Trismus in parapharyngeal abscess is caused by spasm of which of the following muscle?
Parapharyngeal space - It is pyramidal in shape . base at base of skull and apex at hyoid bone Its divided into two components anterior & posterior. The trismus is seen in the anterior compament parapharyngeal abscess and it is due to spasm of the medial pterygoid muscle.
FMGE 2018
Medial pterygoid
Lateral pterygoid
Masseter
Temporalis
Medial pterygoid