Zygomaticus Minor, Gross Anatomy

Description

Arising from the zygomatic bone near the zygomaticomaxillary region, the zygomaticus minor runs inferomedially across the cheek to blend with the musculature of the upper lip at the lateral aspect of the orbicularis oris. In this male head and neck study, it sits medial and slightly superior to the zygomaticus major, with the levator labii superioris positioned more medial along the side of the nose and the orbicularis oculi encircling the orbit superiorly. Superficial masticatory landmarks, including the masseter over the ramus of the mandible and the temporalis in the temporal fossa, frame the midface, while the sternocleidomastoid marks the anterolateral neck. Fiber direction is clear. That matters. Isolating the zygomaticus minor helps you teach the functional separation between upper lip elevation and oral commissure retraction, a distinction often blurred when learners lump “smile muscles” together. This muscle is a practical landmark in midface approaches and soft-tissue reconstruction, where preserving small mimetic slips reduces postoperative asymmetry and unwanted upper lip distortion; it also provides context for iatrogenic weakness after facial nerve (zygomatic and buccal branches) injury or edema. The semitransparent cranial backdrop anchors these relationships to the zygomatic origin and maxillary contour that drive surface anatomy. Use this artwork in gross anatomy and head and neck courses to contrast zygomaticus minor with zygomaticus major, levator labii superioris, and orbicularis oris during modules on facial expression and facial nerve function. It also fits well in surgical atlases and patient-facing education for midface lifting, perioral reconstruction, and facial palsy documentation where a clean muscular map improves communication. Anatomical accuracy verified by SciePro's Medical Advisory Board.