You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Trismus is due to spasm of which of the following muscle (FMGE Dec 2018) and explain in detail?
M - Medial pterygoid - inseed to ramus of mandible from inner side T - Temporalis - inseed into coronoid process of mandible M -Masseter-- inseed to ramus of mandible from outside Lateral pterygoid - depressor of mandible - pull mandible antero-inferiorly and open the mouth Antagonize (MTM muscles) *Tetanus neonatorum - spasm of masseter *Trismus - spasm of muscles of mastication especially medial pterygoid muscle. Mentalis: Deepest muscle of lower group arising from mandible just inferior to incisor teeth, with fibers passing downward & medially to inse into skin of chin. It raises & protrudes lower lip as it wrinkles skin of chin Help position lip when drinking from cup / when pouting Buccinator: Compresses cheek against teeth & is used in acts like blowing