All the following muscles are attached to the posterior pa of lateral surface of mastoid process except
The sternocleidomastoid, splenius capitis, and longissimus capitis are inseed in that order from before backwards on the posterior pa of the lateral surface of the mastoid processPosterior belly of digastric arises from the mastoid notch.Reference: Chourasia; 6th edition; 13th page
Posterior belly of Digastric muscle
Sternocleidomastoid
Splenius capitus
Longissimus capitis
Head and neck