301 Remember the structures of the nervous system 2 Essential Question What are the structures of the nervous system 301 Remember the structures of the nervous system 3 Introduction Structures of the nervous system ID: 1046339
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1. 3.01 Remember the structures of the nervous system
2. 3.01 Remember the structures of the nervous system2Essential QuestionWhat are the structures of the nervous system?
3. 3.01 Remember the structures of the nervous system3Introduction: Structures of the nervous system
4. 3.01 Remember the structures of the nervous system4Cellular structures of the nervous systemNeuron- a nerve cellExtensions of the neuronDendrites – can have manyAxon – only have one
5. 3.01 Remember the structures of the nervous system5Cellular structures of the nervous systemNeuron- a nerve cellMyelin sheath - a special covering of the axonSynapse – the space between neuronsNeuron VIDEO (draw with him)
6. 3.01 Remember the structures of the nervous system6Structures of the nervous systemCentral nervous systemBrainSpinal cord
7. 3.01 Remember the structures of the nervous system7Structures of the nervous systemPeripheral nervous system consists of Cranial nervesSpinal nervesPeripheral nervous system has two divisions:Autonomic nervous systemSomatic nervous system
8. 3.01 Remember the structures of the nervous system8Structures of the central nervous system: BRAIN
9. 3.01 Remember the structures of the nervous system9Structures of the central nervous system: BRAINCerebrumDivided into two hemispheres (right and left) by longitudinal fissureFrontal lobeParietal lobeTemporal lobeOccipital lobe
10. Structures of the central nervous system: BRAINDiencephalonLocated between the cerebrum and the brainstem StructuresThalamusHypothalamusPineal bodyPituitary gland
11. 3.01 Remember the structures of the nervous system11Structures of the central nervous system: BRAINDiencephalonThalamus Hypothalamus – lies below the thalamus; part of the limbic systemPineal body – endocrine system glandPituitary gland – endocrine system gland
12. 3.01 Remember the structures of the nervous system12Structures of the central nervous system: BRAINLimbic systemCollection of structures in the center of the brainEncircles the top of the brain stem.Composed of the amygdala, hippocampus, cingulated gyrus, and other intricate structures. (Informational only for reference.)
13. 3.01 Remember the structures of the nervous system13Structures of the central nervous system: BRAINCerebellumLocated below the cerebrumCerebellum
14. 3.01 Remember the structures of the nervous system14Structures of the central nervous system: BRAINBrain stemMidbrainPons Medulla oblongata
15. 3.01 Remember the structures of the nervous system15Structures of the central nervous system: BRAINhttps://www.youtube.com/watch?v=wt3qfrlsV_g&t=1s
16. 3.01 Remember the structures of the nervous system16Structures of the central nervous system: Rap:https://www.youtube.com/watch?v=kp4gNgtkQ4I Ice Ice baby: https://www.youtube.com/watch?v=QsftxduyET8 Gagnum Style: https://www.youtube.com/watch?v=6PvS8cWsKyo
17. 3.01 Remember the structures of the nervous system17Structures of the central nervous system: BRAINMeninges – membrane covering brain and spinal cord. Dura materOutermost layer. Lines inside of skull.ArachnoidMiddle layer Cob-web like fluid filled spacePia materInnermost layer
18. 3.01 Remember the structures of the nervous system18Structures of the central nervous system: BRAINVentricles - lined cavities deep within the brainFilled with cerebrospinal fluid (CSF)Choroid plexus – rich network of blood vessels in each of the four ventricles CEREBROSPINAL FLUIDForms inside ventricles of the brainServes as a liquid shock absorber protecting the brain and spinal cord
19. 3.01 Remember the structures of the nervous system19Structures of the central nervous system: Spinal CordMade of a bundle of nerve fibers Surrounded by the vertebrae, meninges, and cerebrospinal fluid
20. 3.01 Remember the structures of the nervous system20Structures of the central nervous system: Spinal CordMade of a bundle of nerve fibers Surrounded by the vertebrae, meninges, and cerebrospinal fluid
21. 3.01 Remember the structures of the nervous system21Structures of the nervous systemPeripheral nervous system has:12 cranial nerve pairs 31 spinal nerve pairs Peripheral nervous system is divided into:Somatic Nervous SystemAutonomic Nervous System
22. 3.01 Remember the structures of the nervous system22Structures of the peripheral nervous systemI. Olfactory II. Optic III. Oculomotor IV. Trochlear V. Trigeminal VI. AbducensVII. Facial VIII. Vestibulocochlear (Accoustic) IX. Glossopharyngeal X. VagusXI. Accessory XII. HypoglossalCranial nerves –originate in brain
23. 3.01 Remember the structures of the nervous system23Structures of the peripheral nervous system31 pairs of spinal nerves (originate in spinal cord)
24. 3.01 Remember the structures of the nervous system24Structures of the peripheral nervous systemPeripheral nervous system Autonomic nervous systemSympathetic nervous systemParasympathetic nervous systemSomatic nervous system
25. 3.01 Remember the structures of the nervous system25 Structures of the peripheral nervous system Autonomic nervous systemSympathetic nervous systemAKA: fight or flight These nerves connect to all internal organsParasympathetic nervous systemAKA: rest and digestThe vagus nerve connects with organs of the upper bodyThe pelvic nerve connects with the organs of the lower body
26. 3.01 Remember the structures of the nervous system26 Structures of the peripheral nervous system Somatic nervous systemThese nerves are located along the spinal cord.Connect skeleton, muscles and joints to the brain.
27. 3.01 Remember the structures of the nervous system27Structures of the nervous systemRemember this!