Lecture 12 - Muscles Flashcards
What is the origin of tensor fasciae latae?
Tuber coxae; aponeurosis of middle gluteal m.
What is the insertion of tensor fasciae latae?
Lateral femoral fascia
What is the nerve of tensor fasciae latae?
Cranial gluteal n.
What is the action of tensor fasciae latae?
Tense lateral femoral fascia; flex hip (advance); extend stifle (advance)
What is the origin of gluteus medius?
Crest and gluteal surface of ilium
What is the insertion of gluteus medius?
Greater trochanter
What is the nerve of gluteus medius?
Cranial gluteal n.
What is the action of gluteus medius?
Extend (retract) and abduct the hip; rotate the pelvic limb medially at the hip
What is the origin of gluteus superficialis?
Lateral border of sacrum and first caudal vert.; sacrotuberous ligament; cranial dorsal iliac spine via deep gluteal fascia
What is the insertion of gluteus superficialis?
Third trochanter
What is the nerve of gluteus superficialis?
Caudal gluteal n.
What is the action of gluteus superficialis?
Extend (retract) and abduct the hip
What is the origin of gluteus profundus?
Body of the ilium; ischial spine
What is the insertion of gluteus profundus?
Greater trochanter
What is the nerve of gluteus profundus?
Cranial gluteal n.
What is the action of gluteus profundus?
Extend (retract) and abduct the hip; rotate pelvic limb medially at the hip
What is the origin of obturator internus?
symphysis pelvis and dorsal surface of ischium and pubis
What is the insertion of obturator internus?
Trochanteric fossa
What is the nerve of obturator internus?
Sciatic n.
What is the action of obturator internus?
Rotate pelvis limb laterally at the hip
What is the origin of obturator externus?
Ventral surface of pubis and ischium
What is the insertion of obturator externus?
Trochanteric fossa
What is the nerve of obturator externus?
Obturator n.
What is the action of obturator externus?
Rotate pelvic limb medially at the hip
What is the origin of Gemelli?
Ischial spine and lateral surface of ischium
What is the insertion of Gemelli?
Trochanteric fossa of the femur
What is the nerve of Gemelli?
Sciatic n.
What is the action of Gemelli?
Rotate pelvic limb laterally at the hip
What is the origin of quadratus femoris?
Ventral surface of caudal part of ischium
What is the insertion of quadratus femoris?
Intertrochanteric crest and shaft of femur
What is the nerve of quadratus femoris?
Sciatic n.
What is the action of quadratus femoris?
Rotate pelvic limb laterally at the hip, extend the hip
What is the origin of biceps femoris?
Sacrotuberous ligament and ischial tuberosity
What is the insertion of biceps femoris?
1) Patella, patellar ligament, and …
2) Subcutaneous part of tibal body
3) Tuber calcanei (look at slide for more indepth answer)
What is the nerve of biceps femoris?
Sciatic n
What is the action of biceps femoris?
Extend hip, stifle, and hock; caudal part of muscle flexes stifle
What is the origin of semitendinosus?
Ischial tuberosity
What is the insertion of semitendinosus?
Disto-cranial border of tibia; medial surface of body of tibia; tuber calcanei via crural fascia
What is the nerve of semitendinosus?
Sciatic n.
What is the action of semitendinosus?
Extend the hip; flex stifle; extend hock
What is the origin of semimembranosus?
Ischial tuberosity
What is the insertion of semimembranosus?
Distal medial lip of caudal rough surface of the femur and medial condyle of the tibia
What is the nerve of semimembranosus?
Sciatic n.
What is the action of semimembranosus?
Extend the hip; attachment of femur extends the stifle; attachment to tibia flexes or extends stifle depending on position of the limb
What is the origin of sartorius?
cranial - iliac crest and thoracolumbar fascia
caudal - cranial ventral spine and ventral border of ilium
What is the insertion of sartorius?
cranial - patella w/ rectus femoris
caudal - cranial border of tibia w/ gracilis
What is the nerve of sartorius?
FEMORAL N.
What is the action of sartorius?
Flex hip
Cranial part - extend stifle
Caudal part - flexes stifle
What is the origin of pectineus?
Iliopubic eminence and pubic tubercle via prepubic tendon
What is the insertion of pectineus?
Distal aspect of medial lip of caudal rough face of femur
What is the nerve of pectineus?
Obturator n.
What is the action of pectineus?
Adduct limb
What is the origin of adductor?
Pelvic symphysis via symphysial tendon; adjacent part of ischial arch, ventral surfaces of ischium and pubis
What is the insertion of adductor?
entire lateral lip of caudal rough face femur
What is the nerve of adductor?
Obturator n.
What is the action of adductor?
Adduct limb, extend hip
What is the origin of gracilis?
Pelvic symphysis by means of symphysial tendon
What is the insertion of gracilis?
Cranial border of the tibia
Tuber calcanei with semiteninosus
What is the nerve of gracilis?
Obturator n.
What is the action of gracilis?
Adduct the limb, flex stifle, and extend hip and hock
