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WHAT MUSCLE ALLOWS A PERSON TO SMILE?
The primary muscle responsible for smiling is the zygomaticus major. This muscle runs from the cheekbone to the corners of the mouth and lifts the corners upward when contracted. Additionally, the risorius muscle can assist in this action by pulling the mouth sideways. Together, these muscles create the facial expression associated with smiling.
What is the synergist to the smiling muscle?
The synergist to the smiling muscle (zygomaticus major) is the orbicularis oculi muscle, which is responsible for the contraction around the eyes and contributes to the overall expression of a smile.
What are the actions of the risorius?
The risorius is a facial muscle primarily responsible for drawing the corners of the mouth laterally, contributing to expressions of amusement or sarcasm. It helps create a wide smile or a smirk, enhancing facial expressions during social interactions. Additionally, the risorius assists in the movement of the cheeks, playing a role in oral functions like chewing and speaking. Overall, its actions are important for nonverbal communication.
What muscles do you use to smile?
It is primarily the zygomaticus major and risorius muscles that are responsible for a smile, aided in part by the action of the buccinator :)
What is the action and position of the frontails?
The position of the frontalis is over the frontal bone or the forehead. This muscle works with the occipitalis which is over the occipital bone in the back of the head. It's action is to elevate the eyebrows.
Position of muscles?
There are approximately 642 skeletal muscles within the typical human, and almost refers to the action of each muscle from the standard anatomical position.
What kind of stability is needed to hold a set joint position against resisitance for an isometric muscle action?
Static Stability
What muscle is used to close the lips?
mentralis buccula
What muscle that counteracts the action of another muscle?
antagonist muscle
What describes the action of the digastric muscle?
THe action of the digastric muscle is to depress the mandible or evaluate the larynx
What action takes the most muscle in the face?
The frowning action.
In a muscle group the muscle that relaxes during a particular action is what?
gdg
