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NERVOUS 101 Kayla King Lauren Mills. Importance Sends messages throughout the body. –5 senses.

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Presentation on theme: "NERVOUS 101 Kayla King Lauren Mills. Importance Sends messages throughout the body. –5 senses."— Presentation transcript:

1 NERVOUS 101 Kayla King Lauren Mills

2 Importance Sends messages throughout the body. –5 senses

3 Components Central –Brain –Spinal cord Peripheral –Somatic –Autonomic Parasympathetic Sympathetic

4 Anatomy physiology Brain is divided into diff. Sections – cerebral hemispheres Frontal Temporal Parietal occipital –Diencephalon – Midbrain – Pons – Medulla Oblongata –Cerebellum fr

5 CENTRAL Consist –Spinal cord –Brain –White matter axons –Grey matter cell bodies Branched dendrites

6 Central nervous system

7 Peripheral NS Consists –Sensory nerves Sends info to spinal cord and brain –Motor nerves Carries messages from sc and b to other body parts Subdivided –Sensory-somatic NS –Autonomic NS

8 Peripheral

9 Sensory-Somatic NS Consists of –Sensory division (afferent division) Receives signals from nerves and tissues Sends to cranial and spinal nerves –Motor division (efferent div.) Contains pathways from spinal cord and brain stem to lower neurons in spinal and cranial nerves

10 Sensory-Somatic Nerves 12 pairs of cranial nerves 31 pairs of spinal nerves

11 SOMATIC

12 Ans Consists of –sensory neurons and motor neurons that are in the CNS and organs –Two subdivisions sympathetic nervous system parasympathetic nervous system Involuntary actions Uses two groups of motor neurons –preganglionic neurons –postganglionic neurons

13 AUTONOMIC

14 Sympathetic Involuntary For Stress http://www.bbc.co.uk/sci ence/humanbody/body/in dex_interactivebody.shtm l

15 Parasympathetic Involuntary For Rest http://www.bbc.co.uk/science/humanbod y/body/index_interactivebody.shtml

16 Diseases/disorders Alzheimer disease Huntington disease Multiple sclerosis Parkinson disease Wallenberg syndrome Wilson disease

17 Effects of drugs/alcohol

18 Alcohol

19 Caffeine

20 Works cited http://www.uclan.ac.uk/ldu/resources/multi media/visualization/visualization- animations.htmhttp://www.uclan.ac.uk/ldu/resources/multi media/visualization/visualization- animations.htm http://science.nhmccd.edu/BioL/ap1int.htm #brainhttp://science.nhmccd.edu/BioL/ap1int.htm #brain http://casweb.cas.ou.edu/pbell/Histology/Outli ne/nerve.html


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