A stylet assembly for performing a nasal endotracheal intubation of a patient is disclosed. The stylet assembly includes an elongated tube as a stylet for the intubation defining a longitudinal axis, a proximal end, and a distal end for entering the trachea of the patient. The elongated tube includes (i) a rigid section adjacent the proximal end, (ii) an articulation section adjacent the distal end and adapted to curve into the patient's trachea upon actuation, and (iii) a flexible section between the rigid section and the articulation section, the flexible section being adapted to curve to an internal shape of at least one of the patient's nose, nasal cavity, pharynx, and larynx during nasal intubation. The stylet assembly can further include an actuator housing, a control wire for actuating the articulating section, and a hand grip for maneuvering the stylet assembly.