Lecture Notes - Anterior & Medial Thigh

The streaming video of the 2004-5 lab overview is available on the web (password protected). The computer presentation used by Dr. Gest in lecture is available on the web (password protected). You can also download the PowerPoint presentation to print or review.

Osteology:

• Ilium
  
  • Anterior superior iliac spine - for inguinal ligament & sartorius m.
    
  • Anterior inferior iliac spine - for rectus femoris m.
    
  • Iliac tubercle - attachment of iliotibial tract
    
• Ischium - tuberosity, ramus, (ischiopubic ramus)
  
• Pubis - inferior pubic ramus, body & pecten
  
• Femur
  • Medial & lateral epicondyles
  • Lesser trochanter - for iliopsoas m.
  • Pectineal line - posterior femur inferolateral to lesser trochanter
  • Linea aspera - for adductor muscles
  • Adductor tubercle - for hamstring part of adductor magnus
• Patella - largest sesamoid bone
• Tibia
  • Medial malleolus - medial ankle
• Fibula
  • Lateral malleolus - lateral ankle

Muscles:

• Iliopsoas - to lesser trochanter
  
• Anterior thigh:
  • Sartorius - roof of adductor canal; to pes anserinus on med. condyle of tibia
  • Quadriceps femoris - rectus femoris & 3 vasti
    • Rectus femoris - crosses hip & knee
    • Vastus medialis, intermedius, & lateralis
    • Patellar ligament (tendon) & retinacula
• Medial thigh:
  • Pectineus - innervated by femoral n.
    
  • Gracilis - to pes anserinus
    
  • Adductor longus - anterior-most adductor; floor of adductor canal
    
  • Adductor brevis - between longus & magnus
    
  • Adductor magnus
    • Adductor tendon - ischiocondylar part
    • Adductor hiatus
  • (Obturator externus - deep to adductor magnus origin; will see later)

Femoral triangle:

• Boundaries - inguinal lig., sartorius & add. longus
  
• Muscular & vascular lacunae - under ing. lig.
  
• Contents:
  • Femoral nerve brs.
  • Femoral sheath - transversalis fascia
    • Contents - femoral a,v & lymphatics
    • Femoral canal - med. compartment of femoral sheath; contains deep inguinal node(s)
    • Femoral ring - internal opening of femoral canal; may have deep ing. node (node of Cloquet)
    • Femoral hernia

Adductor canal (subsartorial or Hunter's canal):

• At inferior point of femoral triangle
  
• Contents:
  • Femoral vessels
  • Nerve to vastus medialis
  • Saphenous n.
• Vastoadductor membrane - covers vessels in lower part of canal
  
• Adductor hiatus - femoral vessels pass through to become popliteal vessels

Arteries & Veins:

• Femoral (common femoral) - from ing. lig. to adductor hiatus
  • Deep femoral - between add. longus & brevis
    • Medial circumflex femoral - between iliopsoas & pectineus
    • Lateral circumflex femoral - deep to rectus femoris
    • Perforating brs. (4) - supply hamstrings (post. thigh)
  • Descending genicular artery
• Obturator - adductor origins & hip joint

Nerves:

• Femoral - for anterior thigh
  • Nerve to vastus medialis - within adductor canal
  • Saphenous nerve
• Obturator - for medial thigh; ant. & post. divisions surround adductor brevis

Deep inguinal lymph nodes

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