Podcast
Questions and Answers
Which muscle is responsible for depressing the angle of the mouth?
Which muscle is responsible for depressing the angle of the mouth?
What is the name of the muscle that is responsible for elevating the upper lip?
What is the name of the muscle that is responsible for elevating the upper lip?
Which muscle is responsible for depressing the lower lip?
Which muscle is responsible for depressing the lower lip?
What is the name of the muscle that is responsible for puckering the lips?
What is the name of the muscle that is responsible for puckering the lips?
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Which muscle is responsible for elevating the angle of the mouth?
Which muscle is responsible for elevating the angle of the mouth?
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What is the insertion point of the deltoid and pectoralis major fascia?
What is the insertion point of the deltoid and pectoralis major fascia?
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What is the path followed by the deltoid and pectoralis major fascia around the eye?
What is the path followed by the deltoid and pectoralis major fascia around the eye?
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What is the structure where the skin of the eyebrow is connected?
What is the structure where the skin of the eyebrow is connected?
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What is the anatomical location where the skin is at an angle?
What is the anatomical location where the skin is at an angle?
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What is the location of the fibers of orbicularis oris?
What is the location of the fibers of orbicularis oris?
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What is the commonality among the structures mentioned?
What is the commonality among the structures mentioned?
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What is the main characteristic of the skin at the angles of the mouth?
What is the main characteristic of the skin at the angles of the mouth?
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What is the relationship between the skin at the corner of the mouth and the skin at the angles of the mouth?
What is the relationship between the skin at the corner of the mouth and the skin at the angles of the mouth?
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What is the location of the skin that is closely related to the orbicularis oris fibers?
What is the location of the skin that is closely related to the orbicularis oris fibers?
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What is the characteristic of the skin of the lower lip?
What is the characteristic of the skin of the lower lip?
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What is the action of the muscle that draws the scalp anteriorly and posteriorly?
What is the action of the muscle that draws the scalp anteriorly and posteriorly?
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Which part of the face is not directly related to the listed actions?
Which part of the face is not directly related to the listed actions?
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What is the action of the muscle that draws the eyebrows infer?
What is the action of the muscle that draws the eyebrows infer?
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Which facial feature is mentioned as being drawn anteriorly and posteriorly?
Which facial feature is mentioned as being drawn anteriorly and posteriorly?
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What is the action of the muscle that moves the mandible?
What is the action of the muscle that moves the mandible?
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What is the action of the frontalis muscle?
What is the action of the frontalis muscle?
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Which action is responsible for opening the mouth?
Which action is responsible for opening the mouth?
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What is the effect of the procerus muscle on the nose?
What is the effect of the procerus muscle on the nose?
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What is the relationship between the frontalis muscle and the epicranial aponeurosis?
What is the relationship between the frontalis muscle and the epicranial aponeurosis?
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What is the action of the muscle that draws the angle of the mouth inferiorly?
What is the action of the muscle that draws the angle of the mouth inferiorly?
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Study Notes
Fascia and Insertion Points
- Deltoid and Pectoralis major fascia are insertion points for certain muscles.
Facial Muscles and Their Actions
- Epicranial aponeurosis is inserted by the Frontalis muscle.
- The Risorius muscle inserts into the skin at the angles of the mouth.
- The Buccinator muscle inserts into the skin of the cheek and angles of the mouth.
- The Orbicularis oris muscle inserts into the skin at the corners of the mouth and lower lip.
- The Levator labii superioris muscle inserts into the upper lip.
- The Levator anguli oris muscle inserts into the skin at the angles of the mouth.
- The Depressor labii inferioris muscle inserts into the lower lip.
- The Depressor anguli oris muscle inserts into the skin at the angles of the mouth.
- The Mentalis muscle inserts into the skin of the chin.
Muscle Actions
- The Frontalis muscle and epicranial aponeurosis draw the scalp anteriorly and posteriorly.
- The Procerus muscle draws the eyebrows inferiorly.
- The Orbicularis oris muscle draws the angle of the mouth inferiorly.
- The Mentalis muscle elevates the skin of the chin upwards, as in eating, and depresses the mandible.
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Description
Test your knowledge of the muscles responsible for facial expressions. This quiz covers the buccinator, risorius, orbicularis oris, and more. Identify the functions and locations of these essential muscles.
