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P1 PHAR 7456

Physiology - Neurophysiology Exam 04 Part 02

divisions of gray matter are? dorsal horn, ventral horn, intermediate region
dorsal horn is? sensory
ventral horn is? motor
intermediate region contains? interneurons
touch input from lower half of body; part of dorsal columns gracile fasiculus
fine motor control lateral corticospinal tract
proprioceptive input from body to cerebellum spinocerebellar tract
pain and temperature input from body spinothalamic tract
postural motor control vestibulospinal and reticulospinal tracts
touch input from upper half of body; part of dorsal columns cuneate fasiculus
motor input to upper limbs rubrospinal tract
dorsal columns consists of? gracile and cuneate fasiculus
balance and equilibrium conrolled? spinocerebellar tract
baroreceptor reflex and taste system associated with? solitary nucleus and tract
carries sensory info from face and conveys pain associated with? spinal trigeminal nucleus and tract CN 5
parasympathetic, preganglionic neuron dorsal motor nucleus of vagus CN 10
connects to brainstem inferior cerebellar peduncle
eye movements associated with? abducens nucleus and nerve CN 6
controls facial movements facial nucleus and nerve CN 7
path in auditory system lateral lemniscus
tell if something is on the R or L side of body superior olivary nucleus
auditory associate with? trapezoid body
transmit touch info trigeminal main sensory nucleus CN 5
chewing muscles trigeminal motor nucleus CN 5
micturition reflex associate with? periaqueductal gray
basal nuclei fx degeneration causes parkinsons sustantia nigra
eye movements trochlear nucleus CN 4
moves 4 of 6 eye muscles, parasym ganglions oculomotor nucleus and nerve CN 3
vision fx superior colliculus
emotions amygdala
basal ganglia caudate nucleus
limbic system fornix
memory hippocampus
major byway sensory info to cortex internal capsule, posterior limb
limbic system mammillary body
basal ganglia substantia nigra
receives info from body ventroposterior lateral nucleus
recieve info from face ventroposterior medial nucleus
this is nerve is the sense of smell, it only sensory (afferent) olfactory nerve
primary sensory neurons in olfactory epithelium in roof of nasal cavity send olfactory (smell) information to the olfactory bulb. these fibers are the ? olfactory nerve
contains cell bodies of secondary sensory neurons, whose axons comprise the olfactory tract. olfactory bulb
conveys olfactory information to olfactory cortical areas olfactory tract
this nerve is for the sense of sight and is only sensory optic nerve
what are the primary sensory neurons of the optic nerve? photoreceptors in retina of eye transmit visual information to bipolar cells in retina
where do the bipolar cells synapse? on ganglion cells, whose cell bodies are also in the retina
what are the secondary neurons of the optic nerve ganglion cells
axons of __ leave the eyeball to form the optic nerve ganglion cells
innervation of eye muscles done by? oculomotor nerve
has both motor and sensory neurons oculomotor nerve
this nerve exits from the midbrain oculomotor nerve
the optic nerve innervates these 4 of 6 eye muscles superior rectus, medial rectus, inferior rectus, and inferior oblique
eye movement toward nose by medial rectus adduction
move eye down by _ and helped by _ inferior rectus, superior oblique CN 4
move eye up by _ and _ superior rectus, inferior oblique
innervates _ that elevates upper eyelid (so we can look up without eyelid getting in the way) levator palpebrae superioris
sensory component contains a few fibers that transmit sensory info from muscle sensory receptors; these exit the motor nerves to course mainly in the opthalmic division of the ? trigeminal nerve
innervation of the superior oblique eye muscle trochlear nerve CN 4
efferent and afferent for innervation of superior oblique eye muscles trochlear nerve
this nerve exits from the caudal midbrain trochlear nerve
moves eyeball down and lateral, causes inward rotation of eyeball trochlear nerve
_ is the only cranial nerve that exits dorsally , and is the only one that crosses trochlear
seonsory component from muscle receptors, similar to oculomotor trochlear nerve
has parasympathetic component - arises from edinger-westphal nucleus (part of _ nuclear complex) oculomotor nerve
preganglionic neurons project to ciliary ganglion in this nerve oculomotor nerve
postganglionic fibers innervate constrictor pupillae muscle to constrict pupil, and ciliary muscle to change shape of lens in this nerve oculomotor nerve
