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esp sm1 > Anatomy 1 - Upper leg muscles > Flashcards

Anatomy 1 - Upper leg muscles Flashcards

1
Q

Origin of sartorius?

A

Anterior superior iliac spine (ASIS)

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2
Q

Insertion of sartorius?

A
  • Proximal head of tibia below medial condyle
  • (via common tendon of the pes anserinus)
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3
Q

What is the pes anserinus?

A

Conjoined tendons (insertion) of sartorius, gracilis, and semitendinosus muscles

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4
Q

Function of sartorius?

A
  • Flexion, weak AB/AD, ER of hip joint
  • Flexion, IR of knee joint

–> Synergist muscle

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5
Q

Origin of rectus femoris?

A
  • Anterior inferior iliac spine (AIIS)
  • acetabular roof of the hip (superior ridge of the acetabulum)
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6
Q

Insertion of rectus femoris?

A
  • Patella via the common quadriceps tendon
  • Inserting on the tibial tuberosity via patellar ligament
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7
Q

Function of rectus femoris?

A
  • Hip flexion (only quadriceps muscle able to do so)
  • Knee extension
  • (prevents entrapment of the capsule –> articulis genus)
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8
Q

Origin of vastus lateralis?

A
  • Lateral surface of the greater trochanter
  • Lateral lip of the linea aspera of the femur
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9
Q

Insertion of vastus lateralis?

A
  • Patella base via the common quadriceps tendon
  • Lateral tibial tuberosity via the patellar ligament (apex of the patella)
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10
Q

Function of vastus lateralis?

A

Knee extension

(prevents entrapment of the capsule –> articulis genus)

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11
Q

Origin of vastus intermedius?

A

Anterior upper surface of femoral shaft

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12
Q

Insertion of vastus intermedius?

A
  • Patella via the common quadriceps tendon
  • Inserting on the tibial tuberosity via patellar ligament
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13
Q

Function of vastus intermedius?

A

Knee extension

(prevents entrapment of the capsule –> articulis genus)

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14
Q

Origin of vastus medialis?

A
  • Intertrochanteric line of the femur
  • Medial lip of the linea aspera of the femur
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15
Q

Insertion of vastus medialis?

A
  • Patella via the quadriceps tendon
  • Medial tibial tuberosity via the patellar ligament
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16
Q

Function of vastus medialis?

A

Knee extension

(prevents entrapment of the capsule –> articulis genus)

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17
Q

What are the two heads biceps femoris is constituted of?

A
  • Long head (caput longum)
  • Short head (caput breve)
18
Q

Origin of biceps femoris?

A
  • Long head: ischial tuberosity + sacrotuberous ligament (common semitendinosus and semimembranosus)
  • Short head: linea aspera of the femur (lateral lip)
19
Q

Insertion of biceps femoris?

A

Head of fibula (lateral surface)

20
Q

Function of biceps femoris?

A
  • Hip E
  • Knee Flexion and ER
21
Q

Origin of semitendinosus?

A

Ischial tuberosity + sacrotuberous ligament (common biceps femoris and semimembranosus)

22
Q

Insertion of semitendinosus?

A
  • Medial tuberosity of the tibia
  • (via common tendon of the pes anserinus)
23
Q

Function of semitendinosus?

A
  • Hip E, IR
  • Stabilises pelvis
  • Knee flexion, IR
24
Q

Origin of Semimembranosus?

A
  • Ischial tuberosity (inferior pelvis)
  • Sharing a common tendon with semimembranosus and biceps femoris
25
Q

Insertion of Semimembranosus?

A

Medial condyle of tibia

26
Q

Function of Semimembranosus?

A
  • Hip: E, IR + stabilises pelvis
  • Knee: Flexion, IR
27
Q

Origin of gracilis?

A

Inferior ischiopubic ramus + body pubis (inferior pubic ramus)

28
Q

Insertion of gracilis?

A

Pes anserinus (medial tibia)

29
Q

Function of gracilis?

A
  • Hip: F, ADD
  • Knee: F, IR
30
Q

Origin of pectineus?

A

Superior pubic ramus (pectineal line of pubis)

31
Q

Insertion of pectineus?

A
  • Linea aspera of femur
  • Pectineal line of femur
32
Q

Function of pectineus?

A

F, ADD, of hip

+ stabilises pelvis
+ can assist hip IR

33
Q

Origin of adductor longus?

A

Body pubis, lateral to pubic symphysis

34
Q

Insertion of adductor longus?

A

Linea aspera of femur

(btw vastus medialis - adductor magnus)

35
Q

Function of adductor longus?

A

Powerful AD, IR of the hip (hip flexion as a synergist)

36
Q

Origin of adductor brevis?

A

Inferior pubic ramus

37
Q

Insertion of adductor brevis?

A

Linea aspera of femur

38
Q

Function of adductor brevis?

A

F, ADD, ER of the hip

+ stabilises pelvis

39
Q

Origin of adductor magnus?

A

Can be considered in two portions: hamstring-adductor

  • Adductor: inferior ischiopubic ramus (pubic ramus + ischial ramus)
  • Hamstring: ischial tuberosity
40
Q

Insertion of adductor magnus?

A
  • Linea aspera of the femur
  • Adductor tubercle on the medial condyle of the femur (medial epicondyle)
41
Q

Function of adductor magnus?

A

F, E, ADD, ER, IR of the hip

+ stabilises pelvis

esp sm1 (7 decks)

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