Fig. 5From: Kunafa knife and play dough is an efficient and cheap simulator to teach diagnostic Point-of-Care Ultrasound (POCUS)The handle of the Kunafa knife is passed through the hole in the lid of the box and then the students can observe the outcome of the longitudinal sections (a) and transverse sections (b) of different structures, the aorta (red), and inferior vena cava (blue) as shown in this exampleBack to article page