnswer
Origin of the Iliopsoas Ventral surface of bodies and transverse processes of lumbar vertebrae. Ventral surface of wing and body of Ilium
Insertion of the Iliopsoas Lesser trochanter of the femur
Action of the Iliopsoas Flex Hip Rotate Thigh
Innervation of the Iliopsoas Ventral branches of lumbar nerves Femoral nerve
Origin of the Tensor Fascia Latae Coxal Tuber
Insertion of the Tensor Fascia Latae Lateral Patellar Ligament Cranial Border of Tibia Patella via fascia lata
Action of the Tensor Fascia Latae Flex Hip
Innervation of the Tensor Fascia Latae Cranial Gluteal Nerve
Origin of the Superficial Gluteal Coxal tuber Gluteal fascia
Insertion of the Superficial Gluteal Third trochanter
Action of the Superficial Gluteal Flex Hip Abduct Thigh
Innervation of the Superficial Gluteal Cranial Gluteal Nerve Caudal Gluteal Nerve
Origin of the Middle Gluteal Coxal tuber Iliac wing Sacrum Sacrosciatic Ligament
Insertion of the Middle Gluteal Greater trochanter (Caudal)
Action of the Middle Gluteal Extend Hip Abduct Thigh
Innervation of the Middle Gluteal Cranial Gluteal Nerve Caudal Gluteal Nerve
Origin of the Deep Gluteal Ischiatic Spine
Insertion of the Deep Gluteal Greater trochanter (cranial)
Action of the Deep Gluteal Abduct thigh
Innervation of the Deep Gluteal Cranial Gluteal Nerve
Origin of the Biceps Femoris Sacrum Sacrosciatic Ligament Ischiatic Tuberosity
Insertion of the Biceps Femoris 1) Fascia lata and Patella 2) Lateral Patellar Ligament and Tibial Crest 3) Calcanean Tuber
Action of the Biceps Femoris Extend Hip
Innervation of the Biceps Femoris Caudal Gluteal Nerve Sciatic Nerve
Origin of the Semitendinosis T-processes of Caudal Vertebrae Ventral Surface of Ischiatic Tuberosity
Insertion of the Semitendinosis Medial aspect of the distal end of the crest of Tibia Calcanean Tuber
Action of the Semitendinosis Extend Hip Extend Hock Flex Stifle
Innervation of the Semitendinosis Caudal Gluteal Nerve Sciatic Nerve
Origin of the Semimembranosis Sacrotuberous Ligament Ventral Surface of the Ischiatic Tuberosity
Insertion of the Semimembranosis Medial Epicondyle of the Femur
Action of the Semimembranosis Extend Hip
Innervation of the Semimembranosis Sciatic Nerve
Origin of the Gracilis Pelvic Symphysis
Insertion of the Gracilis Medial Patellar Ligament Medial Surface of Tibia
Action of the Gracilis Adduct Limb
Innervation of the Gracilis Obturator Nerve
Origin of the Sartorius Iliac Fascia Tendon of the psoas minor
Insertion of the Sartorius Medial Patellar Ligament Tibial Tuberosity
Action of the Sartorius Flex Hip Adduct Limb
Innervation of Sartorius Saphenous Nerve
Origin of the Pectineus Cranial Border of Pubis
Insertion of the Pectineus Medial Border of Femur
Action of the Pectineus Flex Hip Adduct Limb
Innervation of the Pectineus Obturator Nerve
Origin of the Adductor Ventral Surface of Pubis and Ischium
Insertion of the Adductor Caudal Surface and Medial Epicondyle of Femur
Action of the Adductor Adduct Thigh
Innervation of the Adductor Obturactor Nerve
Origin of the Vastus Medialis Medial Surface of Femur
Insertion of the Vastus Medialis Patella
Action of the Vastus Medialis Extend Stifle
Innervation of the Vastus Medialis Femoral Nerve
Origin of the Vastus Intermedius Cranial Surface of Femur
Insertion of the Vastus Intermedius Patella
Action of the Vastus Intermedius Extend Stifle
Innervation of the Vastus Intermedius Femoral Nerve
Origin of the Vastus Lateralis Lateral Border of Femur
Insertion of the Vastus Lateralis Patella
Action of the Vastus Lateralis Extend Stifle
Innervation of the Vastus Lateralis Femoral Nerve
Origin of the Rectus Femoris Body of the Ilium
Insertion of the Rectus Femoris Patella
Action of the Rectus Femoris Extend Stifle
Innervation of the Rectus Femoris Femoral Nerve
Origin of the Tibialis Cranialis Lateral Condyle of Tibia Tibial Tuberosity
Insertion of the Tibialis Cranialis 1) Medial Branch = T1+T2 2) Dorsal Branch = T3+MT3 3) Lateral Branch = T4
Action of the Tibialis Cranialis Flex Tarsus
Innervation of the Tibialis Cranialis Peroneal Nerve
Origin of the Peroneus Tertius Extensor fossa of the Femur (in common with the long digital extensor)
Insertion of the Peroneus Tertius 1) Dorsal Branch = T3 + MT3 2) Lateral Branch = Calcaneus + T4
Action of the Peroneus Tertius Links the actions of the Stifle and Taral Joints
Innervation of the Peroneus Tertius No contractile function
Origin of the Long Digital Extensor Extensor Fossa of the Femur
Insertion of the Long Digital Extensor Extensor process of P3 Dorsoproximal aspects of P1 and P2
Action of the Long Digital Extensor Flex Tarsus Extend Stifle Extend Digits
Innervation of the Long Digital Extensor Deep Peroneal Nerve
Origin of the Lateral Digital Extensor Lateral collateral ligament of stifle Lateral Condyle of Tibia
Insertional of the Lateral Digital Extensor Proximal third of Metatarsus
Action of the Lateral Digital Extensor Flex Tarsus
Innervation of the Lateral Digital Extensor Superficial Peroneal Nerve
Origin of the Popliteus Lateral Epicondyle of Femur
Insertion of the Popliteus Caudomedial Border of Tibia
Action of the Popliteus Flex Stifle
Innervation of the Popliteus Tibial Nerve
Origin of the Gastrocnemius Lateral Head: lateral supracondylar tuberosity of Femur Medial Head: medial supracondylar tuberosity of Femur
Insertion of the Gastrocnemius Calcanean Tuberosity
Action of the Gastrocnemius Extend Tarsus Flex Stifle
Innervation of the Gastrocnemius Tibial Nerve
Origin of the Superficial Digital Flexor Supracondylar Fossa of Femur
Insertion of the Superficial Digital Flexor Lateral and Medial aspects of the distal end of P1 Lateral and Medial aspects of proximal end of P2 Calcaneous
Action of the Superficial Digital Flexor Flex Digits Extend Tarsus
Innervation of the Superficial Digital Flexor Tibial Nerve
Origin of the Deep Digital Flexor Caudal aspect of the Tibia
Insertion of the Deep Digital Flexor Plantar Surface of distal Phalanx
Action of the Deep Digital Flexor Flex Digits Extend Tarsus
Innervation of the Deep Digital Flexor Tibial Nerve
Origin of the Interosseus Plantar surface of distal row of tarsal bones Proximal plantar surface of MT3
Insertion of the Interosseus Proximal sesamoid bones Long extensor tendons
Action of the Interosseus Prevent over extension of fetlock joint
Created by: Jacque1417