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Neuroanatomy notes
Spencer's section
156
Anatomy
Professional
06/03/2010

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Term
Sensory Nuclei
Definition
Receives afferent information.
Term
Sensory Nuclei
Definition
Reflex responses and/or projection to cortex via thalamus
Term
Trigeminal system
Definition
Mesencephalic,Chief Sensory, and Spinal Trigeminal nuclei are all part of the:
Term
Proprioception
Definition
Mesencephalic nucleus is responsible for "what" in the trigeminal system?
Term
2 pt. differentiation, vibration, and pressure
Definition
Chief Sensory nucleus is responsible for what in the Trigeminal system?
Term
Pain and temperature
Definition
Spinal trigeminal nucleus is responsible for "what" in the trigeminal system?
Term
Tegmentum
Definition
Mesencephalic, chief sensory, spinal trigeminal are a few of the nuclei in:
Term
Tegmentum
Definition
Cochlear, vestibular, and solitarius are a few fo the nuclei found in:
Term
Mesencephalic Nucleus
Definition
CN 5 provides TMJ proprioceptive info., delivered to "what" nucleus.
Term
Multipolar neuron
Definition
What type of neuron is found in a Motor nuclei?
Term
Motor nuclei
Definition
Cell bodies of preganglionic neurons to smooth muscle are found in:
Term
Motor nuclei
Definition
Neuron cell bodies to skeletal muscle, cardiac muscle, and glands are in:
Term
Yes
Definition
Does Hypoglossal, facial, and Oculomotor nerves have somatic nuclei?
Term
Edinger-Westphal
Definition
What ANS Nuclei is responsible for parasympathetic CN 3 pupil restriction?
Term
Rostral Medulla
Definition
Where is the inferior salvatory nucleus located?
Term
Medulla
Definition
Where is the dorsal motor of vagus nucleus located?
Term
Midbrain
Definition
Where is the Edinger-Westphal nucleus located?
Term
Caudal pons
Definition
The CN 5,6,7 are located in what part of brain stem?
Term
Bipolar
Definition
What type of neurons are found in the olfactory nerve?
Term
Olfactory nerve axons
Definition
What nerve axons pass through the cribiform plate?
Term
olfactory bulb in the glomerulus
Definition
Where does the olfactory nerve synapse?
Term
Olfactory tract
Definition
Axons from olfactory bulb form -
Term
Lateral stria
Definition
What synapses in the lateral (primary) olfactory area
'
Term
Lateral (primary) olfactory area
Definition
The pyriform area and the amygdala nucleus make up the:
Term
Pyriform area
Definition
The uncus and the entorhinal area.
Term
Pyriform area
Definition
The uncus and the entorhinal area.
Term
Olfactory association cortex
Definition
lateral stria synapses in the lateral olfactory area and then projects to:
Term
Olfactory nerve axons
Definition
A fracture of the cribiform plate may tear what axons?
Term
Anosmia
Definition
Term for loss of sense of smell?
Term
Fracture and Olfactory groove meningioma
Definition
2 causes for loss of smell:
Term
Olfactory bulb or frontal lobe, "may induce an UNCIATE FIT"
Definition
Tumor placed anterior in the olfactory groove puts pressure on:
Term
anosmia along with Foster Kennedy syndrome (optic atrophy and papilademia)
Definition
Tumor posterior in olfactory groove may cause:
Term
Unciate fit - Uncus origin
Definition
Sensation of smelling something bad, sometimes a symptom with epileptics.
Term
Olfactory groove meningioma
Definition
Personality changes and loss of smell (prefrontal cortex) may indicate:
Term
Cornea
Definition
Refracts light in the eye and is avascular -
Term
Sclera and Cornea
Definition
Outer layer of the eye -
Term
The middle layer of the eye
Definition
The choroid, ciliary body and iris make up:
Term
Inner layer
Definition
The retina makes up what layer of the eye?
Term
CN 3, oculomotor nerve
Definition
Sphincter pupilae constricts the pupil by which innervation?
Term
dilator pupilae
Definition
A sympathetic muscle response seen in which muscle of the eye:
Term
ciliary process
Definition
What produces fluid aqueous humor?
Term
Ciliary muscle innervated by CN 3 parasympathetics
Definition
Changes the lenses shape in the eye refracting light differently.
Term
Glaucoma
Definition
Eye - Blocked posterior chamber hinders aqueous fluid movement and may cause:
Term
Cataracts
Definition
Thickened lens of the eye -
Term
Sclera of venous sinus: Canal of schlemm
Definition
Aqueous humor exits at:
Term
Ciliary Body
Definition
Ciliary muscle and process make up the
Term
Anterior and posterior
Definition
What two chambers are found in the eye?
Term
Retina
Definition
Fundus or back of the eye
Term
Macula Ludia
Definition
Point in the back of the eye with the greatest visual acuity -
Term
Optic disc
Definition
Blind spot in the eye -
Term
Optic papilla
Definition
Exit point in the eye for the optic nerve.
Term
Ciliary body
Definition
Makes fluid aqueous humor
Term
Optic papilla
Definition
Looking into the back of the eye, the point that arteries seem to project out.
