Platysma
Platysma
Definition
The platysma is a well-developed muscular sheet in carnivores and pigs, which radiates into the facial cutaneous muscle.
Origin: mid-dorsal tendinous raphe of the neck and the skin
Insertion: commissural portion of the lips
Action: draw the commissure of the lips caudally
Nerve: buccal branches and the caudal auricular nerve from the facial nerve
References
Text by Antoine Micheau, MD - Copyright IMAIOS
Veterinary Anatomy of Domestic Mammals: Textbook and Colour Atlas, Sixth Edition - Horst Erich König, Hans-Georg Liebich - Schattauer - ISBN-13: 978-3794528332
Miller's Anatomy of the Dog, 4th Edition - Evans & de Lahunta- Elsevier
