Term
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Definition
subcategory of Peripheral Nervous Sytstem. Recieves and responds to sensory information. Thought processes |
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Term
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Definition
subcategory of Peripheral Nervous System Automatic Do not require thought |
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Term
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Definition
| Involved in transfering information from periphery to CNS |
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Term
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Definition
| Attached to muscle fibers |
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Term
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Definition
| intergration between sensory and motor |
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Term
| What are the 3 types of Processes? |
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Definition
Bipolar: Dendrite and Axon Multipolar: Lots of Dendrites Pseudpolar: looks like one long process |
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Term
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Definition
Stains for RER and Ribosomes. Axon does not stain!!!!! |
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Term
| What makes up the cytoskeleton of a neuron? |
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Definition
Microtubules: microtubule-association proteins (MAPs) -MAP2:Dendrites -MAP3:Axons Neurofilaments(intermediate) Microfilaments |
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Term
| What organelles are found in the Soma of a neuron? |
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Definition
Mitochondria RER/SER Secretory vesicles/endosomes Golgi |
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Term
| What is the Dendrite Spine? |
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Definition
| Little projections off of the dendrites that are the location of synapes. |
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Term
| What organelles do the Axon of the neuron have? |
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Definition
Mitochondria SER Synaptic Vesicles |
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Term
| What is the initial segment of the Axon? |
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Definition
Where the potentials are initiated. Located right after the Axon Hillock |
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Term
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Definition
They myelinate the Peripheral Nervous System one sheath at a time. |
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Term
| What are Oligodendrocytes? |
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Definition
Myelinates the Central Nervous Sytstem many sites at a time. Considered a type of Glia |
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Term
| Are Myelinated or Non-Myelinated axons associated with Schwann cells? |
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Definition
Both are. Schwann cell just dont myelinate some. |
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Term
| Gray matter vs. White Matter |
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Definition
Gray matter is unmyelinated. White matter is myelinated and has a shiny appearance |
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Term
| Does the axon size of Myelinated and Unmyelinated differ? |
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Definition
Yes. Myelinated is longer |
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Term
| What is a symptom of Demyelination? (myelin basic protein(MBP) being removed) |
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Definition
Weakness in muscles Shivering Can be helped with gene therapy |
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Term
| Axoplasmic Transport (Anterograde vs. Retrograde) |
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Definition
Anterograde: Away from the soma. Kenisin Retrograde: To the soma. Dynein |
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Term
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Definition
How many does one axon intervate. (single neuron and axon) The smaller the motor unit, the better the control. Extra occular muscle has the smallest. |
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Term
| What are Glias and the different categories? |
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Definition
Non neuron nerve support cells. Oligodendrocytes Astrocytes Microglia Ependyma |
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Term
| What are Atrocytes? Different Categories? |
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Definition
Type of Glia. Hold things together Fibrous: thin processes. White matter Protoplasmic: thick processes. Gray matter |
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Term
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Definition
| Glia cells that are similiar to Macrophages. |
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Term
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Definition
Type of Glia cell Single row of cells that line the Lateral Ventricles of the brain. |
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Term
| Endonurium, Perinurium, Epinurium |
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Definition
Endonurium: fibroblasts lay down CT that hold axons together. Perinurioum: Bundles of Endonurium Epinurium: Bundles of Perinurioum |
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Term
| Dorsal Root Ganglion vs. Sympathetic Ganglion |
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Definition
Dorsal Root: Autonomic NS. Cells are close together. No synapses Sympathetic: Sympathetic NS. Cells not close together. Synaptic activity. |
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Term
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Definition
Gut nervous system. Myenteric Plexus: cause peristalsis |
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