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a & p: exam 3

chapters 12, 13, 14, &15

QuestionAnswer
spinal cord ends at conus medullaris (L1)
___________ neurons are within the CNS
skeletal muscles control voluntary movements
sensory nerves experience pain, touch, and temperature
tencephalon is the same as the cerebrum
gyrus is is the _____ portion risen
sulcus are the areas of depression
the tencephalon contains these two structures cerebral hemispheres corpus callosum
the frontal lobe performs voluntary motor functions
the temporal lobe is responsible for these 2 senses hearing and smell
the frontal lobe contains these 3 functional areas primary motor cortex (precentral gyrus) broca area frontal eye field
the parietal lobe contains the _______ __________ ______ primary somatosensory cortex (postcentral gyrus)
the occipital lobe contains the _______ ______ ______ primary visual cortex
the wernicke's area is in multiple lobes and is responsible for understanding spoken and written language
the diencephalon contains these 2 structures thalamus hypothalamus
the thalamus ______ the information to the _______ ____________ ______ relays; primary somatosensory cortex
the metencephalon contains these 2 structures pons & cerebellum
the myelencephalon contains the _______, which is responsible for ____________ medulla; communication
the brains 3 protective mechanisms meninges cerebrospinal fluid blood-brain barrier
the 3 layers of the meninges are pia mater arachnoid mater dura mater
cerebrospinal fluid contains these 5 properties buoyancy, protection, environment stability, production, and ventricle location
meningitis can either be caused be a _________ or _____ agents bacterial; viral
the 4 main symptoms of meningitis include fever, headache, vomiting, and a stiff neck
meningitis can be spread through respiratory droplets
what type of division transmits impulses from the sensory receptors to the CNS afferent (sensory)
which division transmits impulses from the CNS to the effector organs? efferent (motor)
all neurons have these 3 structures cell body, dendrite, & axon
what are the 3 structural classifications of neurons? pseudounipolar, bipolar, & multipolar
pseudounipolar neurons are __-shaped and they send a continuous ______ _________ T-shaped; action potential
bipolar neurons have __ processes at ____ ___. 2; each end
multipolar neurons are the most ______ and have _______ dendritic extensions & __ axon(s) common; several; 1
what are the 3 functional classifications of neurons? afferent (sensory), efferent (motor), and interneurons (association)
interneurons are found within the ___ and connect ________ and _______ neurons CNS; efferent; afferent
the 4 types of supporting cells found within the CNS are oligodendrocytes, microglia, astrocytes, and ependymal cells
the 2 types of supporting cells found within the PNS are schwann cells & satellite cells
which supporting cell forms myelin sheaths around the axons of CNS neurons? oligodendrocytes
which supporting cell in the CNS migrates around tissue and consumes foreign material microglia
which supporting cell in the CNS regulates the external environment of the neurons? astrocytes
ependymal cells are in the ___ and line the _____ cavities and secrete ____________ _____. CNS; brain; cerebrospinal fluid
which supporting cell forms myelin sheaths around peripheral axons schwann cells
this supporting cell is found within the PNS and supports cell bodies within the ganglia of the PNS, protective, cushioning, nutrients satellite cells
oligodendrocytes can be found within the ___ and wrap ________ axons. CNS; multiple
schwann cells are found in the ___ and wrap __ axon(s) PNS; 1
the action potentials are regenerated down the length of the axon in an ____________ axon unmyelinated
myelin provides __________ and improves _____. insulation; speed
what allows Na+ and K+ to cross the membrane? nodes of ranvier
Created by: bellabarkley
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