Anatomy Bones and Muscles · MU Pleven

234. Regio genus.

Covers the boundaries of the thigh, from the inguinal fold and gluteal sulcus down to the circular line above the patella, and how the fascia lata divides it into anterior, posterior and medial compartments with their nerves and vessels. It then goes through the anterior region's skin, fascia, cutaneous nerves and saphenous opening, the femoral triangle and iliopectineal fossa, and the adductor canal, before describing the posterior region's skin, nerves, veins and hamstring arrangement. Picture labels and a clinical note on the femoral triangle and infection spread are included.

Inside: 5 sections · 5 labelled pictures · 7 flashcards · 8 min

Topic 233 of 236 in the MU Pleven syllabus for Anatomy Bones and Muscles (Medicine, Year 2). The free AceMed note covers it in 5 sections, about 1,092 words (8 min of reading), with 7 flashcards.

In this note

  1. THIGH Region
  2. Boundaries :
  3. Divisions :
  4. Anterior Region of the thigh.
  5. Posterior thigh Region :

Boundaries :

  1. Upper Boundary:
  • Plica inguinalis (inguinal fold): Separates the thigh from the abdominal wall.
  • Sulcus glutealis: Separates the thigh from the gluteal region.
  1. Lower Boundary:
  • Circular line: Approximately two fingers' width proximal to the upper border of the patella.

Divisions :

  • Fascia lata (deep fascia), completely envelops the muscles of thigh.
  • Gives 3 intermuscular septa penetrate btw. muscle groups, } divide the thigh into:
  1. 1. Ant. Region
  2. 2. Post. Region
  3. 3. Medial. Region.
  4. 1 Anterior compartment of thigh (compartimentum femoris anterius)
  • contains the anterior group of thigh muscles
  1. 1.1 Femoral nerve – branches in the iliopectineal fossa
  2. 1.1.1 Saphenous nerve – the terminal branch of the femoral nerve
  • travels with the femoral artery and vein through the adductor canal
  • reaches the subcutaneous tissue after passing through the vasto-adductor membrane
  1. 1.2 Femoral artery – – gives off most of its branches within the iliopectineal fossa
  • travels through the adductor canal and adductor hiatus to reach the popliteal fossa
  1. 1.2.1 Profunda femoris artery (deep artery of thigh)
  • runs between the muscles of the medial thigh
  1. 1.3 Femoral vein – the continuation of the popliteal vein after passing through the adductor hiatus
  • passes through the adductor canal
  • joins the profunda femoris vein in the iliopectineal fossa to form the common femoral vein, which receives the great saphenous vein
  1. 1.3.1 Great saphenous vein – runs in the subcutaneous tissue on the medial side of the thigh
  1. 2 Posterior compartment of thigh (compartimentum femoris posterius)
  • contains the posterior group of thigh muscles
  1. 2.1 Sciatic nerve – courses between the posterior thigh muscles to reach the popliteal fossa, where it bifurcates (in most cases)
  2. 2.2 Posterior cutaneous nerve of thigh
  • runs in the subcutaneous tissue (in the distal part it runs with the cranial extension of the small saphenous vein)
  1. 3 Medial compartment of thigh (compartimentum femoris mediale)
  • contains the medial group of thigh muscles
  1. 3.1 Obturator nerve, artery and veins
  • supply the proximal part of the medial side of the thigh

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