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Human Locomotor Systems > Muscles of the Hip and Thigh > Flashcards

Muscles of the Hip and Thigh Flashcards

1
Q

How many groups are the muscles divided into and what are they?

A

4 groups: Anterior, medial, posterior and lateral femoral muscles.

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2
Q

What are the anterior femoral muscles?

A
  • Sartorius
  • Quadriceps femoris (combined rectus femoris and vastus muscles)
  • Articularis genus
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3
Q

What are the origin and insertion of sartorius?

A

Origin: Anterior superior spine of ilium and the notch just below the spine

Insertion: Medial surface of the tibia, below tuberosity.

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4
Q

What action does sartorius produce?

A

Flexion, abduction, lateral rotation

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5
Q

What are the four parts of Quadriceps Femoris?

A
  • Rectus femoris
  • Vastus lateralis
  • Vastus medialis
  • Vastus intermedius
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6
Q

What are the origin and insertion of Rectus femoris?

A
  • Arises via two tendons: Straight and reflected
  • Tendons unite at an acute angle and continue into a central aponeurosis

Origin: (straight) anterior surface of spine of ilium, (reflected) groove above the acetabulum.

Insertion: Proximal border of patella and spreads to form the patellar ligament

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7
Q

What are the origin and insertion of Vastus lateralis?

A

Origin: Broad aponeurosis attached to the upper intertrochanteric line, anterior and inferior borders of the greater trochanter, gluteal tuberosity, lateral lip of linea aspera, lateral intermuscular septum.

Insertion: Superolateral border of patella and lateral condyle of tibia.

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8
Q

What are the origin and insertion of vastus medialis?

A

Origin: medial lip of linea aspera, distal half of the intertrochanteric line and medial intermuscular septum.

Insertion: Tendon of the rectus femoris, the superomedial border of patella and medial condyle of the tibia.

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9
Q

What are the origin and insertion of vastus intermedius

A

Origin: Shaft of femur, lower half of lateral lip of linea aspera, lateral intermuscular septum.

Insertion: Fibers end in superficial aponeurosis, which blends with the deep surface of the tendons of the rectus femoris and with the VM and VL muscles.

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10
Q

What action does the quadriceps femoris produce?

A
  • Extension at the knee

- RF is also involved with flexion at the thigh at the hip.

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11
Q

What are the origin and insertion of articularis genus?

A

Origin: Lower quarter of the front of femur

Insertion: Upper synovial membrane of knee joint.

  • Lie deep to VI.
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12
Q

What are the medial femoral muscles?

A
  • Gracilis
  • Pectineus
  • Adductor longus
  • Adductor magnus
  • Obturator externus muscles
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13
Q

What are the origin and insertion of the gracilis?

A

Origin: Pubic symphisis and inferior ramus of the pubis

Insertion: Upper shaft of tibia between tendons of sartorius and semitendinosus

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14
Q

What action does gracilis carry out?

A

Adduction of the thigh and assists in flexion at the knee.

Flexion and medial rotation of the thigh at the hip.

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15
Q

What are the origin and insertion of the pectineus muscle?

A
  • Origin: Pecten of the pubis, surface of bone below pecten, between iliopubic eminence laterally and pubic tubercle medially.
  • Insertion: Pectineal line of femur
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16
Q

What action does pectineus carry out?

A

Adducts, rotates medially and assists in flexion of the thigh

17
Q

What are the origin and insertion of the adductor longus?

A
  • Origin: Medial superior ramus of the pubis

- Insertion: medial lip of the linea aspera of femur, between tendons of VM and AM.

18
Q

What action does adductor longus carry out?

A
  • Adducts the thigh and assist in medial rotation and flexion.
19
Q

What are the origin and insertion of adductor brevis?

A
  • Origin: Inferior pubic ramus

- Insertion: Lower two thirds of pectineal line of the femur, and upper half of the medial lip of linea aspera

20
Q

What actions does adductor brevis carry out?

A

Adducts the thigh, and assists in its flexion and medial rotation.

21
Q

What are the origin and insertion of adductor magnus?

A
  • Origin: Lower inferior pubic ramus, ramus of ischium and ischial tuberosity.
  • Insertion: (Upper) medial side of the gluteal ridge and uppermost linea aspera of femur. ***
22
Q

What actions does adductor magnus carry out?

A

Adduction and assists in flexion and medial rotation of the thigh

23
Q

What is the origin and insertion of the obturator externis?

A
  • Origin: External aspect of superior and inferior rami of the pubis and ramus of ischium.
  • Insertion: Trochanteric fossa of the femur.
24
Q

What action does obturator externis carry out?

A

lateral rotator of the thigh

25
Q

What is the action of the tensor fasciae latae?

A

It tightens the iliotibial tract, which helps extend and stabilize the knee joint. It also aids in flexion and abduction of the hip joint

26
Q

What is the action of the iliopsoas muscle?

A

It is the main flexor of the thigh at the hip joint

27
Q

What are the posterior femoral muscles?

A

Semitendinosus, semimembranosus, biceps femoris

28
Q

What are the origin and insertion of ST?

A
  • Origin: Upper and medial ischial tuberosity

- Insertion: Superior part of medial surface of tibia

29
Q

What are the actions of ST?

A

Flexion of the leg, extension of the thigh

30
Q

What are the origin and insertion of SM?

A
  • Origin: Upper and lateral ischial tuberosity

- Insertion: Posterior part of medial condyle of tibia

31
Q

What are the actions of SM?

A

Flexion of the leg and extension of the thigh

32
Q

What are the origin and insertion of Biceps Femoris?

A
  • Origin: Long head - ischial tuberosity; short head - lateral lip of linea aspera
  • Insertion: Head of fibula, lateral condyle of tibia
33
Q

What are the actions of BF?

A

Flexion and lateral rotation of the leg, extension of the thigh.

34
Q

What are the origin and insertion of Psoas major (iliopsoas)?

A
  • Origin: Sides of T12-L5 vertebrae and discs between them; transverse processes of all lumbar vertebrae
  • Insertion: Lesser trochanter of femur
35
Q

What actions does psoas major carry out?

A

Acts with iliacus in flexing thigh at hip joint and in stabilising the hip joint

36
Q

What are the origin and insertion of iliacus (iliopsoas)?

A
  • Origin: Iliac crest, iliac fossa, ala of sacrum, anterior sacroiliac ligaments
  • Insertion: Tendon of psoas major, lesser trochanter and femur.
37
Q

What actions for iliacus carry out?

A

Acts with psoas major in flexing thigh at the hip joint and in stabilising the hip joint.

Human Locomotor Systems (13 decks)

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