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BMS172 - anatomy lower limb > Thigh Attachments, Actions, Innervations > Flashcards

Thigh Attachments, Actions, Innervations Flashcards

1
Q

Sartorius Attachments

A

ASIS and superior half of notch inferior to ASIS

Pes anserinus (superior medial tibia)

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2
Q

Sartorius Action

A

Flexes the thigh at the hip
abducts thigh
laterally rotates thigh
flexes leg at knee

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3
Q

Sartorius Innervation

A

Femoral Nerve

L2, L3

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4
Q

Rectus Femoris Attachments

A

AIIS and ilium superior to acetabulum

Base of patella (and tibial tuberosity vis patella ligament)

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5
Q

Rectus Femoris Action

A

Flexion of thigh at hip

extension of leg at knee

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6
Q

Rectus Femoris Innervation

A

Femoral Nerve L2, L3, L4

L3, L4 Main suppliers

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7
Q

Vastus Medialis Attachments

A

intertrochanteric line and medial lip of linea aspera

base of patella (and tibial tuberosity via patella ligament)

aponeurotic fibres form medial patellar retinacula

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8
Q

Vastus Medialis Actions

A

extend leg at knee

counterbalance lateral pull of rectus femoris and vastus lateralis on patella (VMO)

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9
Q

Vastus Medialis Innervation

A

femoral nerve (L2, L3, L4)

L3, L4 main suppliers

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10
Q

Vastus Lateralis Attachments

A

greater trochanter and lateral lip of linea aspera

base of patella (tibial tuberosity via patella ligament)

aponeurotic fibres form lateral patellar retinacula

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11
Q

Vastus Lateralis Actions

A

Extends leg at knee

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12
Q

Vastus Lateralis Innervation

A

Femoral nerve L2, L3, L4 (L3, L4 main suppliers)

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13
Q

Vastus intermedius Attachments

A

anterior and lateral surfaces of femoral shaft

base of patella (tibial tuberosity via patella ligament)

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14
Q

Vastus Intermedius Action

A

Extension of the leg at the knee

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15
Q

Vastus Intermedius Innervation

A

femoral nerve L2, L3, L4 (L3 and L4 main suppliers)

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16
Q

What is the articularis genu?Where does it attach?

A

It is a small, flat muscle, attached to inferior anterior knee

shaft of femur and superior aspect of knee joint (suprapatellar bursa)

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17
Q

Articularis Genu Action

A

Pulls synovial membrane superiorly during extension of the leg at the knee

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18
Q

Pectineus Attachments

A

Superior pubic rams

pectineal line

19
Q

Pectineus Action

A

Adducts and flexes thigh at hip joint

assists medial rotation

20
Q

Pectineus Innervation

A

femoral nerve (L2, L3) L2 main supplier

21
Q

Adductor Longus Attachments

A

Body of pubis

Middle third of line aspera

22
Q

Adductor Longus Action

A

adducts thigh

active during flexion and extension of thigh and gait

23
Q

Adductor Longus Innervation

A

Anterior division of obturator nerve L2, L3, L4 (L3 main supplier)

24
Q

Adductor Brevis Attachment

A

body and inferior ramus of pubis

pectineal line and proximal part of linea aspera

25
Q

Adductor Brevis Action

A

adducts thigh,

active during flexion and extension of the thigh and gait

26
Q

Adductor Brevis Innervation

A

anterior division of obturator nerve (L2, L3, L4 (L3 main supplier)

27
Q

Adductor Magnus Attachments

A

adductor part: inferior ramus of pubis and ramus of ischium

gluteal tuberosity and linea aspera

hamstring part: ischial tuberosity

medial supracondylar line and adductor tubercle

28
Q

Adductor Magnus Actions

A

adducts thigh

flexes thigh
(adductor part)

extends thigh (hamstring part)

29
Q

Adductor Magnus Innervation

A

adductor part: posterior division of obturator nerve (L2, L3, L4) L3, L4 main suppliers

hamstring part: sciatic nerve (L4)

30
Q

Gracilis Attachments

A

body and inferior ramus of pubis

superior medial tibia (pes anserinus)

31
Q

Gracilis Action

A

adducts thigh

flexes leg at knee

rotates leg medially

32
Q

Gracilis Innervation

A

Obturator nerve (L2, L3) L2 main supplier

33
Q

What three muscles make up the Pes Anserinus

A

Distal Tendinous Attachment of:

Gracilis
Semitendinosus
Sartorius

34
Q

What does Pes Anserinus Mean?

A

Goose’s foot

35
Q

Semitendinosus Attachment

A

ischial tuberosity

pes anserinus

36
Q

Semitendinosus Action

A

extends thigh at hip

flexes leg at knee

medially rotates leg if knee flexed

37
Q

Semitendinosus Innervation

A

tibial division of sciatic nerve (L5, S1, S2)

L5 and S1 main suppliers

38
Q

Semimembranosus Attachments

A

ischial tuberosity

posterior aspect medial tibial condyle, forms oblique popliteal ligament

39
Q

Semimembranosus Action

A

extends thigh at hip

flexes leg at knee

medially rotates leg if knee flexed

40
Q

Semimembranosus Innervation

A

tibial division of sciatic nerve (L5, S1, S2) L5, S1 main suppliers

41
Q

Biceps Femoris Attachments

A

long head: ischial tuberosity

short head: linea aspera and lateral supracondylar line

head of fibula

42
Q

Biceps Femoris Action

A

flexion of leg at knee

extension of thigh at hip

laterally rotates leg if knee flexed

43
Q

Biceps Femoris Innervation

A

long head:
tibial division of sciatic nerve (L5, S1, S2) S1 main supplier

short head:
common fibular division of sciatic nerve (L5, S1, S2) S1 main supplier

BMS172 - anatomy lower limb (13 decks)

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