Podcast Beta
Questions and Answers
The optic nerve is CN I
False
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.
What are all the mixed cranial nerves?
Signup and view all the answers
What are the cranial nerves that are associated with the PSNS?
Signup and view all the answers
The vagus nerve exits the __________ as vagosympathetic trunk
Signup and view all the answers
Which hole doe the ophthalmic nerve enter?
Signup and view all the answers
The cricothyroideus m is innervated by the caudal laryngeal nerve
Signup and view all the answers
The vagosympathetic trunk travels distally to become the _________
Signup and view all the answers
What nerve innervates the larynx?
Signup and view all the answers
Which muscle is specifically mentioned in relation to the effects of a damaged vagus nerve?
Signup and view all the answers
What consequence may occur if the recurrent laryngeal nerve is damaged?
Signup and view all the answers
In which animal is laryngeal hemiparalysis referred to as 'roaring'?
Signup and view all the answers
Which nerve passes through the cribiform plate?
Signup and view all the answers
What nerve enters the optic foramen and passes through the optic canal?
Signup and view all the answers
What three cranial nerves pass through the orbital fissure with the ophthalmic nerve?
Signup and view all the answers
What foramen does the buccal nerve arise from?
Signup and view all the answers
Which of the following nerves can be seen entering the mandibular foramen
Signup and view all the answers
The ophthalmic division of the trigeminal nerve contains _________ fibers.
Signup and view all the answers
What branches arise from the opthalmic division of the trigeminal nerve?
Signup and view all the answers
The maxillary division of the trigeminal nerve contains sensory and motor fibers.
Signup and view all the answers
Describe the pathway the maxillary nerve travels in the skull.
Signup and view all the answers
What branches does the maxillary division of the trigeminal nerve give rise to?
Signup and view all the answers
Parasympathetic postganglionic axons are long
Signup and view all the answers
What nerves course through the orbital fissure?
Signup and view all the answers
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.
