Muscles of Facial Expression Quiz
43 Questions
0 Views

Muscles of Facial Expression Quiz

Created by
@FineLookingAquamarine248

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary function of the muscles of facial expression?

  • To aid in respiration
  • To assist in digestion
  • To show emotions and expressions (correct)
  • To stabilize the skull

    • What is the common nerve that innervates all facial muscles?

  • Trigeminal nerve
  • Facial nerve (correct)
  • Vagus nerve
  • Optic nerve

    • Which of the following muscles has its origin from bone or fascia and inserts into the skin?

  • Sternocleidomastoid
  • Muscles of facial expression (correct)
  • Temporalis muscle
  • Biceps brachii

    • Which of these functions is NOT typically associated with facial expression muscles?

    <p>Breathing</p> Signup and view all the answers

    Which area does NOT contain any facial expression muscles?

    <p>Hands</p> Signup and view all the answers

    What blood supply primarily serves the muscles of facial expression?

    <p>Facial artery</p> Signup and view all the answers

    Which of the following is NOT a subgroup where facial muscles are situated?

    <p>Legs</p> Signup and view all the answers

    What common activity tests the functionality of the facial expression muscles?

    <p>Pulling funny faces</p> Signup and view all the answers

    What is the primary action of the Orbicularis Oris muscle?

    <p>Protrude the lips</p> Signup and view all the answers

    Which artery supplies blood to the Zygomaticus Major muscle?

    <p>Facial artery</p> Signup and view all the answers

    From which origin does the Levator Labii Superioris muscle arise?

    <p>Lower rim of orbit</p> Signup and view all the answers

    What is the main nerve supply for the Depressor Labii Inferioris muscle?

    <p>Mandibular branch</p> Signup and view all the answers

    Which of the following muscles elevates the upper lip?

    <p>Zygomaticus Minor</p> Signup and view all the answers

    What is the insertion point of the Zygomaticus Major muscle?

    <p>Angle of the mouth</p> Signup and view all the answers

    Which blood supply is common to the Levator Labii Superioris and Depressor Labii Inferioris muscles?

    <p>Facial artery</p> Signup and view all the answers

    What is the action of the Zygomaticus Minor muscle?

    <p>Elevates the upper lip</p> Signup and view all the answers

    Which branch of the facial nerve supplies the Zygomaticus Major muscle?

    <p>Buccal branch</p> Signup and view all the answers

    Which muscle is responsible for depressing the lower lip?

    <p>Depressor Labii Inferioris</p> Signup and view all the answers

    What is the action of the Compressor Naris muscle?

    <p>Closes the nostrils</p> Signup and view all the answers

    Which muscle is responsible for pulling the ear slightly forward?

    <p>Anterior Auricular</p> Signup and view all the answers

    Which nerve supplies all three muscles acting on the external ear?

    <p>Facial nerve</p> Signup and view all the answers

    What is the blood supply for the Anterior Auricular muscle?

    <p>Posterior auricular artery</p> Signup and view all the answers

    What condition is commonly associated with issues in facial muscle functionality?

    <p>Bell's Palsy</p> Signup and view all the answers

    Which muscle is responsible for elevating the corners of the mouth?

    <p>Levator Anguli Oris</p> Signup and view all the answers

    What is the primary nerve supply for the Buccinator muscle?

    <p>Buccal branch of the facial nerve</p> Signup and view all the answers

    What action does the Mentalis muscle perform?

    <p>Puckers the chin</p> Signup and view all the answers

    Which artery primarily supplies blood to the Risorius muscle?

    <p>Facial artery</p> Signup and view all the answers

    What is the action of the Platysma muscle?

    <p>Pulls down corners of the mouth</p> Signup and view all the answers

    Which muscle assists in mastication while working in opposition with the tongue?

    <p>Buccinator</p> Signup and view all the answers

    What is the function of the Orbicularis Oris muscle?

    <p>Controls movements of the mouth</p> Signup and view all the answers

    From which origin does the Depressor Anguli Oris muscle arise?

    <p>Angle of the mandible</p> Signup and view all the answers

    Which branch of the facial nerve innervates the frontalis part of the occipitofrontalis muscle?

    <p>Temporal branch</p> Signup and view all the answers

    Which muscle is also associated with facial expression and pulls the scalp up and back?

    <p>Occipitalis</p> Signup and view all the answers

    What shape does the orbital muscle have?

    <p>Horseshoe</p> Signup and view all the answers

    Which artery is primarily responsible for the blood supply of the corrugator muscle?

    <p>Superficial temporal artery</p> Signup and view all the answers

    What is the action of the palpebrae muscle?

