Muscles- THE ANTERIOR COMPARTMENT OF THE THIGH Flashcards

1
Q

In general, what are the Actions of the Muscles in the ANTERIOR COMPARTMENT of the Thigh?

A

HIP FLEXION

KNEE EXTENSION

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2
Q

Which NERVE Innervates the Muscles of the ANTERIOR COMPARTMENT?

A

The Femoral Nerve (L2,L3,L4)

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3
Q

List the Muscles of the ANTERIOR COMPARTMENT of the Thigh

A
  1. Sartorius
  2. Iliopsoas
  3. Pectineus
  4. Vastus Medialis
  5. Vastus Intermedius
  6. Vastus Lateralis
  7. Rectus Femoris
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4
Q

What is the proximal attachment of the Pectineus muscle?

A

Superior Pubic Ramus

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5
Q

What is the Distal attachment of the Pectineus muscle?

A

Pectineal Line of the Femur

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6
Q

Pectineus Attachments

A
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7
Q

Pectineal Line of Femur

A
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8
Q

What are the actions of the Pectineus Muscle?

A

Hip Flexion and Adduction

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9
Q

Apart from the femoral nerve, which other nerve may also innervate the Pectineus muscle?

A

The OBTURATOR NERVE

  • The pectineus is considered TRANSITIONAL MUSCLE between the anterior and medial compartments
  • The Pectineus can both Flex and Adduct the Hip
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10
Q

What is the most powerful flexor of the hip joint?

A

The ILIOPSOAS

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11
Q

What is the proximal attachment of the Psoas Major and Psoas Minor Muscles?

A
  • Psoas Major- T12-L5 Vertebra Transverse processes and Discs

-Psoas Minor- T12-L1Vertebra Transverse processes and Discs

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12
Q

What is the Distal attachment of the Psoas Major and Psoas Minor Muscles?

A
  • Psoas Major- Lesser Trochanter of the Femur

-Psoas Minor- Pectineal Line

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13
Q

What Nerves innervate the Psoas Muscle?

A

Anterior Rami of L1, L2, L3

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14
Q

Psoas Muscle

A
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15
Q

What is the proximal attachment of the ILIACUS MUSCLE?

A

Iliac Crest, Iliac fossa, Sacroiliac Ligaments

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16
Q

What is the Distal attachment of the ILIACUS MUSCLE?

A

Lesser Trochanter

17
Q

What Nerve Innervates the Iliacus Muscle?

A

FEMORAL NERVE (L2, L3, L4)

18
Q

What is the Action of the ILIOPSOAS MUSCLE?

A

Hip Flexion

19
Q

IlIACUS

A
20
Q

What is the proximal attachment of the SARTORIUS MUSCLE?

A

Anterior Superior Iliac Spine

21
Q

What is the distal attachment of the SARTORIUS MUSCLE?

A

Superior part of the Medial surface of the TIBIA

22
Q

What Nerve Innervates the SARTORIUS MUSCLE?

A

Femoral Nerve (L2, L3, L4)

23
Q

What are the Actions of the SARTORIUS Muscle?

A

Hip Flexion, Hip Abduction, Lateral Rotation of the Thigh

24
Q

What is the LONGEST MUSCLE in the body?

A

SARTORIUS

25
Q

SARTORIUS MUSCLE

A
26
Q

What are the components of the QUADRICEPS FEMORIS?

A
  1. Vastus Lateralis
  2. Vastus Medialis
  3. Vastus Intermedius
  4. Rectus Femoris
27
Q

What is the Proximal Attachment of the VASTUS LATERALIS ?

A

Greater Trochanter
Linea Aspera of Femur

28
Q

Linea Aspera of Femur

A
29
Q

What is the Proximal Attachment of the VASTUS MEDIALIS ?

A

Intertrochanteric Line
Linea Aspera of Femur

30
Q

What is the Proximal Attachment of the VASTUS INTERMEDIUS ?

A

Shaft of the Femur

31
Q

What is the Proximal Attachment of the RECTUS FEMORIS?

A

Anterior Inferior Iliac Spine

32
Q

Anterior Inferior Iliac Spine

A
33
Q

Where does the QUADRICEPS FEMORIS attach Distally?

A

Patella via the Quadriceps Tendon

34
Q

Quadriceps Tendon

A
35
Q

What is the Patellar Ligament?

A

-Continuation of the Quadriceps Tendon
-Connects the Patellar to the Tibial Tuberosity