Podcast
Questions and Answers
Which muscle is responsible for lifting the eyelid?
Which muscle is responsible for lifting the eyelid?
- Occipitofrontalis
- Levator palpebrae superioris (correct)
- Orbicularis oculi
- Superior oblique
What structures would be affected by an inferior alveolar nerve block?
What structures would be affected by an inferior alveolar nerve block?
- External ear
- Mandibular teeth (correct)
- Dura
- Maxillary teeth
What nerves pass through the back-most fossa?
What nerves pass through the back-most fossa?
- Glossopharyngeal and vagus nerves
- Trigeminal and facial nerves (correct)
- Olfactory and optic nerves
- Hypoglossal and accessory nerves
What would be the result of a tumor compressing the back-most fossa?
What would be the result of a tumor compressing the back-most fossa?
Which muscle is responsible for raising the eyebrow?
Which muscle is responsible for raising the eyebrow?
What is the email address of the lecturer?
What is the email address of the lecturer?
What is the joining code for the presentation at slido.com?
What is the joining code for the presentation at slido.com?
Which cranial nerve provides special sensory innervation to the anterior third of the tongue?
Which cranial nerve provides special sensory innervation to the anterior third of the tongue?
Which cranial nerve provides special sensory innervation to the posterior third of the tongue?
Which cranial nerve provides special sensory innervation to the posterior third of the tongue?
Which cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
Which cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
Which cranial nerve provides motor innervation to the palatoglossus muscle?
Which cranial nerve provides motor innervation to the palatoglossus muscle?
Which cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
Which cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
Which cranial nerve provides motor innervation to the stylopharyngeus muscle?
Which cranial nerve provides motor innervation to the stylopharyngeus muscle?
Which cranial nerve provides motor innervation to the parotid gland?
Which cranial nerve provides motor innervation to the parotid gland?
Which of the following is NOT a section of the pharynx?
Which of the following is NOT a section of the pharynx?
Which nerve is responsible for innervating the muscles of the pharynx and larynx?
Which nerve is responsible for innervating the muscles of the pharynx and larynx?
Which muscle forms the boundary between the submental and submandibular triangles?
Which muscle forms the boundary between the submental and submandibular triangles?
Which of the following structures is NOT contained within the carotid sheath?
Which of the following structures is NOT contained within the carotid sheath?
In which of the anterior triangles in the neck could swelling of lymph nodes be palpated?
In which of the anterior triangles in the neck could swelling of lymph nodes be palpated?
Which of the following is NOT a component of the posterior compartment of the neck?
Which of the following is NOT a component of the posterior compartment of the neck?
Which roots of the cervical plexus lie anterior to the levator scapulae muscle?
Which roots of the cervical plexus lie anterior to the levator scapulae muscle?
Which of the following arteries supplies blood to the face?
Which of the following arteries supplies blood to the face?
Which vein drains the scalp, face, and neck?
Which vein drains the scalp, face, and neck?
Which cranial nerve is responsible for motor supply to the sternocleidomastoid and trapezius muscles?
Which cranial nerve is responsible for motor supply to the sternocleidomastoid and trapezius muscles?
Do veins in the head and neck have valves?
Do veins in the head and neck have valves?
Which book is ideal for diagrams and explanations?
Which book is ideal for diagrams and explanations?
What is the name of the hole in the back-most fossa?
What is the name of the hole in the back-most fossa?
What passes through the Internal Acoustic Meatus?
What passes through the Internal Acoustic Meatus?
If a tumor were to compress the Internal Acoustic Meatus, what symptoms might occur?
If a tumor were to compress the Internal Acoustic Meatus, what symptoms might occur?
What does the Accessory Nerve allow for?
What does the Accessory Nerve allow for?
Which nerve is responsible for innervating the muscles of facial expression?
Which nerve is responsible for innervating the muscles of facial expression?
Which muscle is responsible for elevating the labial commissure, or corner of the mouth?
Which muscle is responsible for elevating the labial commissure, or corner of the mouth?
Which muscle is responsible for compressing the cheeks?
Which muscle is responsible for compressing the cheeks?
Which nerve is responsible for the motor innervation of the muscles of mastication?
Which nerve is responsible for the motor innervation of the muscles of mastication?
Which cranial nerve provides motor innervation to the muscles of mastication?
