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Spot test 2 > Thigh muscles > Flashcards

Thigh muscles Flashcards

1
Q

What is the innervation of Biceps femoris?

A

The sciatic nerve L5,S1,S2

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2
Q

where does the long head of biceps femoris originate?

A

The ischial tuberosity - Inferomedial part

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3
Q

Where does the short head of biceps femoris originate?

A

Linea aspera - lateral lip

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4
Q

What is the function of biceps femoris?

A

Extension of thigh
Lateral rotation
Flexes leg at knee joint

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5
Q

Which three muscles make up the hamstrings?

A

Biceps Femoris
Semimembranosus
Semitendinosus

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6
Q

Where does semitendinosus originate?

A

Ischial tuberosity - inferiomedial part

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7
Q

Where does semitendinosus insert?

A

proximal tibia - medial surface

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8
Q

what is the innervation of the hamstring muscles?

A

Sciatic nerve L5, S1, S2

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9
Q

What is the innervation of semitendinosus?

A

Sciatic nerve

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10
Q

What is the function of semitendinosus?

A

Extend thigh at hip joint
Medial rotation
Flexes leg at knee joint

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11
Q

What is the origin of semimembranosus?

A

Ischial tuberosity - superolateral impression

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12
Q

Where does semimembranosus insert?

A

Medial tibial condyle - groove and adjacent bone

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13
Q

Which hamstring inserts onto the medial tibial condyle?

A

Semimembranosus

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14
Q

What innervates the semimembranosus muscle?

A

Sciatic nerve

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15
Q

What are the functions of Semimembranosus

A

Extend thigh at hip joint
Medial rotation
Flex leg at knee joint

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16
Q

Which hamstring laterally rotates the thigh?

A

Biceps femoris

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17
Q

which muscles medially rotate thigh?

A

Semimembranosus and semitendinosus

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18
Q

Name the two parts of adductor magnus?

A

The adductor part and the Hamstring part

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19
Q

Where does the hamstring part of adductor magnus originate?

A

Ischial tuberosity

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20
Q

where does the adductor part of adductor magnus originate?

A

The ischiopubic ramus

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21
Q

Where does the Hamstring part of adductor magnus insert?

A

The Supracondyler line and the adductor tubercle

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22
Q

Where does the adductor part of adductor magnus insert?

A

Linea asper and posterior surface of femur

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23
Q

Innervation of Adductor part of adductor magnus?

A

Obturator nerve L2,L3,L4

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24
Q

Innervation of Hamstring part of adductor magnus?

A

Sciatic Nerve L2, L3, L4

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25
Q

What is the function of adductor magnus?

A

Adducts and medially rotates thigh at hip joint

26
Q

Where does sartorius originate?

A

Anterior superior iliac spine

27
Q

Which muscle inserts into the anterior surface of the tibia, inferolaterally to tibial tuberosity?

A

Sartorius

28
Q

Where does Sartorius insert?

A

Anterior surface of tibia

29
Q

What is the innervation of sartorius?

A

Femoral nerve L2,L3

30
Q

What is the function of sartorius?

A

Flexes thigh at hip joint

Flexes leg at knee joint

31
Q

Which muscle originates from transverse processes of T12 to L5 vertebrae?

A

psoas major

32
Q

Which muscle originates from the internal surface of the iliac fossa

A

Iiacus

33
Q

Where does iliopsoas muscle insert?

A

lesser trochanter of femur

34
Q

What is the function of iliopsoas?

A

Flexion of thigh at hip joint

35
Q

What is the innervation of the iliopsoas muscle?

A

Femoral nerve L2,L3

36
Q

Which muscle originates from both the anterior inferior iliac spine and the ilium?

A

Rectus femoris

37
Q

Where does rectus femoris insert?

A

Quadriceps femoris tendon

38
Q

Which nerve innervates rectus femoris?

A

Femoral nerve L2,L3,L4

39
Q

what is the function of rectus femoris?

A

Flex thigh at hip joint and extend leg at knee joint

40
Q

Where does Vastus medialis originate?

A

Femur - intertrochanteric line, pectineal line, lines aspera, supracondylar line

41
Q

Where does vastus medialis insert?

A

Quadriceps femoris tendon and medial margin of patella

42
Q

all vastus medialis, intermedialis and lateralis are innervated by which nerve?

A

Femoral nerve

43
Q

What is the function of vastus medialis, Vastus intermedius, and lateralis?

A

Extend leg at knee joint

44
Q

which muscle originates from the external body of pubis, the inferior pubic ramus, and the ramus of ischium?

A

Gracilis

45
Q

Where does gracilis insert?

A

Tibia - medial surface of proximal shaft

46
Q

Innervation of gracilis?

A

obturator nerve L2,L3

47
Q

what is the function of gracilis?

A

Flexes leg at knee joint

48
Q

which muscle originates from the pectineal line and adjacent bone of pelvis?

A

Pectineus

49
Q

Where does pectineus insert?

A

line extending from lesser trochanter to line aspera

50
Q

What is the innervation of pectineus?

A

Femoral nerve L2,L3

51
Q

what does pectineus do?

A

Adducts and flexes thigh at hip joint

52
Q

Which muscles originate from the external surface of body of pubis?

A

Adductor longs and adductor brevis

53
Q

Where does adductor longs insert?

A

Linea aspera - middle one third of shaft of femur

54
Q

Which adductor muscles does the obturator nerve innervate?

A

Adductor longus
Adductor brevis
Adductor part of adductor magnus

55
Q

What is the function of adductor longus?

A

Adducts and medial rotates thigh

56
Q

Which adductor muscle only adducts the thigh and does not medially rotate it?

A

Adductor brevis

57
Q

Where does adductor brevis insert?

A

linea aspera - upper third

58
Q

which muscle originates from external surface of obturator membrane and bone?

A

Obturator externus

59
Q

Where does obturator externus insert?

A

Trochanteric fossa

60
Q

What is the innervation of obturator externus?

A

Obturator nerve

61
Q

What is the function of obturator externus?

A

Laterally rotates thigh at hip joint.

Spot test 2 (14 decks)

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