ABSTRACT
This chapter is intended to cover the anatomical knowledge of lower limb that helps trainee anesthetists who are revising for the Primary and Final FRCA exams. The topics of importance to anesthetists are presented under 'structures', 'circulation' and 'nervous system'. The chapter includes a wide range of questions of clinical relevance that are asked in the exam. The popliteal fossa is a diamond-shaped area posterior to the knee joint. This is the site for popliteal nerve block for providing analgesia for procedures performed in the lower leg. The femoral triangle is a hollow area in the anterior thigh providing relatively easy access to the femoral neurovascular bundle. The main blood supply to the lower limb is by the femoral artery, which is the continuation of the external iliac artery. The femoral artery continues as the popliteal artery in the lower leg. The lumbar plexus is a network of nerve fibers that provide motor and sensory innervation to the lower limb.