    <p>Closes the eyes forcefully</p> Signup and view all the answers

    Where does the procerus muscle insert?

    <p>Medial end of the eyebrows</p> Signup and view all the answers

    Which facial nerve branch supplies the corrugator muscle?

    <p>Temporal branch</p> Signup and view all the answers

    What is the main action of the nasalis muscle?

    <p>Opens the nostrils</p> Signup and view all the answers

    What is the origin point of the dilator naris?

    <p>Nasal margin of the maxilla</p> Signup and view all the answers

    Which action is performed by the corrugator muscle?

    <p>Pulls eyebrows medially</p> Signup and view all the answers

    Which artery supplies blood to the procerus muscle?

    <p>Facial artery</p> Signup and view all the answers

    What is the main function of the compressor naris?

    <p>Closes the nostrils</p> Signup and view all the answers

    Study Notes

    Muscles of Facial Expression

    • Origin: Most facial muscles originate from bone or fascia and insert into the skin.
    • Innervation: They're all innervated by the facial nerve.
    • Blood Supply: The facial artery provides blood supply.
    • Function: Facial muscles are responsible for expressions and are also important for speech and chewing (mastication).

    Facial Muscle Subgroups

    • Muscles of facial expression can be divided into subgroups based on location:
      • Mouth
      • Scalp
      • Neck
      • Eyes
      • Nose
      • Ears

    Mouth Muscles

    • Orbicularis Oris:
      • Origin: Anterior nasal spine and midline above the chin.
      • Insertion: Interlacing fibers with muscles around the lips.
      • Action: Closes and opens the mouth, compresses lips, protrudes lips.
      • Nerve Supply: Facial nerve, buccal branch.
      • Blood Supply: Facial, maxillary, and superficial temporal arteries.
    • Levator Labii Superioris:
      • Origin: Lower rim of orbit.
      • Insertion: Orbicularis Oris fibers at the upper lip.
      • Action: Elevates the upper lip.
      • Nerve Supply: Facial nerve, zygomatic, and buccal branches.
      • Blood Supply: Facial and maxillary arteries.
    • Depressor Labii Inferioris:
      • Origin: Below the oblique line of the mandible.
      • Insertion: Orbicularis Oris in the lower lip.
      • Action: Depresses the lower lip
      • Nerve Supply: Facial nerve, mandibular branch.
      • Blood Supply: Facial and maxillary arteries.
    • Zygomaticus Minor:
      • Origin: Zygomatic arch.
      • Insertion: Orbicularis Oris.
      • Action: Elevates the upper lip.
      • Nerve Supply: Facial nerve, buccal, and zygomatic branches.
      • Blood Supply: Facial artery.
    • Zygomaticus Major:
      • Origin: Zygomatic arch.
      • Insertion: Blends with Orbicularis Oris at the angle of the mouth.
      • Action: Elevates the corners of the mouth (e.g., during laughter).
      • Nerve Supply: Facial nerve, buccal, and zygomatic branches.
      • Blood Supply: Facial artery.
    • Levator Anguli Oris:
      • Origin: Canine fossa of the maxilla, below the infra-orbital foramen.
      • Insertion: Orbicularis Oris at the corner of the mouth.
      • Action: Elevates the corner of the mouth.
      • Nerve Supply: Facial nerve, buccal, and zygomatic branch.
      • Blood Supply: Facial and maxillary arteries.
    • Depressor Anguli Oris:
      • Origin: Beneath the angle of the mandible.
      • Insertion: Converges into the angles of the mouth and blends with Orbicularis Oris.
      • Action: Depresses the corner of the mouth.
      • Nerve Supply: Facial nerve, buccal, and mandibular branches.
      • Blood Supply: Facial and maxillary arteries.
    • Mentalis:
      • Origin: Anterior surface of mandible (incisive fossa).
      • Insertion: Skin covering the chin.
      • Action: Puckers/pulls up the skin of the chin, helps Orbicularis Oris clear food from the labial sulcus.
      • Nerve Supply: Facial nerve, mandibular branch.
      • Blood Supply: Facial and maxillary arteries.
    • Buccinator:
      • Origin: Pterygomandibular raphae and buccal alveolar bone (in maxillary and mandibular molar regions).
      • Insertion: Blends with the Orbicularis Oris at the corners of the mouth.
      • Action: Pulls corner of the mouth back, compresses cheek against buccal surfaces of molars, aids in mastication.
      • Nerve Supply: Facial nerve, buccal branch.
      • Blood Supply: Facial and maxillary arteries.
    • Risorius:
      • Origin: Angle of the mandible.
      • Insertion: Corner of the mouth.
      • Action: Retracts the angle of the mouth, assists in smiling.
      • Nerve Supply: Facial nerve, buccal branch.
      • Blood Supply: Facial artery.