Which cranial nerve provides motor innervation to the muscles of mastication?
What is the function of the conchae in the nasal cavity?
What is the function of the conchae in the nasal cavity?
Which nerve exits through the foramen ovale and provides sensory innervation to the lower face?
Which nerve exits through the foramen ovale and provides sensory innervation to the lower face?
What determines the aesthetic appearance of the face?
What determines the aesthetic appearance of the face?
Which nerve provides sensory supply to the areas around the temple?
Which nerve provides sensory supply to the areas around the temple?
Which nerve is responsible for motor innervation of the muscles of facial expression?
Which nerve is responsible for motor innervation of the muscles of facial expression?
Which nerve exits via the superior orbital fissure and provides sensory supply to the eye area?
Which nerve exits via the superior orbital fissure and provides sensory supply to the eye area?
Which nerve exits via the foramen ovale and provides sensory supply to the mandible and chin?
Which nerve exits via the foramen ovale and provides sensory supply to the mandible and chin?
What is the primary factor that determines how a person looks after receiving a skin and muscle transplant from a donor?
What is the primary factor that determines how a person looks after receiving a skin and muscle transplant from a donor?
What percentage of communication is believed to be nonverbal?
What percentage of communication is believed to be nonverbal?
Which facial muscles are responsible for conveying mood and adding expression to speech?
Which facial muscles are responsible for conveying mood and adding expression to speech?
What is the function of the orbicularis oculi muscle?
What is the function of the orbicularis oculi muscle?
Which nerve provides sensory innervation to the cornea and skin around the front of the head?
Which nerve provides sensory innervation to the cornea and skin around the front of the head?
Which nerve is responsible for the colonial blink reflex?
Which nerve is responsible for the colonial blink reflex?
Which nerve provides sensory supply to the lower portion of the face and motor supply to the muscles of mastication?
Which nerve provides sensory supply to the lower portion of the face and motor supply to the muscles of mastication?
Which muscles help to elevate the mandible?
Which muscles help to elevate the mandible?
Which cranial nerve provides special sensory innervation to the posterior third of the tongue?
Which cranial nerve provides special sensory innervation to the posterior third of the tongue?
What structures would be affected by an inferior alveolar nerve block?
What structures would be affected by an inferior alveolar nerve block?
Which cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
Which cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
Which cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
Which cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
Which muscles help with elevation and side to side chewing as well as protrusion and depression?
Which muscles help with elevation and side to side chewing as well as protrusion and depression?
What is the term for moving the jaw forward?
What is the term for moving the jaw forward?
Which nerve supplies the muscles involved in jaw movements?
Which nerve supplies the muscles involved in jaw movements?
What are the medial terror guide and lateral tour guide muscles supplied by?
What are the medial terror guide and lateral tour guide muscles supplied by?
What are the medial terror guide and lateral tour guide muscles responsible for?
What are the medial terror guide and lateral tour guide muscles responsible for?
What are the movements involved in protrusion and retraction of the jaw?
What are the movements involved in protrusion and retraction of the jaw?
Flashcards
Levator palpebrae superioris muscle
Levator palpebrae superioris muscle
Muscle responsible for lifting the upper eyelid.
What structures are affected by an inferior alveolar nerve block?
What structures are affected by an inferior alveolar nerve block?
The lower teeth, periodontal ligaments, gingiva, and skin of the chin are all affected by this block.
Which nerves pass through the posterior cranial fossa?
Which nerves pass through the posterior cranial fossa?
The glossopharyngeal, vagus, accessory, and hypoglossal nerves.
What are the symptoms of a tumor in the posterior cranial fossa?
What are the symptoms of a tumor in the posterior cranial fossa?
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Which muscle raises the eyebrow?
Which muscle raises the eyebrow?
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What nerves provide special sensory innervation to the tongue?
What nerves provide special sensory innervation to the tongue?
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What nerves provide motor innervation to the tongue?
What nerves provide motor innervation to the tongue?
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What are the sections of the pharynx?
What are the sections of the pharynx?
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What nerve innervates the muscles of the pharynx and larynx?
What nerve innervates the muscles of the pharynx and larynx?
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What muscle forms the boundary between the submental and submandibular triangles?
What muscle forms the boundary between the submental and submandibular triangles?
