Lecture 7 - Nervous System

Lecture 7 - Nervous System - TheNervousSystem The Nervous...

Info iconThis preview shows pages 1–39. Sign up to view the full content.

View Full Document Right Arrow Icon
The Nervous System
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Nervous System Central Nervous System (CNS) receives and processes information; initiates action Brain receives and processes sensory information; initiates responses; stores memories; generates thoughts and emotions Spinal Cord conducts signals to and from the brain; controls reflex activities Perifpheral Nervous System (PNS) transmits signals between the CNS and the rest of the body Motor Neurons carry signals from the CNS that control the activities of muscles and glands Sensory Neurons carry signals to the CNS from sensory organs Somatic Nervous System controls voluntary movements by activating skeletal muscles Autonomic Nervous System controls involuntary responses by influencing organs, glands, and smooth muscle Sympathetic Division prepares the body for stressful or energetic activity; “fight or flight” Parasympathetic Division dominates during times of “rest and rumination”; directs maintenance activities
Background image of page 2
The Central Nervous System The brain and spinal cord
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The CNS is well protected
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 16
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 18
Background image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 20
Background image of page 21

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 22
Background image of page 23

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 24
Background image of page 25

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 26
Background image of page 27

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 28
Background image of page 29

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 30
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/22/2009 for the course BIO 309D taught by Professor Jessicawandelt during the Spring '08 term at University of Texas.

Page1 / 39

Lecture 7 - Nervous System - TheNervousSystem The Nervous...

This preview shows document pages 1 - 39. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online