36 Questions
Which cranial nerve carries general sensory fibers for the posterior 1/3rd part of the tongue, soft palate, upper pharynx, and palatine tonsils?
Cranial Nerve IX
Which cranial nerve travels together with CN X and CN XI in the jugular foramen?
Cranial Nerve IX
Which nucleus is responsible for the motor function of the Glossopharyngeal Nerve?
Nucleus Ambiguus
Which structure is formed anteriorly by the petrous portion of the temporal bone and posteriorly by the occipital bone?
Jugular Foramen
Which muscle receives motor fibers originating from the cranial part of the nucleus ambiguus?
Stylopharyngeus Muscle
Which ganglion carries parasympathetic fibers destined for the parotid gland?
Otic Ganglion
Which cranial nerve carries general sensory fibers for the carotid sinus and carotid body?
Cranial Nerve IX
Which structure is responsible for carrying fibers that communicate with the vagus nerve?
Carotid Sinus & Carotid Body
Which ganglion carries sensory fibers for taste sensation from the posterior 1/3 of the tongue?
Inferior Glossopharyngeal Ganglion
What is responsible for carrying fibers that synapse in the caudal spinal nucleus of CN V?
General Sensory Fibers
Which cranial nerve carries fibers within the auricular branch of vagus nerve?
Cranial Nerve IX
Which cranial nerve originates in the inferior salivatory nucleus?
Cranial Nerve IX - Glossopharyngeal
Which cranial nerve has sensory, motor, and parasympathetic functions?
Cranial Nerve X - Vagus
Which cranial nerve contains the Nucleus ambiguus responsible for branchial motor and preganglionic parasympathetic supply to the heart?
Cranial Nerve X - Vagus
Which cranial nerve leaves the skull through the jugular foramen?
Cranial Nerve X - Vagus
Which cranial nerve is responsible for supplying all intrinsic muscles of the larynx, except for the cricothyroid muscle?
Cranial Nerve X - Vagus
Which cranial nerve arises from motor neurons in the upper 5 cervical segments of the spinal cord?
Cranial Nerve XI - Accessory
Which cranial nerve exits the skull from the jugular foramen?
Cranial Nerve XI - Accessory
Which cranial nerve is responsible for innervating the sternocleidomastoid and trapezius muscles?
Cranial Nerve XI - Accessory
What is responsible for carrying fibers that synapse in the caudal spinal nucleus of CN V?
Inferior glossopharyngeal ganglion
Which structure is responsible for carrying fibers that communicate with the vagus nerve?
Auricular branch of vagus nerve
Which cranial nerve is responsible for supplying all intrinsic muscles of the larynx, except for the cricothyroid muscle?
CN X - Vagus
Which ganglion carries sensory fibers for taste sensation from the posterior 1/3 of the tongue?
Inferior ganglion
Which muscle receives motor fibers originating from the cranial part of the nucleus ambiguus?
Stylopharyngeus muscle
Where does CN IX - Glossopharyngeal exit the brain stem?
Medulla
Which part of the tongue does the inferior glossopharyngeal ganglion carry general sensory fibers for?
Posterior 1/3rd part
Which structure forms the jugular foramen anteriorly?
Temporal bone
Which nerve travels together with CN IX and CN XI in the jugular foramen?
CN X - Vagus nerve
Which nucleus is responsible for the motor function of CN IX - Glossopharyngeal?
Nucleus ambiguus
Which muscle originates from the cranial part of the nucleus ambiguus?
Stylopharyngeus muscle
Which cranial nerve carries sensory fibers for taste sensation from the posterior 1/3 of the tongue, soft palate, upper pharynx, and palatine tonsils?
Cranial Nerve IX - Glossopharyngeal
Which cranial nerve contains the Nucleus ambiguus responsible for branchial motor and preganglionic parasympathetic supply to the heart?
Cranial Nerve X - Vagus
Which ganglion carries parasympathetic fibers destined for the parotid gland?
Otic Ganglion
Which cranial nerve originates in the inferior salivatory nucleus?
Cranial Nerve IX - Glossopharyngeal
Which cranial nerve exits the skull from the jugular foramen?
Cranial Nerve X - Vagus
Which cranial nerve carries general sensory fibers for the carotid sinus and carotid body?
Cranial Nerve IX - Glossopharyngeal
Study Notes
Glossopharyngeal Nerve (CN IX)
- Carries general sensory fibers for the posterior 1/3 of the tongue, soft palate, upper pharynx, and palatine tonsils
- Contains the Nucleus ambiguus responsible for branchial motor and preganglionic parasympathetic supply to the heart
- Exits the skull through the jugular foramen
- Originates in the inferior salivatory nucleus
- Carries sensory fibers for taste sensation from the posterior 1/3 of the tongue
- Carries general sensory fibers for the carotid sinus and carotid body
- Travels together with CN X and CN XI in the jugular foramen
- Has sensory, motor, and parasympathetic functions
Nucleus Ambiguus
- Responsible for the motor function of the Glossopharyngeal Nerve
- Contains motor neurons that originate from the cranial part of the nucleus ambiguus
- Supplies motor fibers to the stylopharyngeus muscle
Jugular Foramen
- Formed anteriorly by the petrous portion of the temporal bone and posteriorly by the occipital bone
- CN IX, CN X, and CN XI travel together in the jugular foramen
Other Structures
- Inferior glossopharyngeal ganglion carries general sensory fibers for the posterior 1/3 of the tongue
- Auricular branch of vagus nerve carries fibers that communicate with the vagus nerve
- Caudal spinal nucleus of CN V responsible for carrying fibers that synapse
- Occipital bone forms the posterior part of the jugular foramen
Test your knowledge of the cranial nerves IX, X, XI, and XII with this quiz. Explore their functions, nuclei, exit points from the brain stem, and sensory ganglia.
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