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What structures are NOT contained within the carotid sheath?
What structures are NOT contained within the carotid sheath?
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Where can swelling of lymph nodes be palpated in the neck?
Where can swelling of lymph nodes be palpated in the neck?
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What structures are NOT part of the posterior compartment of the neck?
What structures are NOT part of the posterior compartment of the neck?
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Which roots of the cervical plexus lie anterior to the levator scapulae muscle?
Which roots of the cervical plexus lie anterior to the levator scapulae muscle?
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What artery supplies blood to the face?
What artery supplies blood to the face?
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What vein drains the scalp, face, and neck?
What vein drains the scalp, face, and neck?
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What cranial nerve innervates the sternocleidomastoid and trapezius muscles?
What cranial nerve innervates the sternocleidomastoid and trapezius muscles?
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Do veins in the head and neck have valves?
Do veins in the head and neck have valves?
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What anatomical reference book is ideal for diagrams and explanations?
What anatomical reference book is ideal for diagrams and explanations?
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What hole is located in the posterior cranial fossa?
What hole is located in the posterior cranial fossa?
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What structures pass through the internal acoustic meatus?
What structures pass through the internal acoustic meatus?
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What are the symptoms of a tumor compressing the internal acoustic meatus?
What are the symptoms of a tumor compressing the internal acoustic meatus?
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What is the function of the accessory nerve (CN XI)?
What is the function of the accessory nerve (CN XI)?
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What nerve innervates the muscles of facial expression?
What nerve innervates the muscles of facial expression?
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Which muscle elevates the labial commissure?
Which muscle elevates the labial commissure?
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What muscle compresses the cheeks?
What muscle compresses the cheeks?
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What nerve provides motor innervation to the muscles of mastication?
What nerve provides motor innervation to the muscles of mastication?
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What is the function of the conchae in the nasal cavity?
What is the function of the conchae in the nasal cavity?
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What nerve exits through the foramen ovale and provides sensory innervation to the lower face?
What nerve exits through the foramen ovale and provides sensory innervation to the lower face?
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What factor determines the aesthetic appearance of the face?
What factor determines the aesthetic appearance of the face?
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What nerve provides sensory supply to the areas around the temple?
What nerve provides sensory supply to the areas around the temple?
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What nerve is responsible for motor innervation of the muscles of facial expression?
What nerve is responsible for motor innervation of the muscles of facial expression?
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What nerve exits via the superior orbital fissure and provides sensory supply to the eye area?
What nerve exits via the superior orbital fissure and provides sensory supply to the eye area?
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What nerve exits via the foramen ovale and provides sensory supply to the mandible and chin?
What nerve exits via the foramen ovale and provides sensory supply to the mandible and chin?
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What primary factor determines how a person looks after receiving a skin and muscle transplant?
What primary factor determines how a person looks after receiving a skin and muscle transplant?
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What percentage of communication is believed to be nonverbal?
What percentage of communication is believed to be nonverbal?
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What facial muscles are responsible for conveying mood and adding expression to speech?
What facial muscles are responsible for conveying mood and adding expression to speech?
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What is the function of the orbicularis oculi muscle?
What is the function of the orbicularis oculi muscle?
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What nerve provides sensory innervation to the cornea and skin around the front of the head?
What nerve provides sensory innervation to the cornea and skin around the front of the head?
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What nerve is responsible for the blink reflex?
What nerve is responsible for the blink reflex?
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What nerve provides sensory supply to the lower portion of the face and motor supply to the muscles of mastication?
What nerve provides sensory supply to the lower portion of the face and motor supply to the muscles of mastication?
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What muscles help to elevate the mandible?
What muscles help to elevate the mandible?
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What cranial nerve provides special sensory innervation to the posterior third of the tongue?
What cranial nerve provides special sensory innervation to the posterior third of the tongue?
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What structures are affected by an inferior alveolar nerve block?
What structures are affected by an inferior alveolar nerve block?
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What cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
What cranial nerve provides motor innervation to the intrinsic and extrinsic muscles of the tongue?
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What cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
What cranial nerve exits via the jugular foramen and provides sensory innervation to the posterior one-third of the tongue and oropharynx?
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What muscles help with elevation, side-to-side chewing, protrusion, and depression of the jaw?
What muscles help with elevation, side-to-side chewing, protrusion, and depression of the jaw?
