Lower Extremity Muscles Origins + Insertions Flashcards Preview

Muscles > Lower Extremity Muscles Origins + Insertions > Flashcards

Flashcards in Lower Extremity Muscles Origins + Insertions Deck (40):
1

Pectineus

Pecten pubis --> Pectineal line of femur

2

Adductor Brevis

Anterior surface of inferior pubic ramus --> Pectineal line and superior part of medial lip of linea aspera

3

Adductor Longus

Anterior surface of body of pubis --> Middle third of linea aspera

4

Adductor Magnus

Inferior pubic ramus, ischial ramus, and inferolateral area of ischial tuberosity-->Gluteal tuberosity of femur, medial lip of linea aspera, medial supracondylar ridge, adductor tubercle

5

Gracilis

Inferior margin of pubic symphysis, inferior ramus, inferior ramus of pubis, adjacent ramus of ischium --> Medial surface of tibial shaft

6

Sartorius

ASIS --> Superior aspect of the medial surface of the tibial shaft near the tibial tuberosity

7

Tensor Fascia Lata

ASIS, Outer lip of anterior iliac crest, fasica lata --> Iliotibial band

8

Rectus Femoris

Straight head: AIIS, Reflected head: groove aboev acetablum --> Base of patella and forms central portion of quadriceps femoris tendon

9

Vastus Intermedius

Superior 2/3 of anterior and lateral surfaces of femur, lateral intermuscular septum of thigh --> Lateral border of patella and forms deep portion of quadriceps tendon

10

Vastus Medialis

Infeiror intertrochanteric line, spiral line, medial lip of linea aspera, superior supracondylar ridge or femur, medial intermuscular septum --> Latearl base and border of patella and forms lateral patellar retinaculum and lateral side of quadriceps femoris tendon

11

Vastus Lateralis

Superior intertrochanteric line, anterior and inferior greater trochanter, superior portion of lateral lip of linea aspera, lateral gluteal tuberosity of femur --> Lateral base and border of patella and forms lateral patellar retinaculum and lateral portion of quadriceps femoris tendon

12

Hamstrings: Biceps Femoris Long Head

Posterior portion of ichial tuberosity (shares tendon with semitendonosus) --> Primarily fibular head, LCL and lateral tibial condyle

13

Hamstrings: Biceps Femoris Short Head

Lateral lip of linea aspera, lateral supradonylar ridge of femur, lateral intermuscular septum of thigh--> Primary fibular head, LCL and lateral tibial condyle

14

Hamstrings: Semimembranosus

Superior lateral ischial tuberosity --> Posterior medial tibial condyle

15

Hamstrings: Semitendonosus

Superior medial posterior ischial tiberosity (shares tendon with biceps femoris) --> Superior medial tibial shaft

16

Tibialis Anterior

Lateral condyle of tibia, proximal 1/2-2/3 of lateral surface of tibial shaft, interosseous membrane, deep surface of fasica cruris --> Medial and plantar surfaces of 1st cuneiform and on base of 1st metatarsal

17

Extensor Digitorum Longus

Lateral condyle of fibula, proximal 2/3-3/4 of medial fibular shaft surface, upper interosseous membrane, fasica cruris, and anterior intermuscular septum --> Splits into 4 tendon slips after extensor retinaculum which insert on dorsum of middle and distal phalanges as part of extensor expansion complex

18

Extensor Hallucis Longus

Anterior surface of the fibula and the adjacent interosseous membrane-->Base of dorsal center of distal phalanx of great toe

19

Gastrocnemius

Medial head from posterior nonarticular surface of medial femoral condyle, lateral head from lateral surface of femoral lateral condyle --> 2 heads unite into a broad aponeurosis, which eventually unites with the deep tendon of the soleus to form the achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface

20

Soleus

Posterior fibular head, upper 1/4-1/3 of posterior surface of tendinous arch spanning two site of bone origin-->Eventually unites with the gastrocnemius aoneurosis to form the achilles tendon, inserting on the middle 1/3 of the posterior calcaneal surface

21

Plantaris

Inferior aspect of lateral supracondylar line of distal femur --> Middle 1/3 of posterior calcaneal surface, just medial to Achilles tendon

22

Tibialis Posterior

Posterior interosseous membrane, superior 2/3 of medial posterior fibula, superior posterior tibia, intermuscular septum between muscle of posterior compartment and deep transverse septum --> Splits into 2 slips after passing inferior to plantar calcaneonavicular ligament, superficial slip inserts on the tuberosity of the navicular bone and sometimes medial cuneiform, deeper slip divides again into slips inserting on plantar surfaces of metatarsals 2-4 and second cuneiform

23

Flexor Digitorum Longus

Posterior tibial surface distal to popliteal line --> splits into 4 slips after passing through medial intermuscular septum of plantar surface of foot, these slips then insert on plantar surface of basese of 2nd-5th distal phalanges

24

Flexor Hallucis Longus

Inferior 2/3 of posterior surface of fibula, lower interosseous membrane-->Plantar surface of base of digital phalanx of great toe

25

Popliteus

Anterior popliteal groove on lateral femoral condyle --> Posterior surface of tibia in a fan-like fashion, superior to popliteal line

26

Peroneus Tertius

Medial fibular shaft surface and anterior intermuscular septum --> Dosral surface of base of 5th metatarsal

27

Peroneus Brevis

Inferior 2/3 of lateral fibular surface and anterior and posterior intermuscular septum --> Lateral surface of styloid process of 5th metatarsal base

28

Peroneus Longus

Head of fibula, upper 1/2-2/3 of lateral fibular shaft surface, anterior and posterior intermuscular septum --> Plantar posterolateral aspect of medial cuneiform and lateral side of 1st metatarsal base

29

Extensor Digitorum Brevis

Calcaneous --> Extensor Tendonosus of digits 2-4

30

Extensor Hallucis Brevis

Calcaneous --> Dorsal aspect of base of digit 1

31

Abductor Hallucis

Medial tubercle of calcaneal tuberosity --> Medial side of baseof proximal phalanx of digit one

32

Flexor Digitorum Brevis

Medial tubercle of the calcaneal tuberosity --> Both sides of middle phalanges of digits 2-5

33

Abductor Digiti Minimi

Medial and lateral tubercles of calcaneal tuberosity --> Lateral side of base of proximal phalanx of 5th digit

34

Quadratus Plantae

Medial surface and lateral margin of plantar surface of calcaneous --> Posterolateral margin of tendon of flexor digitorum longus

35

Lumbricals

Tendons of flexor digitorum longus --> Medial aspect of expansion of digits 2-5

36

Flexor Hallucis Brevis

Plantar surfaces of cuboid and lateral cuneiforms --> Both sides of base of proximal phalanx of digit 1

37

Adductor Hallucis

Oblique head: bases of metatarsals 2-4, Transverse head: plantar ligamnets of MP joints

38

Flexor Digiti Minimi Brevis

Base of 5th metatarsal --> base of 5th digit

39

Plantar Interossi

Bases of medial sides of metarsals 3-5 --> Medial sides of bases of phalanges 3-5

40

Dorsal Interossei

Adjacent sides of metatarsals 1-5 --> 1st medial side of proximal phalanx of digit 2, 2nd-4th lateral sides of digits 2-4