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Flashcards in anatomy 2 Deck (30)
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1

Iliopsoas

origin: transverser processes of L2-L3, vertebral ends of last 2 ribs, and sacropelvic part of the ilium.
insertion: lesser trochanter
nerve: ventral branches of spinal nerves
action: flexor and supinator of hip, flexes lumbar column

2

tensor fascia latae

origin: tuber coxae
insertion: fascia lata
nerve: cranial gluteal
action: flexes hip, extends stifle, protracts pelvic limb

3

superficial gluteus

origin: sacrum, Cd1 vertebra, sacrotuberous ligament
insertion: third trochanter
nerve: caudal gluteal
action: extension

4

middle gluteus

origin: gluteal surface and wing of the ilium
insertion: greater trochanter
nerve: cranial gluteal
action: extension of the hip, abduction of limb

5

deep gluteus

origin: gluteal surface of ilium
insertion: greater trochanter
nerve: cranial gluteal
action: extension of hip, abduction of limb

6

piriformis

origin: sacrum and sacrotuberous ligament
insertion: greater trochanter
nerve: caudal gluteal
action: extension of hip, abduction of limb

7

gemelli

origin: lesser ischiatic notch
insertion: trochanteric fossa of femur
nerve: sciatic
action: supinator, rotates femur outward

8

internal obturator

origin: intrapelvic borders surrounding obturator foramen.
insertion: trochanteric fossa of the femur
nerve: sciatic
action: abductor, rotates femur outward

9

external obturator

origin: outer margins of obturator foramen.
insertion: trochanteric fossa of femur
nerve: obturator
action: supinator of the femur, adductor of the pelvic limb

10

sartorius

origin: cranial belly= iliac crest; caudal belly= tuber coxae
insertion: patella via fascia, cranial border of the tibia
nerve: femoral
action: extensor of the stifle, flexor of the stifle (caudal), and flexor of the hip

11

quadriceps femoris= vastus medialis, vastus lateralis, vastus intermedius, and rectus femoris

origin: femur= craniomedial, femur= craniomedial, femur=craniolateral, ilium= cranial to the acetabulum.
insertion: tibial tuberosity via the patellar ligament
nerve: femoral
action: extension of the stifle, flexion of the hip.

12

biceps femoris

origin: ischiatic tuberosity, sacrotuberous ligament
insertion: patellar ligament, cranial border of the tibia, calcanean tuberosity.
nerve: caudal gluteal, sciatic, tibial
action: extensor of the hip and stifle, flexor of the stifle, extensor of the tarsus, and abductor of the limb.

13

abductor cruris caudalis

origin: sacrotuberous ligament
insertion: crural fascia
nerve: sciatic
action: abductor

14

semitendinosus

origin: ischiatic tuberosity
insertion: tibia- proximomedial surface, calcanean tuberosity
nerve: tibial
action: extensor of the hip joint, flexor of the stifle, extensor of the tarsus,

15

semimembranosus

origin: ischiatic tuberosity
insertion: medial condyle of the femur and tibia
nerve: tibial
action: extensor of the hip and flexor of the stifle.

16

gracilis

origin: pelvic symphysis
insertion: cranial tibial border, calcanean tuberosity
nerve: obturator
action: adductor, extension of the stifle

17

pectineus

origin: iliopubic eminence
insertion: medial lip of the femur
nerve: obturator
action: adduction

18

adductor magnus and adductor brevis

origin: pelvic symphysis/ventral pubic tubercle
insertion: lateral lip of the femur/proximal femur
nerve: obturator
action: adduction

19

quadratus femoris

origin: ventromedial to the ischiatic tuberosity
insertion: distal to the trochanteric fossa of the femur
nerve: sciatic
action: supinator of the femur, extensor of the hip

20

cranial tibial

origin: lateral aspect of cranial border of the tibia
insertion: base of Mt 1, 2 and the plantar surface
nerve: deep fibular
action: flex the tarsus and supinate the pes

21

long digital extensor

origin: lateral epicondyle of the femur
insertion: distal phalanx of each digit
nerve: deep fibular
action: extensor of the digits and flexor of the tarsus

22

fibularis longus

origin: lateral condyle of the tibia, head of the fibula
insertion: extensor process of the distal phalanx, digit 5
nerve: deep fibular
action: flexor of the tarsus, pronator of the pes

23

lateral digital extensor

origin: proximal fibula, lateral collateral ligament fo the stifle
insertion: extensor process of distal phalanx, digit 5
nerve: superficial fibular
action: extensor of digit 5

24

fibularis brevis

origin: distal surface of the fibula
insertion: base of Mt. 5
nerve: superficial fibular
action: flexor of the tarsus

25

gastrocnemius

origin: lateral and medial supracondylar tuberosities of the femur
insertion: calcanean tuberosity
nerve: tibial
action: extensor of the tarsus, flexor of the stifle

26

SDF

origin: lateral supracondylar tuberosity of the femur
insertion: plantar aspect of the middle phalanges of digits II-V
nerve: tibial
action: extensor of the tarsus, flexor of the digits

27

DDF

origin: proximocaudal surface of the tibia and fibula
insertion: plantar aspect of distal phalanges of digits II-V
nerve: tibial
action: extensor of the tarsus, flexor of the digits

28

popliteus

origin: lateral condyle of the femur
insertion: proximomedial aspect of the tibia
nerve: tibial
action: flexor of the stifle, pronator of the distal limb

29

interossei

origin: plantar proximal aspect of Mt 2-5
insertion: P1 of digits 2-5
nerve: tibial
action: flexors of metotarso-phalangeal joints

30

extensor digitorum brevis

origin: distal surface of the tarsus
insertion: dorsal surface of the proximal phalanges of digits II-V
nerve: fibular
action: extensor of the metotarso-phalangeal joints