Stack #205585
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| Two types of cells that make up neural tissue | neurons and neuroglicial cells
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| The nervous system is divided into two divisons? | CNS and PNS
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| the ? nervous system contains the brain and spinal cord | Central
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| the? nervous system contains the spinal and cranial nerves | Peripheral
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| list 2 divisons of the peripheral nervous system | sensory and motor divison
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| 2 divisions of the motor division | somatic and autonomic
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| which division of the motor division carries impulses to the heart? | autonomic
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| which divison of the motor division carries impules to the skeletal muscles? | somatic
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| Which division of the peripheral nervous system carries impules to the muscles and glands? | motor divison
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| which division of the PNS picks up sensory info and sends it to the CNS? | Sensory division
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| 3 functions of the nervous system | sensory, integrative and motor functions
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| which function uses sensory info. to create sensations, though, memory and decisions | integrative function
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| which function carries impules to effectors? | motor functions
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| Which function carries info to the CNS | sensory
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| Name the two types of matter when discussing myelination of axons | white and grey matter
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| White? Grey? | White= axons grey= dendrites
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| 3 structural types of neurons | bipolar, unipolar, and mulitpolar
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| what is the function of interneurons? | link neurons
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| EfferentAfferent? | Efferent- carries impules away CNSAfferent- carries impules to CNS
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| ___ neruons carry impulses away from CNS | motor
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| ___ neurons carry impulses toward CNS | sensory
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| 6 neuroglial cells in the PNS? | 1. Schawann 2. Satellite 3. Microglia 4. astrocye 5. oligodendrites 6. ependyma
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| sheath of insulation around axon | Schwann Cells
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| Support clusters of neuron cells (ganglia) | Satellite Cells
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| Phagocytic cells? | Microglia
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| Scar Tissue, connect neurons to blood Vessels | Astrocyte
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| Myelinating cells(insulated) | Oligodendrites
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| cilliated, line center of spinal corld | Ependyma
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| Which end of injured axon is the end where growth begins when the axon regenerates? | Proximal
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| During axon regeneration_____ cells produce a new layer of myelin sheath. | Schwann
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| Nerve impules travel from neuron to neuron at junctions called? | Synapse
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| At resting membrane potential the ions are? | Polarized(apart)
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| If a membrane has become more Neg. it has become? | hyperpolarized
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| If membrane has become less Neg. it has become? | depolarized
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| The adding of stimuli to each other is called? | summation
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| When stimuli add up to the point of producing an action potential it is known as? | threshold
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| What is ment by the nervous systems chara. is "all or none responce" | no such thing as a weak impulse
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| What is ment by refractory peroid? | reting peroid between impuless
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| 2 types of refractory peroids? | absolute and relative
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| What is diff. between the two types of refractory peroids? | absoulute= rest peroid and relative= resting but another impulse is soon to happen
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| Name 2 types of synapic potenial | EPSP and IPSP
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| which type of synapic potential increases the likeliness of action potential | EPSP
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Created by:
Mollie28
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