02 -- intro to neurons and glia

02 -- intro to neurons and glia - Cells of the Nervous...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Cells 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
Human Nervous System Overview 2 Main Divisions CNS CNS Brain, Brainstem, Spinal Cord Brain, Brainstem, Spinal Cord Info consolidation / processing Info consolidation / processing PNS PNS Cranial Nerves Cranial Nerves attached to brain/brainstem attached to brain/brainstem Spinal Nerves Spinal Nerves attached to spinal cord attached to spinal cord Pathways into / out of CNS Pathways into / out of CNS
Background image of page 2
Cells of the Nervous System 2 main types of cells: NEURONS Generate and propagate electrical signals GLIAL CELLS • Support neurons in various ways
Background image of page 3

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

View Full DocumentRight Arrow Icon
NEURONS
Background image of page 4
Neurons Common features shared with most other cells: Plasma membrane (phospholipid bilayer) Organelles Nucleus • Endoplasmic reticulum • Cytoskeleton • Mitochondria Many variations in these structures that make them unique in both form and function
Background image of page 5

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

View Full DocumentRight Arrow Icon
Neurons Overview of a “stereotypical” neuron SOMA SOMA (or cell body) Unit containing nucleus, ER, etc. Site of most protein synthesis, other cell fxns
Background image of page 6
Neurons Overview of a “stereotypical” neuron NEURITES (projections extending from soma) NEURITES (projections extending from soma) DENDRITES DENDRITES Multiple Highly branching Branches often contain spines spines Site of communication input from another neuron “Receiving” part of neuron Receiving” part of neuron
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/23/2009 for the course BIOL 450 taught by Professor Jeremyingraham during the Spring '09 term at UNC.

Page1 / 29

02 -- intro to neurons and glia - Cells of the Nervous...

This preview shows document pages 1 - 8. Sign up to view the full document.

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