The obturator externus muscle covers the outer surface of the pelvis. The muscle is flat and fan-shaped. It lies deep in the medial compartment of the thigh (the inner thigh) and is only visible when ...

An obturator is a curved rod that fits inside the tracheal cannula, which is a tube inserted into the trachea during tracheostomy. Tracheostomy is a surgical procedure that creates an opening in the ...