Lecture on Lower Limb Model by Professor McCurdy

Introduction

• Focus on the proximal end of the lower limb model.

Anterior Muscles

Iliac Region

• Iliacus: Located within the iliac fascia, continues behind the inguinal ligament.
• Psoas Major: Originates from the lumbar vertebrae.

Gluteal Region

• Gluteus Maximus: Partially damaged in the model.
• Gluteus Medius: Visible with some thoracolumbar fascia.

Anterior Superior Iliac Spine

• Tensor Fasciae Latae: Shorter, lateral muscle.
• Sartorius: Longest muscle in the body, runs medial to the anterior superior iliac spine.

Quadriceps Group

• Consists of four muscles sharing a common tendon (quadriceps tendon) inserting into the patella:
  • Rectus Femoris: Straight muscle, responsible for leg straightening.
  • Vastus Lateralis: Located laterally, meaning large.
  • Vastus Medialis: Located medially.
  • Vastus Intermedius: Found behind the rectus femoris.

Posterior Muscles

Hamstrings

• Biceps Femoris: Located on the lateral side.
• Semitendinosus: Paired with semimembranosus, located medially.
• Semimembranosus: Underneath semitendinosus.

Medial Compartment Muscles

• Pectineus: Adjacent to femoral artery and vein, attached to the pubis.
• Adductor Longus: Medial thigh muscle.
• Gracilis: On top of adductor longus and adductor magnus.
• Adductor Magnus: Larger muscle in the medial compartment.

Lower Leg Muscles

Anterior Side

• Tibialis Anterior: Located anterior to the tibia.
• Extensor Digitorum Longus: Tendons split to all digits.

Lateral Side

• Fibularis Longus: Located on the fibular side.
• Fibularis Brevis: Located on the fibular side.

Posterior Side (Calf Muscles)

• Gastrocnemius: Upper part of the calf.
• Soleus: Deep to the gastrocnemius.
• Both muscles insert into the calcaneal tendon attaching to the calcaneus, involved in plantar flexion.

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These notes cover all the muscles visible on the lower limb model as discussed by Professor McCurdy.