- May 2, 2026The levator labii superioris elevates the upper lip and dilates the nostril. Its nasolabial deepening action creates the expression of…
- May 2, 2026The masseter is the most powerful jaw closing muscle, generating bite forces of 700-800 N at the molar teeth. Its…
- May 2, 2026The digastric is a two-bellied suprahyoid muscle with different embryological origins and nerve supplies for each belly. The posterior belly…
- May 2, 2026The mylohyoid forms the muscular floor of the oral cavity, separating the sublingual space above from the submandibular space below.…
- May 2, 2026The superior pharyngeal constrictor forms the muscular wall of the nasopharynx and oropharynx, contracting sequentially during the pharyngeal phase of…
- May 2, 2026The middle pharyngeal constrictor forms the oropharyngeal muscular wall, with its fibres overlapping both the superior and inferior constrictors to…
- May 2, 2026The semispinalis capitis is the largest and most superficial posterior cervical muscle, forming the bulk of the posterior neck. The…
- May 2, 2026The splenius capitis is the superficial posterior cervical muscle running diagonally from the nuchal ligament to the mastoid, acting as…
- May 2, 2026The temporalis fills the temporal fossa and inserts on the coronoid process as a broad fan-shaped muscle. Its posterior fibres…
- May 2, 2026The temporoparietalis is the thin muscular layer of the temporoparietal fascia (SMAS extension) spanning from the temporal fascia to the…