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54 Cards in this Set
- Front
- Back
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cns contsitutes what
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brain and spinal chord
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pns consists of what
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cranial nerves and spinal nerves, ganlia and sensory recpetors
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left hemisphere of brain does what
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language and speech (biz)
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right hemispehere does?
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abstract and concept (art)
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Pia matter what?
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covering of brain
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Cortex
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outer mater (grey)
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Gyri
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elevated ridges of the brains
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Sulci
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shallow grooves (for blood vessels)
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Fissuers
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deep grooves
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longitudinal sulcus
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separates lft/rt hemispheres
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centeral sulcus
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saparates frontal from parietal lobes
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motor functions what part of the brain
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frontal lobe
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frontal lobe does
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motor functions
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sensory functions what part of brain
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parietal lobe
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pre central gyrus , where, wht sensory?
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infront of central sulcus, speech and vol. muscle
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pre frontal cortex, wht and where
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intellect, complex reasoning,personality anterior portin of frontal lobe
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occipital lobe what controls
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vision
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temporal lobe, what does it do
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hearing
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olfactory bulbs and tracts what does it do
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smell
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optic nerve what it do
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vision
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optic chiasma what is it
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where medial optic fibers cross
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optic tract where
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after the chiasmia,
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pituitary gland
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hormomnes
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infandibulim
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connects the pituitary and the thalmus
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Pons where/ what
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raised area after the penduncles (primary motor and sensory)
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medula oblongata where
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lowest brain stem region
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corpus callosumwhere /what
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connects rt and left hemispheres, forms top or lat ventricles
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chorid plexus
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bundle of capilaries in ventricles
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fornix
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makes floor of the lat vent. also involved in olfaction and limbic (emotions)
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thalmus
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bi-lobed, gray matter, relay station for sensory pulses passing up
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hypo-thalmus
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autonomic control center, ex. temp/ water balance
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pineal body
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secrets melatonin (sleep)
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superior colliculi
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visual reflex center
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inferior colliculi
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auditory center
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cerebral aquaduct
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slender cannal connects 3rd and 4th ventricles
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arbor vitae fo cerebellum
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tree of llife, whit matter in the cerebellum
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arachnoid matter
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middle menengies
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pia matter
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delicate inner most layer next to the brain
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circulation of the CSF
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1) lateral ventricles 2)intraventricular formation 3) third vent. 4)cerebral aquaduct 5) 4th vent. 6) CAN SPLIT central canal of spinal cord or medial/lateral appetures (russian holes) into sub arachniod space, arachnoid vili, sinus cappilaries, venus blood
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olfactory nerve
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smell (looks like rabbit ears)
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optic nerve
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vision (on the X) TOP
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ocular motor nerve
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eye movement; next down from the optic nerve jsut past the optic tract
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trochlear nerve
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eyemovement (thin round nerve on peduncle) down low from pons
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trigeminal nerve
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chewing (off of the pons)
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adducens nerve
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eye movement (tiny round nerves off surface of the medulla) last one down centered under the optic tract
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poly synaptic neurons
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have one or more inter neurons
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sensory neurons
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affereant neurons carrying messages to the brain
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motor neurons
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efferent carrys messages from brain to muscles
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contra- lateral
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stimulus one side response on opposite side
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ipsilateral
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stimulus and reaction on the same side
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4 types of relflex arc
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mono synaptic
poly synaptic contra lateral ipsilateral |
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prupose of three layers of meninges
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cover and protect brains
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outer layer ( meninge)
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dura matter leathery double layered membrane
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middle layer (meninge)
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arachnoid matter has thread like projections to attatch it to the pia mater
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