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Anatomy Q1 > muscles of the hip > Flashcards

muscles of the hip Flashcards

1
Q

Which are the flexors of the hip?

A
  1. Iliopsoas (prime mover)
  2. Rectus Femoris
  3. Sartorius
  4. Tensor Fasciae Latae
    * Assisted by: Pectineus and Gracilis
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2
Q

The Quadriceps Femoris Group consists of the muscles:

A
  1. Rectus Femoris
  2. Vastus Medialis
  3. Vastus Lateralis
  4. Vastus Intermedius
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3
Q

Musculus Iliopsoas consists of the muscles:

A
  1. Iliacus
  2. Psoas Major
  3. Psoas Minor (present in 50% of the population and insignificant in the other half)
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4
Q

Origin, insertion and innervation of Iliacus:

A

O: Iliac fossa
I: Lesser Trochanter
Inn: femoral nerve

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5
Q

Origin, insertion and innervation of Psoas Major:

A

O: Bodies and transverse processes of lumbar vertebrae
I: Lesser trochanter
Inn: ventral rami L1,2,3 nerves

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6
Q

Origin, insertion and innervation of Rectus Femoris:

A

O: AIIS + above acetabulum (two heads)
I: Tibial Tuberosity
Inn: Femoral nerve

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7
Q

Which are the actions in the hip of Sartorius?

A
  • Flexion
  • Abduction
  • Lateral rotation
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8
Q

Origin, insertion and innervation of Sartorius:

A

O: ASIS
I: Medial side of tibia
Inn: Femoral nerve

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9
Q

Which are the extensors of the hip?

A
  1. Gluteus maximus (prime mover)
    * Assisted by: Gluteus Medius + Minimus
  2. Hamstrings
    * Assisted by: Adductor magnus
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10
Q

Origin, insertion and innervation of Gluteus Maximus:

A

O: Ileum-posterior gluteal line / Sacrum / coccyx
I: Iliotibial Tract = 3/4 of muscle (superficial layers)
Femur - gluteal tuberosity + linea aspera remaining 1/4 of muscle
Inn: Inferior gluteal nerve

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11
Q

Hamstrings consist of 3 parts:

A

posterolateral -> m. Biceps Femoris

posteromedial -> m. Semimembranosus + m. Semitendinosus

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12
Q

Origin, insertion and innervation of Biceps Femoris:

A

O: Long head - Ischial tuberosity
Short head - lateral lip of linea aspera
I: Head of the fibula
Inn: sciatic nerve

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13
Q

Origin, insertion and innervation of Semitendinosus:

A

O: Ischial tuberosity
I: Proximal, medial shaft of the tibia
Inn: sciatic nerve

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14
Q

Origin, insertion and innervation of Semimembranosus:

A

O: Ischial tuberosity
I: posterior aspect of medial condyle of tibia
Inn: sciatic nerve

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15
Q

Which are the abductors of the hip?

A
  1. Gluteus Medius (prime mover)
  2. Tensor Fasciae Latae (TFL)
  3. Gluteus Minimus
    * Assisted by:
    - Gluteus Maximus
    - Piriformis
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16
Q

Origin, insertion and innervation of Gluteus medius + minimus:

A

O: Gluteal surface of Ilium (just below the Iliac crest)
I: Lateral aspect of greater trochanter
Inn: superior gluteal nerve

17
Q

Origin, insertion and innervation of Tensor Fasciae Latae:

A

O: Iliac crest, posterior to the ASIS
I: Iliotibial tract
Inn: Inferior gluteal nerve

18
Q

The functions of Iliotibial tract are:

A
  • Stabilizing the pelvis on the hip
  • Stabilizing the knee
  • Supports the femur
19
Q

What is the ‘‘Trandelenburg sign’’ ?

A

weak abductors

20
Q

The insertion of Iliotibial tract is:

A

Lateral condyle of tibia

21
Q

Which are the adductors of the hip?

A
  1. Adductor Magnus (prime mover)
  2. Adductor Longus
  3. Adductor Brevis
  4. Gracilis
  5. Pectineus
    * Assisted by:
    - Gluteus maximus
    - Hamstrings
    - Quadratus femoris
22
Q

Origin, insertion and innervation of Adductor Magnus:

won’t be in the exam

A

O: Ischium tuberosity
I: Medial lip of linea aspera and adductor tubercle
Inn: Obturator and sciatic nerve

23
Q

Adductor Magnus is Synergist (helper) for:

A
  • Hip extension

- Medial rotation

24
Q

Origin, insertion and innervation of Adductor Longus:

A

O: Pubic tubercle
I: medial lip of linea aspera (femur)
Inn: Obturator nerve

25
Q

Origin, insertion and innervation of Adductor Brevis:

won’t be in the exam

A

O: inferior ramus of pubis
I: Pectineal line and medial lip of linea aspera (femur)
Inn: Obturator nerve

26
Q

Origin, insertion and innervation of Pectineus:

won’t be in the exam

A

O: Superior ramen of pubis
I: lesser trochanter
Inn: femoral nerve

27
Q

Origin, insertion and innervation of Gracilis:

A

O: inferior ramen of pubis
I: medial surface tibia
Inn: Obturator nerve

28
Q

Which adductor muscle is bi-articular muscle ?

A

Gracilis (hip and knee)

29
Q

Which muscles are medially rotating the hip?

A
  1. Gluteus medius
  2. Tensor Fasciae Latae
  3. Gluteus minimus
    * Some assistance by:
    - Adductor magnus
    - Pectineus
30
Q

Which muscles are laterally rotating the hip?

A
  1. Gluteus maximus
  2. Piriformis
  3. Sartorius
  4. Obturator externus and internus
  5. Gemellus superior and inferior
  6. Quadratus femoris
  7. Adductor magnus
  8. Gluteus medius + minimus
31
Q

Origin, insertion and action of Piriformis:

A

O: Anterior surface of sacrum
I: superior aspect of greater trochanter
A: Laterally rotate the hip
Abduct the hip when the hip is flexed

32
Q

Origin, insertion and action of Quadratus Femoris:

A

O: Lateral border of ischial tuberosity
I: Intertrochanteric crest ( between the greater and lesser trochanter)
A: Laterally rotate the hip

33
Q

Origin, insertion and action of Obturator Internus:

A

O: Obturator membrane and inferior surface of obturator foramen
I: Medial surface of greater trochanter
A: Laterally rotate the hip

34
Q

Origin, insertion and action of Obturator Externus:

A

O: Rami of pubis and ischium, obturator membrane
I: Trochanteric fossa of femur
A: Laterally rotate the hip

35
Q

Origin, insertion and action of Gamellus Superior:

A

O: Ischial spine
I: Medial surface of greater trochanter
A: Laterally rotate the hip

36
Q

Origin, insertion and action of Gamellus Inferior:

A

O: Ischial tuberosity
I: Medial surface of greater trochanter
A: Laterally rotate the hip

Anatomy Q1 (4 decks)

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