Background: The most common branching pattern observed is separate origination of three branches springing from the arch of aorta: the brachiocephalic trunk, left common carotid artery and left subclavian artery. Knowledge of anatomical variations in the origin of brachiocephalic trunk and left common carotid artery from the arch of aorta are important in avoiding surgical and accidental injuries during aortic instrumentation, thoracic and neck surgeries.

Background: Tibial nerve is the largest branch of the sciatic nerve. From the back of thigh the tibial nerve passes vertically downward along the middle line of popliteal fossa. In the lower part of the fossa it is overlapped by the two heads of gastrocnemius and enters the posterior crural region accompanied by the posterior tibial vessels under cover of the tendinous origin of soleus muscle. The study was done to find the motor branching pattern of the tibial nerve.