The ________ tightens the neck and draws the corners of the mouth downward as in expressing horror.

Question

Quizplus · Accepted Answer

The platysma is a thin, sheet-like muscle that covers the front of the neck. It is responsible for pulling down the corners of the mouth and tightening the neck, which can create an expression of horror or disgust. The sternohyoid and sternocleidomastoid muscles are also involved in neck movements, but they do not control the mouth. The mentalis muscle is located in the chin and is responsible for controlling the movement of the lower lip.

The ________ Tightens the Neck and Draws the Corners of the Mouth