Nervous system review - ch 6 a-c

Nervous system review - ch 6 a-c - Chapter 6 Neuronal...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
A typical neuron has a dendritic region and an axonal region. The dendritic region is specialized to receive information whereas the axonal region is specialized to deliver information. Communication by neurons is based on changes in the membrane’s permeability to ions. Two types of membrane potentials are of major functional significance: graded potentials and action potentials. Chapter 6 Neuronal Signaling and the Structure of 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 two major divisions in the nervous system are the central nervous system (CNS) and the peripheral nervous system (PNS). Within the PNS, major divisions are the somatic nervous system and the autonomic nervous system, which has two branches: the parasympathetic and the sympathetic branches. Chapter 6 Neuronal Signaling and the Structure of the Nervous System (cont.)
Background image of page 2
Dendrites: receive information, typically neurotransmitters, then undergo graded potentials. Axons: undergo action potentials to deliver information, typically neurotransmitters, from the axon terminals.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Among all types of neurons, myelinated neurons conduct action potentials most rapidly. Oligodendrocytes form myelin on central neuronal axons.
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/12/2012 for the course BMED 3110 taught by Professor Staff during the Spring '08 term at Georgia Tech.

Page1 / 31

Nervous system review - ch 6 a-c - Chapter 6 Neuronal...

This preview shows document pages 1 - 5. Sign up to view the full document.

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