Lower Limb Muscles Anatomy Quiz

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Questions and Answers

What is the primary role of the Iliopsoas muscle?

  • Flexion of the hip (correct)
  • Abduction of the thigh
  • Extension of the hip
  • Stabilization of the pelvis

Which muscle is identified as an abducteur of the thigh?

  • Iliopsoas
  • Tibial Antérieur
  • Moyen Fessier (correct)
  • Ischio-Jambier

What is the origin of the Quadriceps muscle?

  • Tibia
  • Basin
  • Lumbar vertebrae
  • Femur and Basin (correct)

What is the primary function of the Popliteus muscle?

<p>Flexion of the knee (B)</p> Signup and view all the answers

Which muscle acts as a stabilizer of the pelvis?

<p>Tenseur du fascia lata (A)</p> Signup and view all the answers

What is the termination point of the Gastrocnemius muscle?

<p>Achilles tendon (A)</p> Signup and view all the answers

Which muscle is responsible for flexion at the ankle?

<p>Tibial Antérieur (C)</p> Signup and view all the answers

Which statement accurately describes the Ischio-Jambier muscle?

<p>Extends the hip and flexes the knee (A)</p> Signup and view all the answers

What is the role of the tensor fascia lata muscle?

<p>Stabilization of the pelvis (B)</p> Signup and view all the answers

Which of the following muscles is responsible for extension at the hip joint?

<p>Gluteus maximus (C)</p> Signup and view all the answers

Where does the origin of the gastrocnemius muscle occur?

<p>Femur (C)</p> Signup and view all the answers

Which muscle terminates at the proximal tibia?

<p>Sartorius (D)</p> Signup and view all the answers

What is the main role of the ischio-jambier muscles?

<p>Flexion of the knee (D)</p> Signup and view all the answers

Which muscle is known for its role in plantar flexion?

<p>Soleus (C)</p> Signup and view all the answers

What is the primary function of the tibialis anterior?

<p>Dorsiflexion of the foot (D)</p> Signup and view all the answers

The origin of the quadriceps muscle involves which of the following?

<p>Femur and Pelvis (A)</p> Signup and view all the answers

Flashcards

What is the Quadriceps?

A large muscle located on the front of the thigh, it has four heads, and is responsible for extending the leg at the knee and flexing the thigh at the hip.

What is the Adductor muscle group?

It originates from the pubis and inserts on the femur, its function is to bring the thigh towards the midline of the body (adduction) and also assists in flexing the thigh.

What is the Hamstring?

A muscle located in the back of the thigh, its function is to extend the thigh at the hip and flex the leg at the knee.

What is the Gastrocnemius?

Located in the calf, its function is to plantarflex the foot (point the toes) and also assists in flexing the knee.

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What is the Tibialis Anterior?

Located on the front of the lower leg, its function is to dorsiflex the foot (lift the toes) and also assists in inverting the foot.

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What are the Adductor Muscles?

A group of muscles located on the inner side of the thigh, it helps to bring the thigh towards the midline of the body (adduction) and also assists in flexing the thigh.

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What is the Gluteus Maximus?

A large muscle group located on the back of the hip, its function is to extend and rotate the thigh outwards.

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What is the Iliopsoas?

A muscle located on the front of the thigh, it helps to flex the thigh at the hip and also assists in rotating the thigh.

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What are the Hip Muscles?

This muscle group, which includes the iliopsoas, gluteus maximus, and others, is responsible for all the movements at the hip joint.

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What are the Hamstrings?

This muscle group, found in the back of the thigh, helps you extend the hip and bend the knee. This group plays a significant role in running and walking and can be prone to injury.

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What are the Adductors?

These muscles work as a group to adduct the leg (bring it towards the midline of the body), and also assist in flexing the thigh. These muscles can be found along the inner thigh.

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What is the Sartorius?

This muscle, found on the inner side of the thigh, is responsible for flexing the hip, knee, and also assists in external rotation of the thigh.

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Study Notes

Lower Limb Muscles: Hip

  • Ilio-Psoas:

    • Origin: Lumbar region
    • Insertion: Femur
    • Action: Hip flexion
  • Gluteus Medius:

    • Origin: Pelvis
    • Insertion: Femur
    • Action: Hip abduction
  • Gluteus Maximus:

    • Origin: Pelvis
    • Insertion: Femur
    • Action: Hip extension

Lower Limb Muscles: Knee

  • Quadriceps:

    • Origin: 4 heads (femur, pelvis)
    • Insertion: Patella, tibia
    • Action: Knee extension; stabilizes knee
  • Sartorius:

    • Origin: Iliac spine
    • Insertion: Proximal tibia
    • Action: Knee flexion, hip adduction, and external rotation
  • Hamstring (Semitendinosus):

    • Origin: Ischial tuberosity
    • Insertion: Proximal tibia
    • Action: Knee flexion, hip extension
  • Hamstring (Biceps Femoris):

    • Origin: Ischial tuberosity, Femur
    • Insertion: Fibula head
    • Action: Knee flexion, hip extension

Lower Limb Muscles: Ankle and Foot

  • Gastrocnemius:

    • Origin: Femur
    • Insertion: Calcaneal (Achilles) tendon
    • Action: Plantar flexion
  • Soleus:

    • Origin: Tibia, fibula
    • Insertion: Calcaneal tendon
    • Action: Plantar flexion
  • Tibialis Anterior:

    • Origin: Tibia
    • Insertion: Foot
    • Action: Dorsiflexion
  • Tibialis Posterior:

    • Origin: Femur, Tibia
    • Insertion: Foot
    • Action: Inversion, plantar flexion and support the medial arch of the foot
  • Peroneus Longus:

    • Origin: Femur, Tibia
    • Insertion: Foot
    • Action: Eversion, plantar flexion and support the lateral arch of the foot

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