As many important nerves emerge from the posterior border of sternocleidomastoid (SCM). it is important to know the morphological anatomy of sternocleidomastoid for surgical as well as radiological purpose. During routine dissection of head and neck for student demonstration. an accessory head of sternocleidomastoid was found arising from the superior surface of the middle third of th... https://www.pomyslnaszycie.com/