CRANIAL NERVES Flashcards
These cranial nerves are considered extension of the telencephalon.
Optic and olfactory
The following cranial nerves exits from the Pons EXCEPT:
A. Glossopharyngeal
B. Abducens
C. Facial
D. Vestibulocochlear
A. Glossopharyngeal
The spinal trigeminal nucleus is located in the ___________.
Medulla
The following convey pain information from their areas to the spinal trigeminal nucleus EXCEPT:
A. CN VII
B. CN XII
C. CN IX
D. CN X
B. CN XII
A group of second order neurons which have cell bodies in the caudal pons.
A. Spinal trigeminal
B. Mesencephalic
C. Prinicpal sensory
D. All the choices are correct.
C. Prinicpal sensory
Involved with the proprioception of the face.
A. Mesencephalic
B. Spinal Trigeminal
C. Principal Sensory
D. None of the above
A. Mesencephalic
TRUE or FALSE: The principal sensory is the only structure in the CNS to contain cell bodies of a primary afferent, which are usually contained within the ganglia.
FALSE. It is the Mesencephalic nucleus not the Principal Sensory.
The trigeminal motor nucleus is located in the __________.
Mid-pons
The following are muscles of mastication EXCEPT:
A. Temporalis
B. Masseter
C. Medial pterygoid
D. Tensor tympani
D. Tensor tympani
The cranial nerve the conveys taste sensations from the anterior two-thirds of the tongue and oral cavity.
Facial nerve (CN 7)
The sensory and parasympathetic parts of the facial nerve arises from the __________.
A. Mid-pons
B. Nucleus ambiguus
C. Facial nerve nucleus in pons
D. Nervus intermedius
D. Nervus intermedius
Provides parasympathetic innervation to several glands, including nasal, palatine, lacrimal, and pharyngeal glands.
A. Nerve to stapedius
B. Greater petrosal nerve
C. Chorda tympani
D. Intrapetrous facial
B. Greater petrosal nerve
The following are extracranial branches of the facial nerve EXCEPT:
A. Posterior auricular nerve
B. Intrapetrous facial
C. Branch to posterior belly of digastric
D. Five major facial branches (parotid gland)
B. Intrapetrous facial
The following are major facial branches of the parotid gland EXCEPT:
A. Zygomatic
B. Buccal
C. Mandibular
D. Maxillary
D. Maxillary
Taste from the posterior 1/3 of the tongue and information from the carotid baroreceptors and carotid body chemoreceptors.
A. Spinal nucleus of the trigeminal nerve
B. Solitary nucleus
C. Lateral nucleus of ala cinerea
D. Nucleus ambiguus
B. Solitary nucleus
Visceral pain
A. Spinal nucleus of the trigeminal nerve
B. Solitary nucleus
C. Lateral nucleus of ala cinerea
D. Nucleus ambiguus
C. Lateral nucleus of ala cinerea
The lower motor neurons for the stylopharyngeus muscle.
A. Spinal nucleus of the trigeminal nerve
B. Solitary nucleus
C. Lateral nucleus of ala cinerea
D. Nucleus ambiguus
D. Nucleus ambiguus
Somatic sensory fibers from the middle ear.
A. Spinal nucleus of the trigeminal nerve
B. Solitary nucleus
C. Lateral nucleus of ala cinerea
D. Nucleus ambiguus
A. Spinal nucleus of the trigeminal nerve
Parasympathetic input to the parotid and mucus glands.
A. Lateral nucleus of ala cinerea
B. Nucleus ambiguus
C. Inferior salivatory nucleus
D. Solitary nucleus
C. Inferior salivatory nucleus
Sends parasympathetic output to the viscera, especially the intestines.
A. Solitary nucleus
B. Dorsal nucleus of vagus
C. Nucleus ambiguus
D. Spinal trigeminal nucleus
B. Dorsal nucleus of vagus
Gives rise to the branchial efferent motor fibers of the vagus nerve and preganglionic parasympathetic neurons that innervate the heart.
A. Solitary nucleus
B. Dorsal nucleus of vagus
C. Nucleus ambiguus
D. Spinal trigeminal nucleus
C. Nucleus ambiguus
Receives afferent taste information and primary afferents from visceral organs
A. Solitary nucleus
B. Dorsal nucleus of vagus
C. Nucleus ambiguus
D. Spinal trigeminal nucleus
A. Solitary nucleus
Receives information about deep/crude touch, pain, temperature of the outer ear, the dura of the posterior cranial fossa and the mucosa of the larynx.
A. Solitary nucleus
B. Dorsal nucleus of vagus
C. Nucleus ambiguus
D. Spinal trigeminal nucleus
D. Spinal trigeminal nucleus
Two main actions of the SCM.
Tilts and rotates the head
