66-year-old woman is unable to open her mouth or jaw because of tetanus resulting from a penetrating wound from a rusty nail. Which of the following muscles would most likely be paralyzed?
Lateral pterygoid muscle opens the mouth by depressing the jaw. Masseter, medial pterygoid, and temporalis muscles close the jaw. Buccinator muscle is a muscle of facial expression.
A
B
C
D
Neuroanatomy, Head and Neck