 CTY is a live saving procedure that involves an incision on the patient neck at a very precise location called Cricothyroid Membrane CTM. The current method of identifying this location is by palpation of neck cartilages by the operator. The incorrect identification of the CTM could lead to many complications. In certain patients such as obese or distorted neck features would make the identification of CTM difficult. Ultrasound US has improved the success rate of many anesthesia procedures .Its use has been described for identification of neck structures however, this technique of localization has not been validated against the gold standard which is the use of CT scan. The purpose of our study is to determine the precision of identifying the CTM using the US versus the conventional finger palpation when compared to the gold standard. 