Term
Retina
Definition
Contains 10 layers of rods and cones, bipolar neurons, and ganglion cells -
Term
Rods
Definition
Best at gathering information for peripheral vision and dim light vision.
Term
Cones
Definition
Best at gathering information for visual acuity and bright light.
Term
Ganglion secondary sensory neuron
Definition
Photoreceptor to bipolar primary sensory neuron to:
Term
Meningeal layer of dura mater
Definition
Optic nerve to eye has myelination and CSF contained in:
Term
Lateral genicular nucleus in the thalamus
Definition
optic nerve to optic chiasm to optic tract to:
Term
Optic radiation (geniculocalcarine tract)
Definition
optic tract to lateral geniculate nucleus in thalamuc to:
Term
Visual cortex
Definition
Optic radiations travel to:
Term
Parietal lobe
Definition
Optic radiation upper fibers:
Term
Temporal lobe (Meyer's loop)
Definition
Optic radiation lower fibers:
Term
anopias
Definition
deficits in visual field
Term
Oculomotor nucleus
Definition
edinger-westphal nucleus sits next to which other nucleus?
Term
Oculomotor nucleus
Definition
edinger-westphal nucleus sits next to which other nucleus?
Term
special visceral afferent
Definition
type of afferent/efferent information the olfactory nerve communicates:
Term
Special visceral afferent
Definition
type of afferent/efferent information the optic nerve communicates:
Term
General sensory efferent and general visceral efferent
Definition
type of afferent/efferent information the occulomotor nerve communicates:
Term
ptosis
Definition
eye lid droop
Term
mydriasis
Definition
dilated pupil
Term
diplopia
Definition
double vision
Term
Trochlear nucleus
Definition
Nucleus sending GSE fibers to the superior oblique muscle
Term
Superior oblique muscle
Definition
Muscle moving eye laterally and down
Term
Abducens nerve
Definition
Longest intracranial nerve which communicates with the lateral rectus.
Term
Saccadic
Definition
voluntarily initiated conjugate movements
Term
Smooth pursuit
Definition
largely involuntary movements tracking a moving target.
Term
Vergence
Definition
convergence and divergence collectively
Term
Cortex
Definition
Responsible area for eye movement related to the eye field of vision
Term
Vestibular nuclei
Definition
Responsible for coordination of head and eyes
Term
Superior colliculus
Definition
Responsible for reflex eye response, tracking, and coordination.
Term
Paramedian Pontine Reticular Formation
Definition
Lateral gaze center
Term
Gaze centers
Definition
PPRF and rostral interstitial nucleus of the MLF are:
Term
vertical gaze
Definition
Cyst in the rostral interstitial nucleus may inhibit
Term
extraocular muscles
Definition
CN 3,4,6 control
Term
A direct response
Definition
Pupillary light reflex - constriction in eye with light
Term
Consensual response
Definition
Pupillary light reflex - constriction in pupil of contralateral eye
Term
Accomodation-convergence reflex
Definition
Eye reflex which involves convergence, lens thickening, & restriction of pupil
Term
CN 3,4,6
Definition
Name 3 cranial nervers developed from myotomes and are GSE.
Term
Special Visceral
Definition
Association with branchial arch embryoloically
Term
The Trigeminal Nerve
Definition
Ophthalmic, Maxillary, and Mandibular are divisions of what nerve?
Term
Proprioceptive
Definition
The Trigeminal (semilunar/gasserian) ganglion doesnt have____ sensory info.
Term
Midpons
Definition
The trigeminal motor nucleus is located:
Term
The trigeminal nerve
Definition
Mesencephalic, chief, and spinal trigeminal nuclei share info. from:
Term
A ganglion
Definition
Group of cell bodies originating from the neural crest:
Term
muscles of mastication
Definition
The trigeminal motor nucleus provides ipsilateral response to:
Term
Mesencephalic nucleus
Definition
Part of CN 5 passes through the trigeminal ganglion w/o synapsing to:
Term
Mesencephalic nucleus (w/ 1st order cell bodies)
Definition
Nucleus for trigeminal information that processes proprioceptive input.
Term
Chief Sensory Nucleus
Definition
Nucleus concerned with 2 pt touch, vibration, touch, and pressure
Term
ventral posterior (medial) thalamic nucleus
Definition
trigeminal-thalamic tract ascends both ipsilateral and contralateral to the:
Term
Spinal trigeminal tract
Definition
This ipsilateral tract synapses in the spinal trigeminal nucleus
Term
Chief Sensory nucleus
Definition
2 pt touch, vibration, touch, pressure, on face and ant. head (nucleus)
Term
Spinal trigeminal nucleus
Definition
pain and temperature of face and ant. head (nucleus)
Term
spinal trigeminal nucleus
Definition
nucleus extending down into C1-C3 with the spinal trigeminal tract synapsing
Term
pain and temperature fibers
Definition
ascends contralaterally in the ventral trigeminothalamic tract
Term
Efferent reflex responses from sensory trigeminal nuclei
Definition
corneal reflex and the sneezing reflex are
Term
Special visceral affarent in of the facial nerve
Definition
info type for taste on the anterior 2/3 of tongue
Term
Special visceral affarent in of the facial nerve
Definition
info type for taste on the anterior 2/3 of tongue
Term
geniculate ganglion
Definition
Ganglion found in the petrous bone
Term
submandibular and sublingual glands
Definition
superior salvatory nucleus to corda tympani to submandibular ganglion to
Term
Facial nerve
Definition
geniculate ganglion and general sensory taste are sensory applications of the
Term
Facial nerve
Definition
the superior salivatory nucleus is a SVE motor nucleus for the
Term
tegmentum of caudal pons
Definition
Where is the facial nucleus located?
