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Questions and Answers
The muscles of facial expression attach only to the bones of the face.
The muscles of facial expression attach only to the bones of the face.
False (B)
The facial nerve supplies all the muscles of the face.
The facial nerve supplies all the muscles of the face.
True (A)
The temporalis muscle is considered a muscle of facial expression.
The temporalis muscle is considered a muscle of facial expression.
False (B)
The orbicularis oris muscle is important for compressing the lips during articulation.
The orbicularis oris muscle is important for compressing the lips during articulation.
The buccinator muscle is responsible compressing the vestibule of the mouth, pushing the cheek against the teeth.
The buccinator muscle is responsible compressing the vestibule of the mouth, pushing the cheek against the teeth.
The buccinator muscle is pierced by the parotid gland duct.
The buccinator muscle is pierced by the parotid gland duct.
The orbicularis oculi muscle is innervated by the oculomotor nerve.
The orbicularis oculi muscle is innervated by the oculomotor nerve.
The orbital part of the orbicularis oculi causes a light closure of the eyelids.
The orbital part of the orbicularis oculi causes a light closure of the eyelids.
The lacrimal part of the orbicularis oculi assists in draining tears.
The lacrimal part of the orbicularis oculi assists in draining tears.
The facial nerve is purely a sensory nerve, providing sensation to the face.
The facial nerve is purely a sensory nerve, providing sensation to the face.
The facial artery originates from the internal carotid artery in the neck.
The facial artery originates from the internal carotid artery in the neck.
The facial artery has a direct branch called the lateral nasal branch.
The facial artery has a direct branch called the lateral nasal branch.
The facial artery terminates into the mental artery at the medial corner of the eye.
The facial artery terminates into the mental artery at the medial corner of the eye.
The pulsation of the external carotid artery can be palpated anterior to the masseter muscle.
The pulsation of the external carotid artery can be palpated anterior to the masseter muscle.
The facial artery follows a straight linear path along the face.
The facial artery follows a straight linear path along the face.
The angular artery is a branch of the maxillary artery.
The angular artery is a branch of the maxillary artery.
The facial vein drains directly into the internal jugular vein.
The facial vein drains directly into the internal jugular vein.
The anterior facial vein begins as a continuation of the superficial temporal vein.
The anterior facial vein begins as a continuation of the superficial temporal vein.
The retromandibular vein unites with the posterior auricular vein to form the external jugular vein.
The retromandibular vein unites with the posterior auricular vein to form the external jugular vein.
The deep facial vein connects to the cavernous sinus in the brain.
The deep facial vein connects to the cavernous sinus in the brain.
The external jugular vein is formed by the union of the anterior facial and maxillary veins.
The external jugular vein is formed by the union of the anterior facial and maxillary veins.
The external jugular vein is the only tributary of the subclavian vein.
The external jugular vein is the only tributary of the subclavian vein.
Sensory innervation of the face is provided by branches of the trigeminal nerve.
Sensory innervation of the face is provided by branches of the trigeminal nerve.
The facial nerve provides sensory innervation to the skin of the face.
The facial nerve provides sensory innervation to the skin of the face.
The facial nerve exits the skull through the foramen ovale.
The facial nerve exits the skull through the foramen ovale.
The temporal branch of the facial nerve supplies the frontalis muscle.
The temporal branch of the facial nerve supplies the frontalis muscle.
The ophthalmic nerve supplies the infraorbital region.
The ophthalmic nerve supplies the infraorbital region.
The Ophthalmic division of the trigeminal nerve does not supply sensation to external regions of the nose.
The Ophthalmic division of the trigeminal nerve does not supply sensation to external regions of the nose.
The area covering the angle of the mandible is supplied by the great auricular nerve.
The area covering the angle of the mandible is supplied by the great auricular nerve.
The buccal nerve is a branch of the facial nerve, responsible for sensory innervation of the cheek.
The buccal nerve is a branch of the facial nerve, responsible for sensory innervation of the cheek.
The masseter muscle is innervated by the facial nerve.
The masseter muscle is innervated by the facial nerve.
The parotid gland is innervated by the same nerve that innervates the muscles of facial expression.
The parotid gland is innervated by the same nerve that innervates the muscles of facial expression.
The zygomatic branch of the facial nerve controls muscles around the lips and mouth.
The zygomatic branch of the facial nerve controls muscles around the lips and mouth.
There are typically less than 15 muscles of facial expression.
There are typically less than 15 muscles of facial expression.
The risorius muscle is utilized during smiling.
The risorius muscle is utilized during smiling.
