Podcast
Questions and Answers
What muscle raises the angle of the mouth in smiling and contributes to the depth and contour of the nasolabial furrow?
What muscle raises the angle of the mouth in smiling and contributes to the depth and contour of the nasolabial furrow?
- Orbicularis Oris
- Risorius (correct)
- Depressor Labii Inferioris
- Platysma
Which muscle pulls the corner of the mouth laterally in numerous facial activities, including grinning and laughing?
Which muscle pulls the corner of the mouth laterally in numerous facial activities, including grinning and laughing?
- Risorius
- Platysma
- Depressor Labii Inferioris (correct)
- Orbicularis Oris
Which muscle draws the lower lip downwards and a little laterally in masticatory activity?
Which muscle draws the lower lip downwards and a little laterally in masticatory activity?
- Orbicularis Oris
- Risorius
- Depressor Labii Inferioris (correct)
- Platysma
Which muscle contributes to the expressions of irony, sorrow, melancholy, and doubt?
Which muscle contributes to the expressions of irony, sorrow, melancholy, and doubt?
What is the vascular supply to the Depressor Labii Inferioris muscle?
What is the vascular supply to the Depressor Labii Inferioris muscle?
Which nerve supplies the Risorius muscle?
Which nerve supplies the Risorius muscle?
Where does the palpebral part of the orbicularis oculi muscle arise from?
Where does the palpebral part of the orbicularis oculi muscle arise from?
Which arteries supply the orbicularis oculi muscle?
Which arteries supply the orbicularis oculi muscle?
Where is the lacrimal part of the orbicularis oculi muscle located?
Where is the lacrimal part of the orbicularis oculi muscle located?
What role does the sphincter muscle of the eyelids (lacrimal part) play in?
What role does the sphincter muscle of the eyelids (lacrimal part) play in?
Which nerve supplies the orbicularis oculi muscle?
Which nerve supplies the orbicularis oculi muscle?
What is the usual activation control for the orbital portion of the orbicularis oculi muscle?
What is the usual activation control for the orbital portion of the orbicularis oculi muscle?
Which muscle surrounds the circumference of the orbit?
Which muscle surrounds the circumference of the orbit?
What does the temporoparietalis muscle lie between?
What does the temporoparietalis muscle lie between?
Where do the upper orbital fibers of orbicularis oculi blend with?
Where do the upper orbital fibers of orbicularis oculi blend with?
To what is the aponeurosis attached laterally?
To what is the aponeurosis attached laterally?
Which muscle is inserted into the skin and subcutaneous tissue of the eyebrow?
Which muscle is inserted into the skin and subcutaneous tissue of the eyebrow?
What allows the aponeurosis to move freely over the scalp?
What allows the aponeurosis to move freely over the scalp?
Where does Depressor Anguli Oris converge at the angle of the mouth?
Where does Depressor Anguli Oris converge at the angle of the mouth?
Which muscle is continuous below with Depressor Anguli Oris?
Which muscle is continuous below with Depressor Anguli Oris?
What is the vascular supply of Depressor Anguli Oris?
What is the vascular supply of Depressor Anguli Oris?
Which muscle consists of fibers that completely encircle the mouth?
Which muscle consists of fibers that completely encircle the mouth?
Where is Pars marginalis located within Orbicularis Oris?
Where is Pars marginalis located within Orbicularis Oris?
Which muscle may cross the midline to interlace with its contralateral fellows, forming the 'mental sling'?
Which muscle may cross the midline to interlace with its contralateral fellows, forming the 'mental sling'?
What is the main function of the Mentalis muscle?
What is the main function of the Mentalis muscle?
Which facial muscle is responsible for drawing the angle of the mouth downwards and laterally?
Which facial muscle is responsible for drawing the angle of the mouth downwards and laterally?
How is the mentolabial sulcus affected during the opening of the mouth?
How is the mentolabial sulcus affected during the opening of the mouth?
What is unique about the development of the Action buccal and mandibular branches of the facial nerve in human lips?
What is unique about the development of the Action buccal and mandibular branches of the facial nerve in human lips?
How many segments does the orbicularis oris muscle consist of?
How many segments does the orbicularis oris muscle consist of?
Where do some fibers of the orbicularis oris muscle originate from?
Where do some fibers of the orbicularis oris muscle originate from?
Flashcards
What muscle is responsible for smiling?
What muscle is responsible for smiling?
A muscle responsible for raising the angle of the mouth, contributing to the smile and nasolabial furrow depth.
Which muscle helps with grinning and laughing?
Which muscle helps with grinning and laughing?
A muscle that pulls the corner of the mouth sideways, involved in actions such as grinning and laughing.
What muscle helps with chewing and lip movement?
What muscle helps with chewing and lip movement?
This muscle draws the lower lip downward and slightly to the side, participating in chewing.
Which muscle helps express sorrow and doubt?
Which muscle helps express sorrow and doubt?
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What provides blood supply to the Depressor Labii Inferioris?
What provides blood supply to the Depressor Labii Inferioris?
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Which nerve controls the Risorius?
Which nerve controls the Risorius?
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Where does the palpebral part of the orbicularis oculi originate?
Where does the palpebral part of the orbicularis oculi originate?
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What supplies blood to the orbicularis oculi?
What supplies blood to the orbicularis oculi?
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Where is the lacrimal part of the orbicularis oculi located?
Where is the lacrimal part of the orbicularis oculi located?
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What is the role of the lacrimal part of orbicularis oculi?
What is the role of the lacrimal part of orbicularis oculi?
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Which nerves control the orbicularis oculi?
Which nerves control the orbicularis oculi?
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What controls the orbital part of the orbicularis oculi?
What controls the orbital part of the orbicularis oculi?
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Where is the orbicularis oculi muscle located?
Where is the orbicularis oculi muscle located?
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Where is the temporoparietalis muscle located?
Where is the temporoparietalis muscle located?
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What do the upper fibers of orbicularis oculi blend with?
What do the upper fibers of orbicularis oculi blend with?
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Where is the aponeurosis attached laterally?
Where is the aponeurosis attached laterally?
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Where does the orbicularis oculi insert?
Where does the orbicularis oculi insert?
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What allows the aponeurosis to move freely?
What allows the aponeurosis to move freely?
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Where does Depressor Anguli Oris converge?
Where does Depressor Anguli Oris converge?
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What muscle is continuous with Depressor Anguli Oris?
What muscle is continuous with Depressor Anguli Oris?
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What supplies blood to the Depressor Anguli Oris?
What supplies blood to the Depressor Anguli Oris?
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What muscle completely encircles the mouth?
What muscle completely encircles the mouth?
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Where is Pars marginalis located?
Where is Pars marginalis located?
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Which muscle might cross the midline?
Which muscle might cross the midline?
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What is the main function of the Mentalis muscle?
What is the main function of the Mentalis muscle?
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Which muscle pulls the angle of the mouth downwards?
Which muscle pulls the angle of the mouth downwards?
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What happens to the mentolabial sulcus during mouth opening?
What happens to the mentolabial sulcus during mouth opening?
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What is unique about the facial nerve branches?
What is unique about the facial nerve branches?
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How many segments does the orbicularis oris have?
How many segments does the orbicularis oris have?
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Where do some fibers of the orbicularis oris originate?
Where do some fibers of the orbicularis oris originate?
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