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Muscle Tables > Anterior & Medial Thigh > Flashcards

Anterior & Medial Thigh Flashcards

1
Q

Where does psoas major insert? Originate?

A

Insertion: Lesser Trochanter of femur

Origin: T12 to L5 Vertebrae

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2
Q

Where does the Iliacus originate?

A

Iliac fossa

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3
Q

Where does the iliacus insert?

A

Lesser trochanter of femur

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4
Q

What innervates the Psoas major?

A

L1-L3 ventral Rami

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5
Q

What innervates the iliacus?

A

Femoral N. (L2-L4)

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6
Q

What is the action of the iliopsoas muscle?

A

hip flexion

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7
Q

What is the strongest hip flexor?

A

ilipsoas muscle

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8
Q

What are the four parts of the quadraceps femoris muscle?

A

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

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9
Q

Where does the rectus femoris muscle orginate?

A

Straight head - Anterior Inferior Iliac Spine (AIIS)

Reflected Head - Superior aspect of the acetabulum

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10
Q

Where does the vastus lateralis originate?

A

femur

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11
Q

Where does the vastus intermedius originate?

A

femur

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12
Q

Where does the vastus medialis originate?

A

femur

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13
Q

Where do all of the quadraceps femoris muscles insert?

A

Patella and Tibial tuberosity via the quadraceps tendon and patellar ligament

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14
Q

What innervates the entire quadraceps femoris muscle?

A

Femoral N. (L2-L4)

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15
Q

What are the actions of the quadraceps femoris muscles?

A

knee extension (primarily),

Rectus femoris can weakly flex the hip

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16
Q

Where does the sartorius muscle originate?

A

anterior superior iliac spine of ilium (ASIS)

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17
Q

Where does the sartorius insert?

A

the anterior slip of the pes anserinus on the medial aspect of the tibia

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18
Q

What innervates the sartorius muscle?

A

Femoral N. (L2-L4)

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19
Q

What are the actions of the sartorius muscle?

A

Sitting indian style:

Flexion, abduction, lateral rotation of femur

knee (tibia) flexion

20
Q

Where does the gracilis muscle originate?

A

pubis

21
Q

Where does the gracilis insert?

A

Middle slip of the pes anserinus on the medial aspect of the tibia

22
Q

What innervates the gracilis?

A

obturator N. (L2-L4)

23
Q

What are the actions of the gracilis muscle?

A

adduction of femur, knee flexion

24
Q

Where does the pectineus muscle originate?

A

pubis

25
Q

Where does the adductor longus muscle originate?

A

pubis

26
Q

Where does the pectineus insert?

A

pectineal line of the femur

27
Q

Where does the adductor longus insert?

A

linea aspera of femur

28
Q

what innervates the pectineus?

A

Femoral N (L2-L4)

29
Q

What innervates the adductor longus muscle?

A

Obturator N (L2-L4)

30
Q

What are the actions of the pectineus muscle?

A

adduction, medial rotation, and weak flexion of femur

31
Q

What are the actions of the adductor longus muscle?

A

adduction, medial rotation, and weak flexion of the femur

32
Q

Where does adductor brevis originate?

A

pubis

33
Q

Where does adductor brevis insert?

A

linea aspera of femur

34
Q

What innervates adductor brevis?

A

obturator N (L2-L4)

35
Q

What are the actions of adductor brevis?

A

Adduction, medial rotation, and weak flexion of thigh

36
Q

Where do both parts of adductor magnus originate?

A

pubis/ischium

37
Q

Where does the adductor part of adductor magnus insert?

A

linea aspera of femur

38
Q

Where does the hamstring part of adductor magnus insert?

A

Adductor tubercle of the femur

39
Q

What innervates adductor magnus?

A

Obturator N (L2-L4)

Tibial N (L4-S3)

40
Q

What innervates the adductor part of adductor magnus?

A

Obturator N (L2-L4)

41
Q

What innervates the hamstring part of adductor magnus?

A

Tibial N (L4-S3)

42
Q

What are the actions of adductor magnus?

A

Adduction of femur

Medial rotation of thigh

Hip flexion (adductor part)

Hip extension (hamstring part)

43
Q

Where does obturator externus originate?

A

pubis/Ischium (obturator foramen)

and Obturator membrane

44
Q

Where does obturator externus insert?

A

intertrochanteric fossa of femur

45
Q

What innervates the obturator externus muscle?

A

obturator n. (L2-L4)

46
Q

What are the actions of obturator externus?

A

lateral rotation of thigh

Muscle Tables (12 decks)

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