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CM MSK Anatomy > Thigh > Flashcards

Thigh Flashcards

1
Q

What muscles are in the anterior thigh?

A

Articularis genus
Illiopsoas
Sartorius
Rectus femoris, vastus intermedius, lateralis and medialis

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2
Q

What muscles are anterior thigh flexors?

A

Articularis genus
Iliopsoas
Sartorius

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3
Q

What muscles are anterior thigh extensors?

A

Rectus femoris
Vastus intermedius
Vastus lateralis
Vastus medialis

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4
Q

Of all the anterior thigh muscles, which one is not supplied by the femoral nerve?

A

Psoas major (Iliopsoas)

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5
Q

What nerve is the psoas major supplied by?

A

Ventral rami of first lumbar nerve

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6
Q

Which muscles of the anterior thigh flexors are not supplied by the femoral artery?

A

Iliopsoas

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7
Q

What artery is the iliopsoas supplied by?

A

Illiacus - iliac branches of iliolumbar artery

Psoas major - lumbar braches of iliolumbar artery

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8
Q

What do all 4 quadriceps femoris muscles do?

A

Extend the leg at the knee joint

Rectus femoris also flexes the thigh at the hip joint

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9
Q

What is the action of the Sartorius?

A

Abducts
Laterally rotates the hip
Flexes thigh
Flexes knee

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10
Q

What is the action of the Illiacus?

A

Flexes thigh at hips

Stabilises the hip joint

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11
Q

What is the function of the Psoas major?

A

Flexes hip

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12
Q

What is the action of the Articularus genus?

A

Pulls suprapatellar bursa superiorly

Extension of knee

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13
Q

What are the attachments of the Sartorius?

A

ASIS to medial tibia

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14
Q

What are the attachments of the Articularis genus?

A

Distal femur to supra patellar bursa?

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15
Q

What are the attachments of the Illiacus?

A

Iliac crest to lesser trochanter of femur

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16
Q

What are the attachments of the Psoas major?

A

Lumbar vertebrae (T12 - L5) to lesser trochanter of femur

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17
Q

What are the attachments of the Rectus femoris?

A

AIIS to tibia

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18
Q

What are the attachments of the Vastus intermedius?

A

Body of femur to base of patella and tibial tuberosity (via patellar ligament)

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19
Q

What are the attachments of the Vastus lateralis?

A

Greater trochanter to base of patella and tibial tuberosity (via patellar ligament)

20
Q

What are the attachments of the Vastus medialis?

A

Intertrochanteric line to base of patella and tibial tuberosity (via patellar ligament)

21
Q

Where do all vastus muscles attach to inferiorly?

A

Base of patella and tibial tuberosity (via patellar ligament)

22
Q

Name the muscles of the medial thigh

A 
Adductor brevis
Adductor longs
Adductor magnus
Gracillis
Obturator externus
Pectineus
23
Q

What nerve are most of these muscles innervated by?

A

Obturator nerve

24
Q

What nerve is the adductor magnus supplied by?

A

Obturator nerve

Sciatic nerve - hamstring

25
Q

What nerve is the pectineus supplied by?

A

Obturator nerve

Femoral nerve

26
Q

What is the action of medial thigh muscles?

A

Adduct thigh at the hip

27
Q

What is the action of the adductor magnus?

A

Adducts thigh
Flexes thigh
Extends thigh - hamstring

28
Q

What is the action of the gracilis?

A

Adducts thigh

Flexes and medially rotates the leg

29
Q

What is the action of the obturator externus?

A

Adducts thigh
Laterally rotates thigh
Stabilises HOF in acetabulum

30
Q

What is the action of the pectineus?

A

Adducts thigh

Flexes thigh

31
Q

What are the attachments of the adductor brevis?

A

Inferior pubic ramus to linea aspera of femur

32
Q

What are the attachments of the adductor longus?

A

Inferior pubic ramus to middle 1/3rd of linea aspera of femur

33
Q

What are the attachments of the adductor magnus?

A

Inferior pubic ramus to gluteal tuberosity

Ischial tuberosity to adductor tubercle of femur - hamstring

34
Q

What are the attachments of the gracilis?

A

Inferior pubic ramus to tibia

35
Q

What are the attachments of the obturator externus?

A

Obturator foramen to trochanteric fossa of femur

36
Q

What are the attachments of the pectineus?

A

Superior pubic rami to pectineal line of femur

37
Q

What is the arterial supply to the medial muscles?

A

Profundal femoris
Medial circumflex
Femoral
Obturator (all except gracilis and longus)

38
Q

Name the posterior thigh muscles

A

Biceps femoris
Semimebranous
Semitendinosus

39
Q

What nerve innervates the posterior thigh muscles?

A

Sciatic nerve

40
Q

What is the arterial supply to the posterior thigh muscles?

A

Profundal femoris
Medial circumflex
Femoral

41
Q

What are the attachments of the semimembranosus?

A

Ischial tuberosity to posterior of medial condyle of tibia

42
Q

What are the attachments of the semitendinosus?

A

Ischial tuberosity to superior part of medial surface of tibia

43
Q

What are the attachments of the biceps femoris?

A

Ischial tuberosity to lateral side of head of fibula - long head
Linea aspera to tibia - short head

44
Q

What is the action of the semi muscles?

A

Flexes leg

Extends thigh

45
Q

What is the action of the biceps femoris?

A

Flexes leg
Laterally rotates leg
Extends thigh at hip

46
Q

What do all the quadratus femoris muscles attach to inferiorly?

A

Base of patella and tibial tuberosity via patella ligament

CM MSK Anatomy (10 decks)

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