1 / 7

Nervous System 06/01/12 pages 159-160

Nervous System 06/01/12 pages 159-160. Know: What are the 3 functions of the nervous system?. Receiving info – inside and outside body Responding to info – reaction to stimulus (change/signal) Maintaining homeostasis Neurons (nerve cells) carry nerve impulses (electrical or chemical

jerrod
Download Presentation

Nervous System 06/01/12 pages 159-160

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Nervous System06/01/12pages 159-160 Know: What are the 3 functions of the nervous system?

  2. Receiving info – inside and outside body • Responding to info – reaction tostimulus(change/signal) • Maintaining homeostasis Neurons(nerve cells) carry nerve impulses(electrical or chemical messages) Functions Process

  3. Impulses begin in dendrite, move toward cell body, then down axon. Carries impulse toward cell body Carries impulse away from cell body (Draw picture/label below) Process Dendrite Axon

  4. Axons & Dendrites

  5. Brain receives message and sends impulses to muscles. Impulses are passed from one nerve to another or to an organ through chemicals that jump the synapse(gap between nerve cells) Process

  6. Types Reflex • Central–control center of body, brain and spinal cord • Peripheral – carries impulses between central nervous system and rest of body • Somatic nervous system – controls voluntary actions (texting) • Autonomic n.s. – controls involuntary actions (heart beat) Automatic involuntary response to danger. Ex: your arm pulls back if you touch something hot

  7. Evidence & SummaryEvidence: TB page 633, Draw, label, color

More Related