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T1 ANATOMY > Muscles of the Thigh > Flashcards

Muscles of the Thigh Flashcards

1
Q

A four-headed muscle with a common distal attachment at the tibial tuberosity via the patellar ligament. It is the prime mover for extension of the knee.

A

Quadriceps

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2
Q

What are the 4 muscles that make up quadriceps?

A

1) Rectus Femoris
2) Vastus Lateralis
3) Vastus Medialis (& VMO)
4) Vastus Intermedius

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3
Q

A straight two-headed muscle that is bipennate and it is the only quadriceps muscle to cross the hip joint.

A

Rectus Femoris

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4
Q

Proximal Attachment: AIIS and superior acetabular rim

Distal Attachment: tibial tuberosity via patellar ligament

A

Rectus Femoris

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5
Q

What are the 2 actions of rectus femoris?

A

1) Knee extension

2) Hip flexion

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6
Q

Proximal Attachment: lateral lip of linea aspera

Distal Attachment: tibial tuberosity via patellar ligament

A

Vastus Lateralis

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7
Q

What is the action of vastus lateralis?

A

Knee extension

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8
Q

Proximal Attachment: medial lip of linea aspera

Distal Attachment: tibial tuberosity via patellar ligament

A

Vastus Medialis

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9
Q

What is the action of vastus medialis?

A

Knee extension

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10
Q

Proximal Attachment: medial distal femur, vastus medialis, and adductor magnus
Distal Attachment: medial patella

A

Vastus Medialis Obliquus

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11
Q

What are the 2 actions of vastus medialis obliquus?

A

1) Knee Extension
2) Pull Patella Medially to Prevent Excessive Lateral Tracking

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12
Q

Proximal Attachment: proximal 2/3 of femur
Distal Attachment: tibial tuberosity via patellar ligament

A

Vastus Intermedius

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13
Q

What is the action of vastus intermedius?

A

Knee Extension

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14
Q

Proximal Attachment: anterior distal femur
Distal Attachment: proximal articular capsule of knee joint

A

Articularis Genu

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15
Q

What is the action of articularis genu?

A

Pull Capsule Proximally During Knee Extension

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16
Q

What is the longest muscle in the body?

A

Sartorius

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17
Q

Proximal Attachment: ASIS
Distal Attachment: proximal anteromedial tibia

A

Sartorius

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18
Q

What are the 5 actions of sartorius?

A

1) Hip Flexion
2) Hip Abduction
3) Hip Lateral Rotation
4) Knee Flexion
5) Knee Medial Rotation

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19
Q

Proximal Attachment: anterior pubic bone (pectineal line)
Distal Attachment: just inferior to lesser trochanter

A

Pectineus

20
Q

What are the 2 actions of pectineus?

A

1) Hip Adduction
2) Hip Flexion (weak)

21
Q

Proximal Attachment: anterior pubic bone
Distal Attachment: proximal linea aspera

A

Adductor Brevis

22
Q

What are the 2 actions of adductor brevis?

A

1) Hip Adduction
2) Hip Flexion (Weak)

23
Q

Proximal Attachment: anterior pubic bone
Distal Attachment: middle 1/3 of linea aspera

A

Adductor Longus

24
Q

What are the 2 actions of adductor longus?

A

1) Hip Adduction
2) Hip Flexion (Weak)

25
Q

Proximal Attachment: anterior pubic bone
Distal Attachment: proximal anteromedial tibia

A

Gracilis

26
Q

What are the 3 actions of gracilis?

A

1) Hip Adduction
2) Knee Flexion
3) Knee Medial Rotation

27
Q

Which muscle is the only hip adductor that crosses the knee and the most medial of the adductor group?

A

Gracilis

28
Q

Proximal Attachment: anterior pubic bone
Distal Attachment: linea aspera

A

Adductor Magnus (Anterior Fibres)

29
Q

What are the 2 actions of the anterior fibres of adductor magnus?

A

1) Hip Adduction
2) Hip Flexion

30
Q

Proximal Attachment: ischial tuberosity
Distal Attachment: adductor tubercle

A

Adductor Magnus (Posterior Fibres)

31
Q

What are the 2 actions of the posterior fibres of adductor magnus?

A

1) Hip Adduction
2) Hip Extension

32
Q

An opening in the inferior attachment of adductor magnus, which allows for blood vessels to pass through.

A

Adductor Hiatus

33
Q

Proximal Attachment: ischial tuberosity
Distal Attachment: fibular head

A

Biceps Femoris (Long Head)

34
Q

What are the 4 actions of the long head of biceps femoris?

A

1) Hip Extension
2) Hip Lateral Rotation
3) Knee Flexion
4) Knee Lateral Rotation

35
Q

Proximal Attachment: linea aspera (mid-shaft)
Distal Attachment: fibular head

A

Biceps Femoris (Short Head)

36
Q

What are the 2 actions of the short head of biceps femoris?

A

1) Knee Flexion
2) Knee Lateral Rotation

37
Q

Proximal Attachment: ischial tuberosity
Distal Attachment: proximal anteromedial tibia

A

Semitendinosus

38
Q

What are the 4 actions of semitendinosus?

A

1) Hip Extension
2) Hip Medial Rotation
3) Knee Flexion
4) Knee Medial Rotation

39
Q

Proximal Attachment: ischial tuberosity
Distal Attachment: posterior aspect of medial condyle of tibia

A

Semimembranosus

40
Q

What are the 4 actions of semimebranosus?

A

1) Hip Extension
2) Hip Medial Rotation
3) Knee Flexion
4) Knee Medial Rotation

41
Q

A depression in the superomedial thigh (inferior to the inguinal ligament) that is observable during hip flexion.

A

Femoral Triangle

42
Q

The superior boundary of the femoral triangle is the ________ ________.

A

Inguinal Ligament

43
Q

The medial boundary of the femoral triangle is ________ ______.

A

Adductor Longus

44
Q

The lateral boundary of the femoral triangle is _________.

A

Sartorius

45
Q

The floor of the femoral triangle from medial to lateral is _________ and _________.

A

Pectineus
Iliopsoas

46
Q

The roof of the femoral triangle is ______ ____.

A

Fascia Lata

47
Q

The contents of the femoral triangle are the femoral ______, femoral ____ and femoral _____.

A

Femoral Artery
Femoral Vein
Femoral Nerve

T1 ANATOMY (31 decks)

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