Anatomy relevant to dentistry 2 Suprahyoid muscle
Anatomy relevant to dentistry 2
for opening mandible
Attached to the body of the mandible which connects to the hyoid bone (just above the larynx)
Four main groups.
Each group is a pair
This group is responsible for closing the
mandible and aids in chewing
Trismus is a condition caused by spasm
of the muscles of mastication
Each muscle has
an origin and an insertion
The origin is where the muscle
is attached to the skull
The insertion is where the muscle
extends to the mandible
A square shaped muscle that pulls mandible upwards and forwards.
, clenching and grinding.
border of zygomatic arch
surface of the ramus
A fan shaped muscle that retrudes and protrudes mandible.
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Human head and neck