Flashcards in 21 - Parasympathetic CNs Deck (56)
Four of the twelve pairs of cranial nerves carry parasympathetic information. These nerves are...
The oculomotor nerve carries two modalities, which are...
In the GSM modality of the oculomotor nerve, the cell bodies of these motor neurons are located in the oculomotor nuclear complex. They go from the oculomotor complex, through the _______ _______ _______ and to 4 of 6 of the extrinsic muscles of the eye, and the levator palpebrae superioris.
Superior orbital fissure
What are the 4 extrinsic muscles of the eye that the oculomotor nerve innervates?
In the GVM modality of the oculomotor nerve, the (PREGANGLIONICS/POSTGANGLIONICS) go from the Edinger-Westphal nucleus through the superior orbital fissure and to the ciliary ganglion.
In the GVM modality of the oculomotor nerve, the (PREGANGLIONICS/POSTGANGLIONICS) go to the constrictor pupillae and ciliary muscles.
This cranial nerve carries the parasympathetic fibers that control the shape of the lens and pupil.
Oculomotor (CN III)
The trigeminal nerve (CN V) is named for its three major branches, which are sometimes referred to as separate nerves or divisions. These branches are...
This division of the trigeminal nerve enters the orbit along with the oculomotor, trochlear, and abducens nerves. It is a general sensory nerve to the orbit and its contents.
This division of the trigeminal nerve conveys sensation to the nose, skin above the eye, including upper eyelid but not lower eyelid.
This division of the trigeminal nerve has sensory fibers that reach the eyeball either through the short or long ciliary nerves. Long ciliary nerves also convey sympathetic fibers to the dilator muscle of the pupil.
What are the branches of the ophthalmic nerve?
This division of the trigeminal nerve provides sensation to the maxillary region. Its branches include infraorbital, anterior superior alveolar, zygomatic, palatine, nasal, and posterior superior alveolar (see lecture 17).
This division of the trigeminal nerve provides sensation to the mandibular region. Its branches include motor branches to the four muscles of mastication, auriculotemporal (sensory to scalp behind jaws, inferior alveolar, lingual, and buccal.
The trigeminal nerve is not a parasympathetic nerve, but branches of the _______ nerve piggy-back on some of the branches of the trigeminal nerve, and so it is considered so sometimes.
The ________ nerve is the major sensory nerve to the face (GSS).
T/F. The trigeminal nerve also supplies the tongue, but this is general sensory, not special sensory for taste.
The trigeminal nerve also supplies motor innervation to muscles of ________ (SVM), muscles derived from first pharyngeal arch (mandibular arch).
This nerve is the largest of the twelve cranial nerves.
Trigeminal (CN V)
In the GSS modality of the trigeminal nerve, cell bodies of sensory neurons are located in the trigeminal (semilunar) ganglion. These neurons carry sensory information from...
Face and anterior scalp
Conjunctiva and eyeball
Nasal and oral cavities
Anterior 2/3 of tongue
External surface of ear drum
Dura of middle and anterior cranial fossae
In the SVM modality of the trigeminal nerve, cell bodies of these motor neurons are located in the masticular nucleus. These motor neurons supply...
Muscles of mastication (temporalis, masseter, pterygoids)
Tensor veli palatini
Anterior belly of gastric
This cranial nerve is the primary motor nerve to muscles of facial expression.
The _______ nerve supplies muscles of facial expression derived from the second pharyngeal arch (hyoid arch) (SVM).
T/F. The facial nerve also carries general sensory fibers (GSS) as well as special visceral sensory fibers (SVS).
The facial nerve carries general visceral motor (GVM) fibers as part of the __________ system.
What are the motor branches of the facial nerve?
In the SVM modality of the facial nerve, cell bodies of these motor neurons are found in the motor nucleus of CN VII. Nerve fibers exit through the _________ foramen.
In the SVM modality of the facial nerve, branches of the facial nerve supply which muscles?
In the GSS modality of the facial nerve, cell bodies of the sensory neurons are located in the geniculate ganglion. It supplies what?
Part of external ear