gross anatomical study to the blood supply of the sciatic nerve in human

Identifying the blood supply to the peripheral nerves is important in understanding the pathology of different types of neuropathy, and in selecting the suitable nerves for vascularized nerve grafts. This work was undertaken to study the sources and distribution of the blood supply to the sciatic nerve. Twelve cadavers [10 fresh that included 8 adults and 2 stillborns, and 2 preserved cadavers] were used in the present study. The blood vessels supplying the sciatic nerves were traced to identify their sources and also, the outer sheaths of the dissected sciatic nerves were reflected to study the arrangement and distribution of the feeding blood vessels. The results showed that the inferior gluteal artery gave a branch that divided into an ascending and descending branches to the sciatic nerve. The sciatic nerve also received nutrient branches from the perforators of the profunda femoris artery and from the surrounding muscles. The popliteal artery gave a nutrient artery that ran through the sciatic nerve proximally. All the feeding vessels gave side branches in the outer sheath of the sciatic nerve forming one or two layers of arterial arcades in the epineurium. The outer sheath of the nerve with the arterial arcades inside it formed a mesentery-like structure. The ascending and descending branches of the feeding blood vessels formed a continuous tortuous central artery inside the sciatic nerve. In conclusion, the sciatic nerve received nutrient branches from the inferior gluteal, the perforators of the profunda femoris, the popliteal arteries and from the surrounding muscles. These branches ran in a mesentery-like structure and formed a central tortuous artery

What dose the patient want to know about his Anaesthesia and surgery?

The aim of the current study was to determine what the patients at King Abdul-Aziz University Hospital [KAUH] want to know before their anesthesia and surgery and to establish some order of priority on these information. A questionnaire was developed from 10 pieces of information, each developed into a statement. A short introduction about the demographics was asked at the beginning of each questionnaire. The patients showed a huge desire to know about all of the information concerning their procedure. However, the three statements with the highest percentage of importance to know were meeting their surgeons before operations, knowing all the common possible complications of their operations and meeting the anesthesiologists before the operations, in that order