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What is the term for moving the jaw forward?
What is the term for moving the jaw forward?
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What nerve supplies the muscles involved in jaw movements?
What nerve supplies the muscles involved in jaw movements?
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What nerve supplies the medial and lateral pterygoid muscles?
What nerve supplies the medial and lateral pterygoid muscles?
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What are the functions of the medial and lateral pterygoid muscles?
What are the functions of the medial and lateral pterygoid muscles?
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Describe the movements involved in protrusion and retraction of the jaw.
Describe the movements involved in protrusion and retraction of the jaw.
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Study Notes
Eyelid Muscles
- Levator palpebrae superioris muscle is responsible for lifting the eyelid.
Inferior Alveolar Nerve Block
- Structures affected by an inferior alveolar nerve block:
- Mandible: Lower teeth
- Periodontal ligaments: Connective tissues surrounding the teeth
- Gingiva: Gums of the lower teeth
- Skin of the chin: Sensory innervation to the chin area
Posterior Fossa
-
Nerves passing through the back-most fossa (posterior cranial fossa):
- Glossopharyngeal Nerve (CN IX)
- Vagus Nerve (CN X)
- Accessory Nerve (CN XI)
- Hypoglossal Nerve (CN XII)
-
Tumor compressing the back-most fossa (posterior cranial fossa):
- Symptoms:
- Dysphagia: Difficulty swallowing
- Dysphonia: Difficulty speaking
- Hoarseness: Loss of voice
- Loss of taste sensation: Posterior one-third of the tongue
- Muscle weakness: Neck and shoulder muscles
- Symptoms:
Eyebrow Muscles
- Frontalis muscle is responsible for raising the eyebrow.
Tongue Innervation
-
Special sensory innervation:
- Anterior two-thirds of the tongue: Facial nerve (CN VII)
- Posterior one-third of the tongue: Glossopharyngeal nerve (CN IX)
-
Motor innervation:
- Intrinsic and extrinsic muscles of the tongue: Hypoglossal nerve (CN XII)
- Palatoglossus muscle: Vagus nerve (CN X)
Pharynx
-
Sections of the pharynx:
- Nasopharynx: Top portion
- Oropharyns: Middle portion
- Laryngopharynx: Lower portion
-
Nerve responsible for innervation of the muscles of the pharynx and larynx: Vagus nerve (CN X)
Anterior Triangle of the Neck
- Muscle forming the boundary between the submental and submandibular triangles: Mylohyoid muscle
Carotid Sheath
- Structures NOT contained within the carotid sheath:
- Phrenic Nerve
- Vagus Nerve
- Brachial Plexus
Neck Triangles and Lymph Nodes
- Anterior triangle of the neck: Swelling of lymph nodes can be palpated in this area.
Posterior Triangle of the Neck
- Components NOT of the posterior compartment of the neck:
- Sternocleidomastoid
- Trapezius
- Scalene Muscles
Cervical Plexus
- Roots of the cervical plexus lying anterior to the levator scapulae muscle: C3, C4, C5
Facial Arteries and Veins
-
Artery supplying blood to the face: Facial Artery
-
Vein draining the scalp, face, and neck: External Jugular Vein
Cranial Nerve XI
- Cranial nerve responsible for motor supply to the sternocleidomastoid and trapezius muscles: Accessory nerve (CN XI)
Neck Veins
- Veins in the head and neck: Do NOT have valves
Anatomical Reference Book
- Book ideal for diagrams and explanations: Gray's Anatomy
Posterior Fossa Details
-
Hole in the back-most fossa (posterior cranial fossa): Internal Acoustic Meatus
-
Structures passing through the Internal Acoustic Meatus:
- Facial Nerve (CN VII)
- Vestibulocochlear Nerve (CN VIII)
-
Tumor compressing the Internal Acoustic Meatus:
- Symptoms:
- Hearing loss
- Tinnitus
- Facial paralysis
- Symptoms:
Accessory Nerve Function
- Accessory nerve (CN XI): Allows for movement of the head and shoulders, neck rotation, and shoulder elevation
Facial Expression Muscles
-
Nerve responsible for innervating the muscles of facial expression: Facial nerve (CN VII)
-
Muscle responsible for elevating the labial commissure: Levator labii superioris muscle
-