Term
corticobulbar fibers
Definition
What connects the cortex to facial motor nucleus and to hypoglossal nucleus
Term
hyperacusis
Definition
CN 7 lesioned to stapedius resulting in a inability to distinguish lound sounds
Term
facial colliculus
Definition
abducens nucleus and axon fibers from facial nerve run under:
Term
bony labyrinth of inner ear
Definition
cochlea, vestibule, semicircular canals make up:
Term
membranous labyrinth
Definition
tube like structure coarsing in the bony labyrinth
Term
1.cochlea, 2.vestibule, 3.semicircular canals of the bony labyrinth
Definition
1. cochlear duct, 2. utricle/saccule, 3. semicircular ducts correspond with:
Term
organ of corti, macula, crista ampullaris corresponding to M. Labyrinth
Definition
membranous labyrinths inner side has specialized epithelium called:
Term
tectorial, otolithic, cupula
Definition
membranes for the organ of corti, macula, crista ampullaris
Term
organ of corti, macula, crista ampullaris epithelium
Definition
hairs are embedded in the tectorial, otolithic, cupula membranes of the
Term
organ of corti
Definition
Structure w/ hairs embedded in the tectorial membrane cause bend w/ sound
Term
bipolar neurons
Definition
neuron cell body type - of the cochlear division of CN8
Term
superior olivary nucleus
Definition
hair cells to cochlear ganglion to cochlear nucleus to
Term
inferior colliculus to medial geniculate body to auditory radiation
Definition
aud path: cochlear nucleus, superior olivary nucleus to lat. lemniscus to:
Term
medial geniculate body to primary auditory cortex
Definition
auditory radiation connects:
Term
bilateral
Definition
Auditory pathway, does it ascend ipsilater, contralateral, or bilateral
Term
rostral medulla
Definition
cochlear nucleus is located:
Term
trapezoid body
Definition
In coming auditory information crosses brain in the:
Term
static labyrinth
Definition
detects head movement according to gravity and linear acceleration
Term
recognizing horizontal movement
Definition
utricle is in the static labyrinth is responsible for:
Term
recognizing vertical movement
Definition
saccule in the static labyrinth is responsible for:
Term
hairs embedded in otolithic membrane of the macula
Definition
These in the macula bend with head movement
Term
brain stem
Definition
AP travel along neurons of vestibular division of CN8 to:
Term
Movement of body causing fluid movement in the fluid filled middle ear.
Definition
Membrane movement in middle ear is a result of:
Term
kinetic labyrinth
Definition
detects angular acceleration / deceleration of head:
Term
crista ampullaris hair embeds in the cupula and bends w/ head movement
Definition
kinetic labyrinth has semicircular ducts which have hair embedded in:
Term
vestibular area
Definition
vestibular nucleus is located under:
Term
vestibular nucleus
Definition
receives majority of CN8 fibers
Term
cerebellum, spinal cord, brain stem, and cortex
Definition
CN8 fibers that do not go to vestibular nucleus project to:
Term
with head movement to maintain visual fixation. yolking of eyes through MLF
Definition
CN8 fibers to brain stem coordinate conjugate eye movement with:
Term
vestibular or scarpa's ganglion
Definition
cell bodies of vestibular fibers located in:
Term
glossopharyngeal Nerve
Definition
Cranial nerve responsible for taste of the posterior 1/3 of tongue:
Term
glossopharyngeal nerve
Definition
CN for carotid sinus input(baroreceptors, chemoreceptors)
Term
glossopharyngeal Nerve
Definition
CN for general sensory for post. 1/3 of tongue and post. wall upper pharynx
Term
glossopharyngeal
Definition
CN with ANS innervation of the parotid gland
Term
SVE
Definition
nerve fiber typ for CN9 innervation of the stylopharyngeus muscle
Term
glossopharyngeal Nerve
Definition
sensory for gag reflex of posterior 1/3 of tongue
Term
nucleus ambiguus of the medulla
Definition
nucleus for innervations of skeletal muscle by CN 9, 10, and cranial root 11
Term
5, SVA, GVA, GSA, SVE, GVE
Definition
How many fiber types are found in the glossopharyngeal nerve
Term
nucleus solitarius
Definition
nucleus for SVA and GVA fibers in CN9
Term
nucleus ambiguus
Definition
nucleus for SVE fibers in CN9
Term
inferior salivatory
Definition
nucleus for GVE fibers of CN9
Term
rostral medulla
Definition
inferior salvatory nucleus is located in the:
Term
medulla
Definition
nucleus ambiguus is located in:
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