HaneyNervous2
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each of the black spaces below before clicking
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| What are the two types of cells found in the nervous system? | neurons and glia
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| What are the three main parts of the neuron? | dendrites, cell body, axon
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| What are three types of neurons? | 1.Sensory
2.Motor
3.Interneurons
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| Sensory neurons are also called? | afferent neurons
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| Motor neurons are also called? | efferent neurons
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| Interneurons are only found in what part of the nervous system? | CNS
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| What forms myelin in the CNS? | Schwann cells
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| What forms myelin in the PNS? | Oligodendrocytes
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| What are the indentations between adjacent Schwann cells called? | Nodes of Ranvier
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| What are the supporting cells in the nervous system? | Glia
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| What glia cell forms the Blood-brain barrier? | Astrocytes
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| What glia cell carries out phagocytosis? | Microglia
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| What is a nerve? | A group of Peripheral nerve fibers bundled together
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| What are tracts? | bundles of axon in the CNS
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| What is an example of a two-neuron reflex arc? | Knee-jerk
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| What is an example of a three-neuron reflex arc? | withdrawal reflex
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| What is a synaptic knob located? | at the end of an axon
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| What are the two neurotransmitters that are considered natural pain kills? | endorphins and enkephalins
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| What are the three parts of the brain stem? | Medulla Oblongata, Pons, Midbrain
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| What are the three major structures of the diencephalon? | hypothalamus, thalamus, and pineal gland
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| What are the ridges of the brain called? | gyri
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| What are the grooves of the brain called? | sulci
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| What are the functions of the medulla oblongata? | cardiac, respiratory, and vasomotor control center
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| What are the functions of the pons? | influences respiration
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| What are the function of the Midbrain? | relay for visual and auditory impulses
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| What are the functions of the cerebellum? | muscle coordination, equilibrium, and posture
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| What are the functions of the Hypothalamus? | regulation of body temperature, water balance, sleep cycle, appetite
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| What are the functions of the thalamus? | emotions and alerting
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| What are the functions of the pineal gland? | Adjusts output of melatonin, to keep the bodys internal clock on time
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| What are the functions of the cerebrum? | sensory perception, emotions, willed movements, consciousness, and memory
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| What is the tract called that carries impulses from the spinal cord to the brain? | Ascending tracts
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| What is the tract called that carries impulses from the brain to the spinal cord? | Descending tracts
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| What are the three layers of spinal meninges? | dura mater, pia mater, and arachnoid mater
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| Where does cerebrospinal fluid form? | the choroid plexus
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| How many spinal nerves are there? | 31
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| What is the limbic system called? | emotional brain
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