Muscle responsible for compressing the cheeks: Buccinator muscle
Mastication Muscles
-
Nerve responsible for motor innervation of the muscles of mastication: Trigeminal nerve (CN V)
-
Cranial nerve providing motor innervation to the muscles of mastication: Trigeminal nerve (CN V)
Nasal Conchae
- Conchae in the nasal cavity: Increases the surface area of the nasal cavity, warms and humidifies incoming air
Maxillary Nerve
- Nerve exiting through the foramen ovale and providing sensory innervation to the lower face: Maxillary nerve (CN V2)
Facial Aesthetics
- Factor determining the aesthetic appearance of the face: Underlying bony structure
Temporal Nerve
- Nerve providing sensory supply to the areas around the temple: Temporal nerve (CN V3)
Facial Nerve
- Nerve responsible for motor innervation of the muscles of facial expression: Facial nerve (CN VII)
Orbital Fissure
- Nerve exiting via the superior orbital fissure and providing sensory supply to the eye area: Ophthalmic nerve (CN V1)
Foramen Ovale
- Nerve exiting via the foramen ovale and providing sensory supply to the mandible and chin: Mandibular nerve (CN V3)
Skin and Muscle Transplants
- Primary factor determining how a person looks after receiving a skin and muscle transplant: Genetics of the donor, not the recipient
Nonverbal Communication
- Percentage of communication believed to be nonverbal: 70-93%
Facial Expression
- Facial muscles responsible for conveying mood and adding expression to speech:
- Orbicularis oculi: Closes the eyes
- Zygomaticus major: Raises the corners of the mouth
- Levator labii superioris: Elevates the upper lip
- Depressor anguli oris: Lowers the corners of the mouth
- Mentalis: Protrudes the lower lip
Orbicularis Oculi Muscle Function
- Orbicularis oculi muscle: Closes the eyelids, helps to protect the eye from foreign bodies, and assists in tear drainage
Cornea and Skin Innervation
- Nerve providing sensory innervation to the cornea and skin around the front of the head: Ophthalmic nerve (CN V1)
Blink Reflex
- Nerve responsible for the blink reflex: Facial nerve (CN VII)
Mandibular Nerve
- Nerve providing sensory supply to the lower portion of the face and motor supply to the muscles of mastication: Mandibular nerve (CN V3)
Muscles Elevating the Mandible
- Muscles helping to elevate the mandible:
- Masseter
- Temporalis
- Medial pterygoid
Senses of the Tongue
- Cranial nerve providing special sensory innervation to the posterior third of the tongue: Glossopharyngeal nerve (CN IX)
Inferior Alveolar Nerve Block
- Structures affected by an inferior alveolar nerve block:
- Mandible: Lower teeth
- Periodontal ligaments: Connective tissues surrounding the teeth
- Gingiva: Gums of the lower teeth
- Skin of the chin: Sensory innervation to the chin area
Tongue Muscles Innervation
- Cranial nerve providing motor innervation to the intrinsic and extrinsic muscles of the tongue: Hypoglossal nerve (CN XII)
Posterior Tongue and Oropharynx Innervation
- Cranial nerve exiting via the jugular foramen and providing sensory innervation to the posterior one-third of the tongue and oropharynx: Glossopharyngeal nerve (CN IX)
Jaw Movements
-
Muscles helping with elevation and side-to-side chewing as well as protrusion and depression:
- Masseter
- Temporalis
- Medial pterygoid
- Lateral pterygoid
-
Term for moving the jaw forward: Protrusion
-
Nerve supplying the muscles involved in jaw movements: Trigeminal nerve (CN V)
-
Medial and lateral pterygoid muscles supplied by: Mandibular nerve (CN V3)
-
Medial and lateral pterygoid muscles responsible for:
- Elevation of the mandible: Medial pterygoid
- Protrusion of the mandible: Lateral pterygoid
- Side-to-side chewing (lateral excursion): Lateral pterygoid
-
Movements involved in protrusion and retraction of the jaw:
- Protrusion: Lateral pterygoid muscles pull the mandible forward
- Retraction: Temporalis and masseter muscles pull the mandible backward
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Description
Test your knowledge of the arterial supply to the pharynx and the innervation of its muscles. Learn about the three sections of the pharynx and the cranial nerves involved.