this nerve has sensory information from face, and motor control of chewing muscles trigeminal nerve
this nerve has both afferent and efferent, nerve exits from pons trigeminal nerve
_ arises from pons and courses to the _ ganglion, which contains cell bodies of sensory fibers. 3 major divisions of this leave the ganglion trigeminal
sensory input from eye, orbit, forehead, ethmoid (roof of nasal cavity) and frontal sinuses ophthalmic (V1) of the trigeminal nerve
sensory input from maxilla (upper jaw) and overlying skin, nasal cavity, palate, nasopharynx, and part of meninges maxillary V2 of the trigeminal nerve
sensory input from mouth, lower jaw, and anterior 2/3rds of tongue. motor outflow to chewing muscles mandibular V3 of trigeminal nerve
name the 3 divisions of the trigeminal nerve V1 ophthalmic, V2 maxillary, V3 mandibular
pain and temp (secondary sensory neurons) associated with this nerve spinal trigeminal nucleus
touch sensation (secondary sensory neurons) trigeminal main sensory nucleus
cell bodies of primary sensory neurons that transmit information from chewing muscles trigeminal mesecephalic nucleus
cell bodies of motor neurons that innervate chewing muscles trigeminal motor nucleus
this nerve innervates lateral rectus of eye muscle abducens nerve CN 6
has both afferent and efferent , exits at pontomedullary junction abducens nerve
moves the eyeball laterally (abduction) abducens nerve
sensory component from muscle receptors, similar to oculomotor abducens nerve
motor control of muscles of facial expression, and taste from this nerve facial nerve, CN 7
both afferent and efferent, nerve exits at pontomedullary junction facial nerve
somatic motor control of muscles of facial expression is the motor component of this nerve facial nerve
visceral parasympathetic motor control of salivary glands (except parotid), lacrimal gland, and mucus glands of this nerve facial nerve
sensory input from skin on lower part of ear and behind the ear in this nerve facial nerve
taste buds from anterior 2/3rds of tongue; but remember that other sensations from this region travels in trigeminal nerve. fibers course in solitary tract to terminate in solitary nucleus facial nerve
auditory and vestibular information vestibulocochlear nerve
only afferent ; nerve exits at pontomedullary junction, just lateral to facial nerve vestibulochochlear nerve
hair cells in cochlea transmit information onto primary sensory neurons in this nerve auditory component of vestibulocochlear nerve
primary sensory neurons exit the cochlea, from CN 8 and terminate in the cochlear nuclei in the brainstem auditory component of vestibulocochlear nerve
hair cells in semicircular canals, saccule, and utricle transmit information onto primary sensory neurons vestibular comp of vestibulocochlear nerve
primary sensory neurons exit the structures, form CN 8, and terminate in the vestibular nuclei in the brainstem vesibular comp of vestibulocochlear nerve
nerve associate with taste and chewing glossopharyngeal nerve CN 9
both motor and sensory, nerve exits from medulla glossopharyngeal nerve CN 9
innervates a muscle involved in elevating the pharynx during swallowing and speech motor comp of glosso nerve
parasymp control of carotid gland motor comp of gloss nerve
input from carotid sinus and carotid bodies that monitor blood pressure and blood oxygen levels, respectively sensory comp of glosso nerve
sensory input from part of ear and inner ear, posterior 1/3rd of tongue, and upper pharynx (gag reflex) sensory comp of glosso nerve
taste sensation from posterior 1/3 of tongue sensory comp of glosso nerve
comprises most of the parasym nervous system vagus nerve CN 10
both motor and sensory nerve exits from medulla vagus nerve
smooth muscles and glands in pharynx, larynx, thorax, and abdomen (Parasy nervous system) motor comp of vagus nerve
skeletal muscles in pharynx, larynx, and tongue (not all of them) motor comp of vagus nerve
from all visceral structures innervated by the _; also from blood pressure receptors and chemoreceptors in the aortic arch sensory comp of vagus nerve
part of ear, larynx, and pharynx sensory comp of vagus nerve
motor control of sternomastoid and trapezius muscles in neck spinal accessory nerve CN 11
only motor in this nerve spinal accessory nerve
cell bodies of motor neurons actually are located in upper cervical spinal cord; axons emerge from the cord to form a trunk that ascends to the medulla and then exits the skull with the vagus nerve spinal accessory nerve
motor control of tongue muscles (except one) hypoglossal nerve CN 12
only motor, nerve exits from medulla hypoglossal nerve
Created by: oupharm2012