    Scalp Muscles

    • Occipitofrontalis:
      • Composed of three parts: frontalis, occipitalis, and galea aponeurotica.
      • The frontalis is involved in facial expression.
      • Origin: Connective tissue of the scalp.
      • Insertion: Skin of the frontal regions of the eyebrows.
      • Action: Pulls scalp up and back, elevates eyebrows, wrinkles scalp.
      • Nerve Supply: Facial nerve, temporal branch.
      • Blood Supply: Superficial temporal and ophthalmic arteries

    Neck Muscles

    • Platysma:
      • Origin: Clavicle and shoulder.
      • Insertion: Lower border of mandible, skin, and muscle of the lower face and mouth.
      • Action: Pulls down corners of the mouth (grimace), wrinkles skin of chin and neck.
      • Nerve Supply: Facial nerve, cervical branch.
      • Blood Supply: Facial artery and thyrocervical trunk.

    Eye Muscles

    • Orbicularis Oculi:
      • Has two parts: orbital and palpebrae.
        • Orbital:
          • Origin: Bone of the upper medial orbital margin.
          • Action: Closes the eye forcefully.
        • Palpebrae:
          • Origin: Medial palpebral ligament.
          • Action: Closes eyes gently (blinking).
      • Nerve Supply: Facial nerve, zygomatic, and temporal branches.
      • Blood Supply: Superficial temporal, facial, and maxillary arteries.
    • Corrugator:
      • Origin: Bridge of the nose.
      • Insertion: Skin of the lateral part of the eyebrow.
      • Action: Pulls eyebrows medially (frown).
      • Nerve Supply: Facial nerve, temporal branch.
      • Blood Supply: Superficial temporal artery.
    • Procerus:
      • Origin: Bridge of the nose.
      • Insertion: Medial end of the eyebrows.
      • Action: Pulls eyebrows down (frown), wrinkles the nose.
      • Nerve Supply: Facial nerve, zygomatic branch.
      • Blood Supply: Facial artery

    Nose Muscles

    • Nasalis:
      • Composed of two parts: Dilator Naris and Compressor Naris
      • Nerve Supply: Facial nerve, buccal branches
      • Blood Supply: Facial artery
      • Dilator Naris:
        • Origin: The nasal margin of the maxilla.
        • Insertion: Skin of the nostril.
        • Action: Flares the nostrils.
      • Compressor Naris:
        • Origin: The top of the maxillary canine ridge.
        • Insertion: Midline over the nasal cartilage.
        • Action: Closes the nostrils.

    Ear Muscles

    • Anterior Auricular:
      • Origin: Scalp and temporal fascia.
      • Insertion: Anterior medial aspect of the helix of the ear
      • Action: Pulls the ear slightly forward.
      • Nerve Supply: Facial nerve, temporal branch.
      • Blood Supply: Posterior auricular artery.
    • Superior Auricular:
      • Origin: Scalp and temporal fascia.
      • Insertion: Superior medial aspect of the ear.
      • Action: Raises the ear.
      • Nerve Supply: Facial nerve, temporal branch.
      • Blood Supply: Posterior auricular artery.
    • Posterior Auricular:
      • Origin: Superior lateral aspect of the mastoid process.
      • Insertion: Inferior medial aspect of the auricle of the ear.
      • Action: Pulls the ear back.
      • Nerve Supply: Facial nerve, temporal branch
      • Blood Supply: Posterior auricular artery.

    Conditions Affecting Facial Muscles

    • Conditions impacting facial muscle function include Bell's Palsy, stroke, and surgery.
    • These conditions can affect facial expressions and the delivery of dental treatment.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Related Documents

    Muscles of Facial Expression PDF

    Description

    Test your knowledge on the muscles of facial expression, their origins, innervations, and functions. This quiz will cover various subgroups of these muscles, including those around the mouth, eyes, and scalp. Perfect for students studying anatomy or anyone looking to refresh their knowledge.

    More Like This

    Muscles of Facial Expressions Flashcards
    20 questions

    Muscles of Facial Expressions Flashcards

    WellConnectedComputerArt avatar
    WellConnectedComputerArt
    Muscles of Facial Expressions Quiz
    5 questions

    Muscles of Facial Expressions Quiz

    SociablePrologue avatar
    SociablePrologue
    Muscles of Facial Expression Quiz
    43 questions

    Muscles of Facial Expression Quiz

    WiseTropicalIsland4758 avatar
    WiseTropicalIsland4758
    Facial Expression Muscles Overview
    31 questions

    Facial Expression Muscles Overview

    HandierMemphis avatar
    HandierMemphis
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser