The rationale, technique, and an example of full utilization of the jejunomesenteric free flap have been described as a means of reconstructing complex wounds of the head and neck. Not only jejunum, but also well-vascularized mesentery will protect vascular structures and intestinal anastomoses and, in addition, accept a skin graft. No additional muscular or other flaps are necessary to achieve these ends. Finally, no additional donor-site morbidity is incurred by harvesting the supplementary mesentery.