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MRCS anatomy > LL: Thigh > Flashcards

LL: Thigh Flashcards

1
Q

Arterial blood supply of lower limb

A

External iliac → femoral (under inguinal lig.)

Femoral → profunda femoris (supplies all thigh muscles), superficial femoral

Superficial femoral → popliteal (after going through adductor hiatus)

Popliteal gives five genicular branches (superior medial, superior lateral, inferior medial, inferior lateral, middle)

Popliteal → anterior tibial , tibiofubular trunk

Anterior tibial pierces interosseus membrane, runs down, becomes dorsalis pedis

Tibioperoneal → Peroneal (larger), Posterior tibial

Posterior tibial → medial and later plantar

Lateral + dorsalis pedic → plantar arch

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2
Q

Surface marking for lateral cutaneous n of the thigh

A

1-2 cm medial and inferior to ASIS

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3
Q

Muscles of anterior compartment

A

Illiacus

Sartorius

Pectineous

Psoas

Quadiceps femoris : vastus lateralis, intermedius, medialis, recetus femoris

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4
Q

Origin and insertion of Psoas major

A

TX11 to LV

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5
Q

Origin and insertion of Iliacus

A

Iliac fossa

Lesser trochanter

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6
Q

Origin and insertion of Vastus medialis, intermedius and lateralis

A

Intertrochanteric line

Quadriceps femoris tendon

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7
Q

Origin and insertion of rectus femoris

A

Straight head from ASIS, reflected head from ilieum

Quadriceps femoris tendon

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8
Q

Origin and insertion of sartorius

A

ASIS

Medial to tibial tuberosity

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9
Q

Action of psoas major

A

Flexes thigh at hip

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10
Q

Action of iliacus

A

Flexes thigh at hip

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11
Q

Action of Vastus muscles

A

Knee extension

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12
Q

Action of rectus femoris

A

Hip flexion and knee extension

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13
Q

Action of sartorius

A

Hip flexion

Knee flexion

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14
Q

Iliacus innervation

A

Femoral

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15
Q

Psoas innervation

A

L1 to L3

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16
Q

Pes anserinus

A

Combined tendons of sartorius, gracilis and semitendinosus insertion on tibia

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17
Q

Muscles of medial compartment

A

Obturator externus

Adductor magnus

Pectineus

Adductor brevis

Adductor longus

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18
Q

Origin and insertion of gracillis

A

Body of pubis to medial tibia

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19
Q

Origin and insertion of pectineus

A

Pectineal line of pubis to lesser trochanter/linea aspera

20
Q

Origin and insertion of adductor longus

A

Body of pubis to Linea aspera

21
Q

Origin and insertion of adductor brevis

A

Body of pubic bone to posterior femur

22
Q

Origin and insertion of adductor magnus

A

ischial tuborosity to adductor tubercle

23
Q

Origin and insertion of obturator externus

A

External surface of obturator membrane to trochanteric fossa

24
Q

Innervation of medial compartment

A

Mostly obturator nerve

Pectineus: femoral

Adductor magnus: sciatic and obturator

25
Q

Action of gracillis

A

Adducts hip

Flexes knee

26
Q

Action of pectineus

A

Adducst hip

Flexes hip

27
Q

Action of adductor longus, brevis and magnus

A

Adducts hip

Medially rotate thigh at hip joint

28
Q

Action of obturator externus

A

Laterally rotates thigh at hip joint

29
Q

Borders of adductor canal

A

Posterior: adductor magnus and longus

Anterior/lateral: vastus medialis

Medial: sartorius

30
Q

Contents of adductor canal

A

Femoral artery, vein

Saphenous nerve, nerve to vastus medialis (Nerves dont go through, just cross)

31
Q

Adductor canal aka

A

subartorial canal

Hunters canal

32
Q

Significance of adductor canal

A

Anatomical narrowing

Common site for turbulent flow and atherosclerosis

33
Q

Muscles of the posterior compartment

A

Biceps femoris

Semitendious

Semimembranous

34
Q

Origin and insertion of biceps femoris

A

Ischial tuborosity to head of fibula

35
Q

Origin and insertion of semitendinous

A

Ischial tuberosity to tibia

36
Q

Origin and insertion of semimembranous

A

ischial tuborosity to medial tibia

37
Q

Innervation of posterior compartment

A

Sciatic nerve

38
Q

Action of posterior compartment

A

Knee flexion

Hip extension

39
Q

Arterial supply of the thigh

A

Profunda femoris gives of medial and lateral circumflex femoral arteries

40
Q

Femoral nerve branches

41
Q

Which tendon is used in ACL repair

A

semitendinous or patellar tendon

42
Q

Dynamic stabilisers of patella (prevent recurrance of dislocation)

A

Anteriorly quads

Posteriorly hamstrings

Medial/lateral: gastrocnemius

43
Q

Origin and insertion of ACL

A

Medial wall of lateral condyl to intercondylar eminence

44
Q

Innervation of short and long head of biceps femoris

A

Short- common fibular

Long- tibial nerve

45
Q

Which artery could be injured at the saphenofemoral junction

A

deep external pudendal artery (branch of superficial femoral artery)

46
Q

Gluteal tuberosity

A

Site of attachment of Gluteus maximus

MRCS anatomy (27 decks)

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