Podcast
Questions and Answers
The optic nerve is CN I
The optic nerve is CN I
False (B)
List all twelve cranial nerves
List all twelve cranial nerves
Olfactory, optic, occulomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory and hypoglossal nerve
Select the cranial nerves that are Mixed nerves.
Select the cranial nerves that are Mixed nerves.
- Trigeminal (correct)
- Accessory
- Vagus (correct)
- Trochlear
What are all the mixed cranial nerves?
What are all the mixed cranial nerves?
What are the cranial nerves that are associated with the PSNS?
What are the cranial nerves that are associated with the PSNS?
The vagus nerve exits the __________ as vagosympathetic trunk
The vagus nerve exits the __________ as vagosympathetic trunk
Which hole doe the ophthalmic nerve enter?
Which hole doe the ophthalmic nerve enter?
The cricothyroideus m is innervated by the caudal laryngeal nerve
The cricothyroideus m is innervated by the caudal laryngeal nerve
The vagosympathetic trunk travels distally to become the _________
The vagosympathetic trunk travels distally to become the _________
What nerve innervates the larynx?
What nerve innervates the larynx?
Which muscle is specifically mentioned in relation to the effects of a damaged vagus nerve?
Which muscle is specifically mentioned in relation to the effects of a damaged vagus nerve?
What consequence may occur if the recurrent laryngeal nerve is damaged?
What consequence may occur if the recurrent laryngeal nerve is damaged?
In which animal is laryngeal hemiparalysis referred to as 'roaring'?
In which animal is laryngeal hemiparalysis referred to as 'roaring'?
Which nerve passes through the cribiform plate?
Which nerve passes through the cribiform plate?
What nerve enters the optic foramen and passes through the optic canal?
What nerve enters the optic foramen and passes through the optic canal?
What three cranial nerves pass through the orbital fissure with the ophthalmic nerve?
What three cranial nerves pass through the orbital fissure with the ophthalmic nerve?
What foramen does the buccal nerve arise from?
What foramen does the buccal nerve arise from?
Which of the following nerves can be seen entering the mandibular foramen
Which of the following nerves can be seen entering the mandibular foramen
The ophthalmic division of the trigeminal nerve contains _________ fibers.
The ophthalmic division of the trigeminal nerve contains _________ fibers.
What branches arise from the opthalmic division of the trigeminal nerve?
What branches arise from the opthalmic division of the trigeminal nerve?
The maxillary division of the trigeminal nerve contains sensory and motor fibers.
The maxillary division of the trigeminal nerve contains sensory and motor fibers.
Describe the pathway the maxillary nerve travels in the skull.
Describe the pathway the maxillary nerve travels in the skull.
What branches does the maxillary division of the trigeminal nerve give rise to?
What branches does the maxillary division of the trigeminal nerve give rise to?
Parasympathetic postganglionic axons are long
Parasympathetic postganglionic axons are long
What nerves course through the orbital fissure?
What nerves course through the orbital fissure?
Flashcards
Optic Nerve is CN I
Optic Nerve is CN I
Incorrect. The optic nerve is not cranial nerve I.
Cranial Nerves
Cranial Nerves
Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, and hypoglossal nerves.
Mixed Cranial Nerves
Mixed Cranial Nerves
Trigeminal, Facial, Glossopharyngeal, and Vagus nerves.
Cranial Nerves with PSNS
Cranial Nerves with PSNS
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Vagus Nerve Exit
Vagus Nerve Exit
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Ophthalmic Nerve Foramen
Ophthalmic Nerve Foramen
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Cricothyroideus Innervation
Cricothyroideus Innervation
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Vagus Sympathetic Trunk Destination
Vagus Sympathetic Trunk Destination
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Laryngeal Nerve
Laryngeal Nerve
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Vagus Nerve Damage Muscle
Vagus Nerve Damage Muscle
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Recurrent Laryngeal Nerve Damage Consequence
Recurrent Laryngeal Nerve Damage Consequence
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Laryngeal Hemiparalysis in Horses
Laryngeal Hemiparalysis in Horses
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Olfactory Nerve Pathway
Olfactory Nerve Pathway
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Optic Nerve Pathway
Optic Nerve Pathway
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Nerves through Orbital Fissure with Ophthalmic Nerve
Nerves through Orbital Fissure with Ophthalmic Nerve
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Buccal Nerve Foramen
Buccal Nerve Foramen
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Nerve entering Mandibular Foramen
Nerve entering Mandibular Foramen
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Ophthalmic Trigeminal Nerve Fibers
Ophthalmic Trigeminal Nerve Fibers
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Ophthalmic Trigeminal Nerve Branches
Ophthalmic Trigeminal Nerve Branches
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Maxillary Trigeminal Nerve Type
Maxillary Trigeminal Nerve Type
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Maxillary Nerve Skull Pathway
Maxillary Nerve Skull Pathway
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Maxillary Nerve Branches
Maxillary Nerve Branches
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Parasympathetic Postganglionic Axons Length
Parasympathetic Postganglionic Axons Length
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Nerves through Orbital Fissure
Nerves through Orbital Fissure
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Study Notes
Vagus Nerve and Laryngeal Function
- The vagus nerve, a cranial nerve, plays a crucial role in regulating various bodily functions, including the function of the larynx in dogs and other animals.
- Damage to the vagus nerve can specifically affect the larynx, potentially leading to dysfunction.
- One specific muscle affected by vagus nerve damage is the cricoarytenoideus dorsalis muscle.
- The recurrent laryngeal nerve, a branch of the vagus nerve, innervates the cricoarytenoideus dorsalis muscle.
- Damage to the recurrent laryngeal nerve results in laryngeal hemiparalysis, a condition where one side of the larynx is paralyzed.
- Laryngeal hemiparalysis is known as "roaring" in horses, caused by the inability of the paralyzed side of the larynx to fully open during respiration.
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Description
Explore the critical role of the vagus nerve in laryngeal function, particularly in dogs and horses. Learn about the impact of damage to the recurrent laryngeal nerve and the resulting condition known as laryngeal hemiparalysis. Understand the anatomical relationships and implications for respiratory health.
