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Anatomy AOINAS pt 2 > Posterior Thigh > Flashcards

Posterior Thigh Flashcards

1
Q

Biceps femoris Origin

A

Long head: ischial tuberosity
Short head: linea aspera and lateral supracondylar line
of femur

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2
Q

Biceps Femoris Insertion

A

head of fibular

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3
Q

Biceps Femoris Innervation

A

Long head: tibial division of the sciatic nerve (L5, S1, S2)
Short head: common fibular division of sciatic nerve(L5, S1, S2)

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4
Q

Biceps Femoris Action

A

Hip joint: extension, external rotation; stabilizes pelvis
Knee joint: leg flexion, leg external rotation

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5
Q

Biceps Femoris Arterial Supply

A

Inferior gluteal a., perforating aa., popliteal a.

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6
Q

Semitendinosus Origin

A

ischial tuberosity

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7
Q

Semitendinosus Insertion

A

Medial surface of the superior
part of tibia. (Pes anserinus)

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8
Q

Semitendinosus Innervation

A

Tibial division of the sciatic nerve (L5, S1, S2)

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9
Q

Semitendinosus Action

A

Hip joint: It extends thigh, medially rotates thigh.
Knee joint: Flexes and medially rotates leg.

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10
Q

Semitendinosus Arterial Supply

A

First perforating branch of deep femoral a., medial
femoral circumflex a., inferior gluteal a. and inferior medial
geniculate a.

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11
Q

Semimembranosus Origin

A

ischial tuberosity

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12
Q

Semimembranosus Insertion

A

Posterior part of medial tibial
condyle

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13
Q

Semimembranosus Innervation

A

Tibial division of the sciatic nerve (L5, S1, S2)

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14
Q

Semimembranosus Action

A

Hip joint: thigh extension and internal rotation.
Knee joint: flexion and internal rotation of the leg
Stabilizes pelvis

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15
Q

Semimembranosus Arterial Supply

A

Perforating branches of femoral and
popliteal arteries

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16
Q

Gastrocnemius Origin

A

lateral head – lateral aspects of lateral
condyle of femur
Medial head – popliteal surface of femur,
superior to medial condyle

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17
Q

Gastrocnemius Insertion

A

Posterior surface of
calcaneus via calcaneal tendon (Achilles
tendon)

18
Q

Gastrocnemius Innervation

A

Tibial nerve (S1, S2)

19
Q

Gastrocnemius Action

A

plantar flexes ankle when knee is
extended, raises heel during walking, and
flexes knee joint

20
Q

Gastrocnemius Arterial Supply

A

branches of the popliteal a

21
Q

Plantaris Origin

A

Lateral supracondylar
line of femur, oblique popliteal ligament of
knee

22
Q

Plantaris Insertion

A

Posterior surface of
calcaneus (via calcaneal tendon)

23
Q

Plantaris Innervation

A

tibial nerve (S1, S2)

24
Q

Plantaris Action

A

Foot plantar flexion; Knee flexion

25
Q

Plantaris Arterial Supply

A

Superficially: lateral sural and
popliteal arteries; Deeply: superior lateral
genicular artery

26
Q

Soleus Origin

A

Soleal line, medial border of tibia, head of
fibula, posterior border of fibula.
(Soleal tendinous arch)

27
Q

Soleus Insertion

A

Posterior surface of calcaneus (via calcaneal
tendon)

28
Q

Soleus Innervation

A

tibial nerve (S1, S2)

29
Q

Soleus Action

A

Talocrural joint: Foot plantar flexion

30
Q

Soleus Arterial Supply

A

Posterior tibial artery

31
Q

Popliteus Origin

A

lateral surface of
lateral condyle of femur and lateral meniscus

32
Q

Popliteus Insertion

A

posterior surface of tibia,
superior to soleal line

33
Q

Popliteus Innervation

A

tibial nerve (L4, L5, S1)

34
Q

Popliteus Action

A

weakly flexes knee and unlocks it by
laterally rotating femur on fixed tibia, may
also medially rotate tibia of unplanted limb

35
Q

Popliteus Arterial Supply

A

branches of the popliteal a

36
Q

Adductor Magnus Origin

A

Adductor part – inferior ramus of pubis, ramus of ischium
Hamstring part – ischial tuberosity

37
Q

Adductor Magnus Insertion

A

Adductor part – gluteal tuberosity, linea aspera, medial
supracondylar line.
Hamstring part – adductor tubercle of femur

38
Q

Adductor Magnus Innervation

A

Adductor part – Obturator nerve (L2, L3, L4)
Hamstring part – tibial part of sciatic nerve (L4)

39
Q

Adductor Magnus Action

A

Adductor part –Adducts hip joint; adductor part flexes hip.
Hamstring part – Extends hip joint

40
Q

Adductor Magnus Arterial Supply

A

deep femoral, obturator, and femoral aa

Anatomy AOINAS pt 2 (7 decks)

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