Podcast
Questions and Answers
Which nerve supplies cutaneous innervation to the face, except for the posterior scalp and everything posterior/inferior to the mandible?
Which nerve supplies cutaneous innervation to the face, except for the posterior scalp and everything posterior/inferior to the mandible?
What type of fibers does the trigeminal nerve (CN V) have?
What type of fibers does the trigeminal nerve (CN V) have?
sensory (GSA) and motor (GSE) fibers
The motor innervation of the face is primarily supplied by the facial nerve (CN VII) and the ______ nerve (CN V3).
The motor innervation of the face is primarily supplied by the facial nerve (CN VII) and the ______ nerve (CN V3).
trigeminal
Bell's Palsy is characterized by the paralysis of the trigeminal nerve (CN V).
Bell's Palsy is characterized by the paralysis of the trigeminal nerve (CN V).
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What can cause trigeminal neuralgia?
What can cause trigeminal neuralgia?
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Which nerve supplies the cutaneous innervation of the face (except for posterior scalp and everything posterior/inferior to mandible)?
Which nerve supplies the cutaneous innervation of the face (except for posterior scalp and everything posterior/inferior to mandible)?
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Which division of the trigeminal nerve (CN V) is sensory and motor, responsible for muscles of mastication and tensor twins?
Which division of the trigeminal nerve (CN V) is sensory and motor, responsible for muscles of mastication and tensor twins?
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Which nerve supplies the motor innervation of the face for muscles of facial expression?
Which nerve supplies the motor innervation of the face for muscles of facial expression?
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What is the condition characterized by paralysis of CN VII?
What is the condition characterized by paralysis of CN VII?
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What is the condition that results from the compression of CN V, causing extreme pain especially with chewing or brushing teeth?
What is the condition that results from the compression of CN V, causing extreme pain especially with chewing or brushing teeth?
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Which cranial nerve is responsible for the motor innervation of the muscles of facial expression?
Which cranial nerve is responsible for the motor innervation of the muscles of facial expression?
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Where does the trigeminal nerve (CN V) originate from?
Where does the trigeminal nerve (CN V) originate from?
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The facial artery may be hard to find during a pulse examination on the face and scalp due to its ____
The facial artery may be hard to find during a pulse examination on the face and scalp due to its ____
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Bell's Palsy is characterized by paralysis of the trigeminal nerve (CN V).
Bell's Palsy is characterized by paralysis of the trigeminal nerve (CN V).
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Which nerve supplies sensory and motor fibers to the face?
Which nerve supplies sensory and motor fibers to the face?
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Name the three divisions of the trigeminal nerve (CN V).
Name the three divisions of the trigeminal nerve (CN V).
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The __ nerve serves as a major highway system for other fiber types.
The __ nerve serves as a major highway system for other fiber types.
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Bell's Palsy is characterized by the paralysis of the glossopharyngeal nerve.
Bell's Palsy is characterized by the paralysis of the glossopharyngeal nerve.
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Match the following facial nerve branches with their names:
Match the following facial nerve branches with their names:
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Which cranial nerve is responsible for supplying cutaneous innervation to the face?
Which cranial nerve is responsible for supplying cutaneous innervation to the face?
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Which division of the trigeminal nerve is responsible for sensory and motor functions, including muscles of mastication?
Which division of the trigeminal nerve is responsible for sensory and motor functions, including muscles of mastication?
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The __________ nerve arises from the pons and supplies motor innervation to the face for muscles of facial expression.
The __________ nerve arises from the pons and supplies motor innervation to the face for muscles of facial expression.
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Bell's Palsy is characterized by the paralysis of the trigeminal nerve (CN V).
Bell's Palsy is characterized by the paralysis of the trigeminal nerve (CN V).
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Which cranial nerve supplies the cutaneous innervation of the face except for the posterior scalp and everything posterior/inferior to the mandible?
Which cranial nerve supplies the cutaneous innervation of the face except for the posterior scalp and everything posterior/inferior to the mandible?
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Which division of the trigeminal nerve (CN V) supplies sensory and motor fibers for muscles of mastication and tensor twins?
Which division of the trigeminal nerve (CN V) supplies sensory and motor fibers for muscles of mastication and tensor twins?
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The motor innervation of the face is supplied by trigeminal nerve (CN V).
The motor innervation of the face is supplied by trigeminal nerve (CN V).
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Tensor is responsible for opening and closing the Eustachian tube.
Tensor is responsible for opening and closing the Eustachian tube.
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Match the facial nerve branches with their names:
Match the facial nerve branches with their names:
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What is the condition characterized by the paralysis of CN VII?
What is the condition characterized by the paralysis of CN VII?
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What can cause trigeminal neuralgia?
What can cause trigeminal neuralgia?
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Which artery can be hard to find but is associated with the face?
Which artery can be hard to find but is associated with the face?
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Which cranial nerve is responsible for the motor innervation of the face?
Which cranial nerve is responsible for the motor innervation of the face?
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What are the names of the branches given off by the facial nerve (CN VII) to the face?
What are the names of the branches given off by the facial nerve (CN VII) to the face?
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Bell's Palsy is characterized by the paralysis of cranial nerve _?
Bell's Palsy is characterized by the paralysis of cranial nerve _?
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Trigeminal neuralgia can be caused by tumors compressing the trigeminal nerve (CN V).
Trigeminal neuralgia can be caused by tumors compressing the trigeminal nerve (CN V).
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Study Notes
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
Scalp and Face
- Cutaneous innervation of the scalp is supplied by the trigeminal nerve (CN V), except for the posterior scalp and areas posterior/inferior to the mandible.
- Trigeminal nerve (CN V) has both sensory (GSA) and motor (GSE) fibers and originates from the pons.
Facial Muscles
- Facial muscles include muscles of facial expression (innervated by CN VII) and muscles of mastication (innervated by CN V3).
- Muscles of mastication include:
- Masseter m.
- Temporalis m.
- Medial and lateral pterygoid mm.
- Tensor twins, innervated by CN V3, include:
- Tensor veli palatini m. (opens and closes the Eustachian tube)
- Tensor tympani m. (tenses the tympanic membrane to dampen sound)
Facial Nerve
- Motor innervation of the face is supplied by the facial nerve (CN VII) and trigeminal nerve (CN V3).
- Facial nerve (CN VII) originates from the pons and has GSE fibers and parasympathetic (GVE) fibers.
- CN VII forms the parotid plexus in the parotid gland and gives off 5 branches:
- Temporal branch of CN VII
- Zygomatic branch of CN VII
- Buccal branch of CN VII
- Marginal branch of CN VII
- Cervical branch of CN VII
Arteries of Face
- Most arteries of the face branch off from the external carotid artery.
Lymphatics of Face and Scalp
- No specific details mentioned.
Clinical Correlations
- Bell's Palsy: paralysis of CN VII due to inflammation, often caused by herpes simplex, other viral causes, pregnancy, or idiopathic factors.
- Trigeminal neuralgia: compression of CN V, often caused by aberrant artery, tumor, cyst, MS, or brain lesions, resulting in extreme pain triggered by chewing, brushing teeth, etc.
Pulses of Face and Scalp
- Superficial temporal artery is a palpable pulse.
- Facial artery is also present, but can be hard to find.
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Description
This quiz covers the anatomy of the face and scalp, including facial muscles and nerve functions, specifically the trigeminal nerve and its divisions. It's designed for PA program students at Mercy College of Ohio.
