Physiology - Neurophysiology Exam 04 Part 02
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| divisions of gray matter are? | dorsal horn, ventral horn, intermediate region
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| dorsal horn is? | sensory
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| ventral horn is? | motor
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| intermediate region contains? | interneurons
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| touch input from lower half of body; part of dorsal columns | gracile fasiculus
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| fine motor control | lateral corticospinal tract
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| proprioceptive input from body to cerebellum | spinocerebellar tract
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| pain and temperature input from body | spinothalamic tract
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| postural motor control | vestibulospinal and reticulospinal tracts
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| touch input from upper half of body; part of dorsal columns | cuneate fasiculus
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| motor input to upper limbs | rubrospinal tract
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| dorsal columns consists of? | gracile and cuneate fasiculus
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| balance and equilibrium conrolled? | spinocerebellar tract
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| baroreceptor reflex and taste system associated with? | solitary nucleus and tract
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| carries sensory info from face and conveys pain associated with? | spinal trigeminal nucleus and tract CN 5
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| parasympathetic, preganglionic neuron | dorsal motor nucleus of vagus CN 10
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| connects to brainstem | inferior cerebellar peduncle
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| eye movements associated with? | abducens nucleus and nerve CN 6
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| controls facial movements | facial nucleus and nerve CN 7
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| path in auditory system | lateral lemniscus
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| tell if something is on the R or L side of body | superior olivary nucleus
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| auditory associate with? | trapezoid body
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| transmit touch info | trigeminal main sensory nucleus CN 5
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| chewing muscles | trigeminal motor nucleus CN 5
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| micturition reflex associate with? | periaqueductal gray
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| basal nuclei fx degeneration causes parkinsons | sustantia nigra
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| eye movements | trochlear nucleus CN 4
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| moves 4 of 6 eye muscles, parasym ganglions | oculomotor nucleus and nerve CN 3
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| vision fx | superior colliculus
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| emotions | amygdala
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| basal ganglia | caudate nucleus
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| limbic system | fornix
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| memory | hippocampus
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| major byway sensory info to cortex | internal capsule, posterior limb
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| limbic system | mammillary body
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| basal ganglia | substantia nigra
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| receives info from body | ventroposterior lateral nucleus
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| recieve info from face | ventroposterior medial nucleus
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| this is nerve is the sense of smell, it only sensory (afferent) | olfactory nerve
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| 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
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| contains cell bodies of secondary sensory neurons, whose axons comprise the olfactory tract. | olfactory bulb
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| conveys olfactory information to olfactory cortical areas | olfactory tract
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| this nerve is for the sense of sight and is only sensory | optic nerve
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| what are the primary sensory neurons of the optic nerve? | photoreceptors in retina of eye transmit visual information to bipolar cells in retina
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| where do the bipolar cells synapse? | on ganglion cells, whose cell bodies are also in the retina
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| what are the secondary neurons of the optic nerve | ganglion cells
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| axons of __ leave the eyeball to form the optic nerve | ganglion cells
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| innervation of eye muscles done by? | oculomotor nerve
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| has both motor and sensory neurons | oculomotor nerve
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| this nerve exits from the midbrain | oculomotor nerve
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| the optic nerve innervates these 4 of 6 eye muscles | superior rectus, medial rectus, inferior rectus, and inferior oblique
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| eye movement toward nose by medial rectus | adduction
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| move eye down by _ and helped by _ | inferior rectus, superior oblique CN 4
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| move eye up by _ and _ | superior rectus, inferior oblique
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| innervates _ that elevates upper eyelid (so we can look up without eyelid getting in the way) | levator palpebrae superioris
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| 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
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| innervation of the superior oblique eye muscle | trochlear nerve CN 4
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| efferent and afferent for innervation of superior oblique eye muscles | trochlear nerve
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| this nerve exits from the caudal midbrain | trochlear nerve
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| moves eyeball down and lateral, causes inward rotation of eyeball | trochlear nerve
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| _ is the only cranial nerve that exits dorsally , and is the only one that crosses | trochlear
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| seonsory component from muscle receptors, similar to oculomotor | trochlear nerve
