Fig. 2From: Ultrasound-guided identification of the cricothyroid membrane in a patient with a difficult airway: a case reportUltrasound-guided identification of the cricothyroid membrane This is a cross-sectional view of the cervical ultrasound image. The red arrow shows the cricothyroid membrane. The cricothyroid membrane could not be identified by palpation, but was identified on ultrasoundBack to article page