Nervous System
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31 terms
Terms | Definitions |
|---|---|
 Neuroglial Cells | Cells that perform support functions for nerves. |
| Somatosensory | Somato motor Sensation of the muscle activity/Sensory Motor |
| How many Cranial Nerves do you have? | 12 |
| Sympathetic | Fight/Flight |
| Parasympathetic | Rest and digest "Eat food and fall asleep" |
| Enteric | Nervous system dedicated to the digestive trac |
| What is the meaning of Grey Matter | Nerve Cell body |
| Axon: Hillock | Where action potential starts |
| Axon: Terminals | End of Axon |
| Axon: Myelin Sheath (White Matter) | Fatty insulation around Axon and Dendrite |
| Axon: Schwann | Produce Myelin Sheath aka neurolemma cells in the PNS |
| Axon: Neurolemmal cells | Outer most layer of the Myolin sheath |
| Axon: Nodes of Ranvier | naket spot in the Axon. Non Mylated gaps |
| Gliocyloma | Brain Cancer. Glio cell out of control |
| Encephalitis | Infection for nerve cells in brain tissue |
| Meningitis | Inflammation of the menniges |
| Hydrocephalus | Water on brain. Blockage of duct system |
| Microglial cells | small cells that phagocytize bacterial cells and cellular debris |
| Ependymal Cells | Occur in clusters called Choroid Plexus. Produce cerebreal spinal fluid (CSF). CSF bathes the CNS |
| Astrocytes | Form blood barrier |
| Oligodendrocytes | Make myelin sheath within the CNS |
| Meninges | 3 Layers of tissue which surround the CNS. 1. Dura Layer - Tough Layer 2. Arachnoid- Middle Layer 2a. Subarchnoid-Area between Pia and Arachnoid contains fluid 3. Pia- Intimately attached to CNS |
| Types of Meningitis and treatment | Bacterial -Antibiotics Viral - Pallative care. |
| Symptoms of Meningitis | Fever/Head aches/ light sensitive/lifting head causes pain |
| Lateral Grey Horn | Where sympathetic nerve cell bodies are located (T1-L2 |
| Pre Ganglionic neurotransmitters secret what? | ACH |
| Post Ganglionic neurotransmitters secret what? | ACH and Epinephrine |
| Adrenal Medulla | Fight/Flight - Secret adrenaline. Combination of epinephrine and norepinehrine |
| Alpha receptors react to what? what do they do? | React to Norepinephrine and regulate blood vessel dialation. |
| Beta receptors react to what? what do they do? | React to Epinephrine. Reduce the heart pump. |
| SSRI | Selective Serratonin Reuptake Inhibitor. Decreases rate of Serratonin break down in brain. Makes serratonin last longer. |
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