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| has parasympathetic component - arises from edinger-westphal nucleus (part of _ nuclear complex) | oculomotor nerve
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| preganglionic neurons project to ciliary ganglion in this nerve | oculomotor nerve
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| postganglionic fibers innervate constrictor pupillae muscle to constrict pupil, and ciliary muscle to change shape of lens in this nerve | oculomotor nerve
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| this nerve has sensory information from face, and motor control of chewing muscles | trigeminal nerve
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| this nerve has both afferent and efferent, nerve exits from pons | trigeminal nerve
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| _ arises from pons and courses to the _ ganglion, which contains cell bodies of sensory fibers. 3 major divisions of this leave the ganglion | trigeminal
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| sensory input from eye, orbit, forehead, ethmoid (roof of nasal cavity) and frontal sinuses | ophthalmic (V1) of the trigeminal nerve
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| sensory input from maxilla (upper jaw) and overlying skin, nasal cavity, palate, nasopharynx, and part of meninges | maxillary V2 of the trigeminal nerve
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| sensory input from mouth, lower jaw, and anterior 2/3rds of tongue. motor outflow to chewing muscles | mandibular V3 of trigeminal nerve
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| name the 3 divisions of the trigeminal nerve | V1 ophthalmic, V2 maxillary, V3 mandibular
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| pain and temp (secondary sensory neurons) associated with this nerve | spinal trigeminal nucleus
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| touch sensation (secondary sensory neurons) | trigeminal main sensory nucleus
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| cell bodies of primary sensory neurons that transmit information from chewing muscles | trigeminal mesecephalic nucleus
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| cell bodies of motor neurons that innervate chewing muscles | trigeminal motor nucleus
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| this nerve innervates lateral rectus of eye muscle | abducens nerve CN 6
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| has both afferent and efferent , exits at pontomedullary junction | abducens nerve
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| moves the eyeball laterally (abduction) | abducens nerve
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| sensory component from muscle receptors, similar to oculomotor | abducens nerve
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| motor control of muscles of facial expression, and taste from this nerve | facial nerve, CN 7
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| both afferent and efferent, nerve exits at pontomedullary junction | facial nerve
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| somatic motor control of muscles of facial expression is the motor component of this nerve | facial nerve
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| visceral parasympathetic motor control of salivary glands (except parotid), lacrimal gland, and mucus glands of this nerve | facial nerve
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| sensory input from skin on lower part of ear and behind the ear in this nerve | facial nerve
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| 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
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| auditory and vestibular information | vestibulocochlear nerve
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| only afferent ; nerve exits at pontomedullary junction, just lateral to facial nerve | vestibulochochlear nerve
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| hair cells in cochlea transmit information onto primary sensory neurons in this nerve | auditory component of vestibulocochlear nerve
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| primary sensory neurons exit the cochlea, from CN 8 and terminate in the cochlear nuclei in the brainstem | auditory component of vestibulocochlear nerve
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| hair cells in semicircular canals, saccule, and utricle transmit information onto primary sensory neurons | vestibular comp of vestibulocochlear nerve
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| primary sensory neurons exit the structures, form CN 8, and terminate in the vestibular nuclei in the brainstem | vesibular comp of vestibulocochlear nerve
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| nerve associate with taste and chewing | glossopharyngeal nerve CN 9
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| both motor and sensory, nerve exits from medulla | glossopharyngeal nerve CN 9
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| innervates a muscle involved in elevating the pharynx during swallowing and speech | motor comp of glosso nerve
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| parasymp control of carotid gland | motor comp of gloss nerve
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| input from carotid sinus and carotid bodies that monitor blood pressure and blood oxygen levels, respectively | sensory comp of glosso nerve
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| sensory input from part of ear and inner ear, posterior 1/3rd of tongue, and upper pharynx (gag reflex) | sensory comp of glosso nerve
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| taste sensation from posterior 1/3 of tongue | sensory comp of glosso nerve
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| comprises most of the parasym nervous system | vagus nerve CN 10
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| both motor and sensory nerve exits from medulla | vagus nerve
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| smooth muscles and glands in pharynx, larynx, thorax, and abdomen (Parasy nervous system) | motor comp of vagus nerve
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| skeletal muscles in pharynx, larynx, and tongue (not all of them) | motor comp of vagus nerve
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| from all visceral structures innervated by the _; also from blood pressure receptors and chemoreceptors in the aortic arch | sensory comp of vagus nerve
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| part of ear, larynx, and pharynx | sensory comp of vagus nerve
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| motor control of sternomastoid and trapezius muscles in neck | spinal accessory nerve CN 11
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| only motor in this nerve | spinal accessory nerve
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| 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
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| motor control of tongue muscles (except one) | hypoglossal nerve CN 12
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| only motor, nerve exits from medulla | hypoglossal nerve
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