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nervous
Stack #182866
| Question | Answer |
|---|---|
| neuroglia | support cells for the neurons |
| support cells for the neurons called | neuroglia |
| neuroglia in peripheral nervous system | satellite cells, schwann cells |
| neuroglia in central nervous system | oligodendrocyte, astrocyte, microglia, ependymal cells |
| satellite cells | regulate o2 co2 nutrient level around neurons |
| astrocyte | maintain blood-brain barrier |
| microglia | remove debris, pathogens by phagocytosis |
| ependymal cells | line ventricles of brain |
| 2 sulci in brain | central, lateral |
| central sulcus divides | frontal, parietal |
| lateral sulcus divides | parietal, temporal |
| frontal brain function | high cognitive, planning, strategy, motor |
| parietal brain function | sensory, perception of self in space |
| temporal function | memory, learning, social, hearing |
| occipital function | vision |
| planning | frontal |
| learning | temporal |
| sensory | parietal |
| social | temporal |
| strategy | frontal |
| motor | frontal |
| memory | temporal |
| postcentral gyrus | parietal, sensory |
| precentral gyrus | frontal, motor |
| projection fiber | to and from cortex |
| fiber connecting to and from cortex | projection fiber |
| commisural fiber | connect two hemispheres |
| fiber connecting two hemispheres | commisural fiber |
| intrahemisphric connection fiber | association fiber |
| association fiber | intrahemispheric fiber |
| brain stem | midbrain, pons, medulla |
| midbrain has CN __ attached to it | 3, 4 |
| pons has CN __ attached to it | 5,6,7,8 |
| medulla has CN __ attached to it | 9,10,11,12 |
| major arteries in brain | communicating (posterior, anterior), cerebral artery (posterior, anterior, middle) |
| spinal cord extends to | L1-2 |
| conus medullaris is | where spinal cord ends |
| spinal cord ends at __ region | conus medullaris |
| cell body of afferent or efferent at dorsal ganglion | efferent (sensory) |
| three somatic pathways | 1.Dorsal column 2.Spinothalamic 3.Spinocerebellar |
| Dorsal column cross at | medulla |
| spinothalamic crosses at | spine |
| spinocerebellar crosses at | pons |
| parietal membrane innervated by | somatic nervous system |
| visceral membrane innervated by | autonomic nervous system |
| skeletal muscle innervated by | somatic nervous system |
| number of cervical nerves | 8 |
| number of thoracic nerves | 12 |
| number of lumbar nerves | 5 |
| number of sacral nerve | 5 |
| cell body of afferent present in | dorsal root ganglion |
| cell body of efferent present in | ventral horn |
| nerve organization | axon(endoneurium), fascicle(perineurium), spinal nerve(epineurium) |
| somatic nerve plexuses | brachial, lumbar, lumbosacral plexus |
| path of sympathetic efferent nerve | 1. lateral horn 2. white ramen 3. sympathetic gang chain 4. grey ramen |
| how many axons emerge from CNS for somatic efferent? | 1 |
| which of sympathetic or parasympathetic has shorter postganglionic fiber | sympathetic |
| sympathetic emerge from __ of spinal cord | T1 - L2 |
| parasympathetic emerge from __ of spinal cord | CN 3,7,9,10, S2, S3, S4 |
| initial segment of axon | axon hillock |
| CNS floats in | cerebrospinal fluid |
| different layers of meninges on brain | dura mater, arachnoid mater, pia mater |
| which layer of meninges has a webby appearance | arachnoid mater |
| Red Nucleus found in | Midbrain |
| Substantia nigra found in | Midbrain |
| which neuron in midbrain when degenerated causes parkin's disease | substantia nigra |
| which neuron in midbrain causes flexing of upper body | red nucleus |
| two motor pathways | corticonuclear pathway, corticospinal pathway |
| function of basal nuclei | modulate activity in the corticospinal to ensure coordinated movement |
| neurons for corticospinal pathways originate from | primary motor cortex, primary sensory cortex, premotor+supplementary motor cortex |
| what does corticonuclear pathway control | head, neck |
| what does corticospinal pathway control | limbs |
| axons from left motor cortex control __ side | right |
| which spinal nerve only innervates medial posterior part of body? | dorsal primary ramus |
| which spinal nerve innratees all areas except for medial posterior | ventral primary ramus |
| CN acronyms | old opie occasionally tries trig and feels very gloomy vague and hypoactive |
| only CN to bypass thalamus | olfactory nerve |
| 3 trigeminal nerves | v1-ophthalmic v2-maxillary v3-mandibular |
| CN5 called __ serves as a conduit for parasympathetic CN __, ,,,. | trigeminal, CN 3, 7, 9 |
| parasympathetic CN | CN 3, 7, 9, 10 |
| ganglions in CN5, Which nerve do they synapse with | ciliary-CN3 pterygopalatine-CN7 otic-CN9 submandibular-CN7 |
| general sensation to 2/3 anterior tongue | V3 of CN5 |
| facial nerve branches into | ten, zebra, bit, my, cat |
| CN7 attached to | pons |
| CN3 attached to | midbrain |
| CN10 attached to | medulla |
| CN8 attached to | pons |
| post gang nerve of ciliary is __ and it controls | CN3, pupil constriction |
| post gang nerve of pterygopalatine is __ and it controls | CN7, lacrimal gland |
| post gang nerve of otic is __ and it controls | CN9, parotid gland |
| post gang nerve of submandibular is __ and it controls | CN7, submandibular, sublingual |
| ciliary ganglion part of which nerve | V1 of CN5 |
| pterygopalatine gnaglion part of which nerve | V2 of CN5 |
| V1 is called | ophthalmic |
| otic ganglion part of which nerve | V3 of CN5 |
| submandibular ganglion part of which nerve | V3 of CN5 |
| V2 is called | maxillary |
| V3 is called | mandibular |
| taste to anterior 2/3 of tongue | VII-facial nerve |
| which CN important for gag reflex | CN9, CN10 |
| sensory to posterior 1/3 tongue | CN 9 |
| taste to posterior 1/3 tongue | CN 9 |
| movement of tongue | CN 12 |
Created by:
honghee
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