Hindlimbs Flashcards
Origin of the TFL
Coxal tuber
Insertion of TFL
Together with the fascia lata on patella, lat. patellar lig., and cran. border of tibia; with supf. gluteal muscle on third trochanter
Action of TFL
Flexes hip joint; protracts hindlimb; extends stifle; tenses fascia lata
Innervation of TFL
Cran. gluteal n.
Origin of gluteus medius
Longissimus lumborum; gluteal surface of ilium; sacroiliac and sacrosciatic ligament
Insertion of gluteus medius
Greater trochanter
Action of gluteus medius
Extends hip joint; abducts hindlimb
Innervation of gluteus medius
Cranial gluteal nerve
Origin of biceps femoris
Vertebral head: spinous and transverse processes of last three sacral vertebrae; sacrosciatic ligament and tail fascia
Pelvic head: ischial tuber
Insertion of biceps femoris
Patella; lateral and middle patellar ligaments; cranial border of tibia; crural fascia; and via its tarsal tendon on calcaneus
Action of biceps femoris
Extends hip and stifle joint; with its caudal division flexes stifle; abducts hindlimb; extends hindlimb; extends hock joint
Innervation of biceps femoris
Caudal gluteal and sciatic nerves
Origin of semitendinosus
Vertebral head: last sacral and first two caudal vertebrae; tail fascia and sacrosciatic ligament
Pelvic head: ventral aspect of ischial tuber
Insertion of semitendinosus
Cranial border of tibia; crural fascia; via tarsal tendon on calcaneus
Action of semitendinosus
Limb supporting weight: extends hip, stifle and hock joints
Limb not supporting weight: flexes stifle, retracts and adducts limb
Innervation of semitendinosus
Caudal gluteal and sciatic nerves
Origin of semimembranosus
Vertebral head: first caudal vertebra; sacrosciatic ligament
Pelvic head: ventromedial aspect of ischial tuber
Insertion of semimembranosus
Medial condyles of femur and tibia
Action of semimembranosus
Limb supporting weight: extends hip and stifle joints
Limb not supporting weight: retracts, adducts and rotates limb inward
Innervation of semimembranosus
Caudal gluteal and sciatic nerve.
Origin of vastus lateralis
Proximolateral on femur
Insertion of vastus lateralis
Via the intermediate patellar on the tibial tuberosity
Action of vastus lateralis
Flexes hip joint (rectus fem.); extends and stabilizes stifle
Innervation of vastus lateralis
Femoral nerve
Origin of gastrocnemius
With medial and lateral heads from corresponding supracondylar tuberosities of the femur
Insertion of gastrocnemius
As part of common calcanean tendon on calcanean tuber
Action of gastrocnemius
Extends hock; flexes stifle
Innervation of gastrocnemius
Tibial nerve