The mentalis muscle elevates the lower lip.
The mentalis muscle elevates the lower lip.
The levator labii superioris alaeque nasi is responsible for elevating the upper lip.
The levator labii superioris alaeque nasi is responsible for elevating the upper lip.
Superficial temporal vein is a direct branch to the superior ophthalmic vein.
Superficial temporal vein is a direct branch to the superior ophthalmic vein.
The auriculotemporal nerve is part of the maxillary division of the trigeminal nerve.
The auriculotemporal nerve is part of the maxillary division of the trigeminal nerve.
The anterior and posterior deep temporal arteries stem directly from the facial artery.
The anterior and posterior deep temporal arteries stem directly from the facial artery.
Flashcards
Muscles of facial expression
Muscles of facial expression
Muscles attached to the bones and skin of the face that control facial expressions.
Orbicularis Oculi
Orbicularis Oculi
Muscle around the eye that closes the eyelids, protects the eye and drains tears.
Orbicularis Oris Function
Orbicularis Oris Function
Muscle that compresses the lips together and are very important during articulation.
Buccinator Function
Buccinator Function
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Facial Artery
Facial Artery
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Facial Artery Course
Facial Artery Course
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Facial Artery Branches in the Face
Facial Artery Branches in the Face
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Anterior Facial Vein
Anterior Facial Vein
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Posterior Facial Vein
Posterior Facial Vein
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Nerve Supply of the Face
Nerve Supply of the Face
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Trigeminal Nerve (Sensory)
Trigeminal Nerve (Sensory)
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Ophthalmic Division
Ophthalmic Division
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Maxillary Nerve
Maxillary Nerve
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Mandibular Nerve
Mandibular Nerve
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Study Notes
- The objectives are to study the muscles, nerve supply, arterial supply, and venous drainage of the face.
Facial Muscles
- More than 20 muscles are attached to the bones and skin
- These muscles are called muscles of facial expression
- The facial nerve supplies all the muscles of the face
Orbicularis Oculi
- Consists of orbital, palpebral, and lacrimal parts
- Orbital part action is forced closure of the eyelids
- Palpebral part action is light closure of eyelids or during sleep
- Lacrimal Part’s action dilates the lacrimal sac to drain tears
Orbicularis Oris
- Compresses the lips together and is very important during articulation
Buccinator
- Empties the vestibule of the mouth by compressing the cheek against the teeth
- It is an accessory muscle of mastication
- The duct of the parotid gland pierces it
- All facial muscles are supplied by the facial nerve
Facial Artery
- Originates from the external carotid artery in the neck
- Pulsations can be felt at the lower border of the mandible, just anterior to the masseter
- It runs upwards and medially in a tortuous course lateral to the angle of the mouth and along the lateral side of the nose
- Terminates as angular artery at the medial corner of the eye
- Branches include the inferior labial, superior labial, and lateral nasal
Venous Drainage
- Anterior and posterior facial veins provide venous drainage
Anterior Facial Vein
- It starts as a direct continuation of the angular vein at the medial angle of the eye
- It typically merges with the anterior branch of the retromandibular vein to create the common facial vein, which empties into the internal jugular vein
Posterior Facial Vein
- Begins behind the neck of the mandible where the union of the superficial temporal and the maxillary veins are inside the parotid gland
- It has anterior and posterior branches
- The anterior branch joins the anterior facial vein to form the common facial vein that drains into the internal jugular vein
- The posterior branch joins the posterior auricular vein to form the external jugular vein
External Jugular Vein
- It begins behind the angle of the mandible from the union of the posterior auricular vein and the posterior branch of the retromandibular vein
- It descends down in what is coined the posterior triangle
- Pierces the deep fascia one inch above the clavicle to terminate in the subclavian vein
- It is the only tributary of the subclavian vein
Nerve Supply
- Each half of the face has a motor and a sensory nerve supply
- Sensory: Branches of trigeminal nerve (5th cranial nerve)
- Motor: Branches of facial nerve (7th cranial nerve)
Trigeminal Nerve
- Transports sensations from the skin on the face, with the exception of the skin angle of the mandible, which is supplied by the great auricular nerve.
Facial Nerve
- The motor nerve supply to the face
- Branches are temporal, zygomatic, buccal, mandibular, and cervical
Ophthalmic Division
- Branches are supraorbital, supratrochlear, lacrimal, infratrochlear and external nasal
Maxillary Division
- Branches are Zygomaticotemporal, Zygomaticofacial and infraorbital
Mandibular Division
- Branches are Auriculo-temporal, buccal and mental
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