2007-09-27

2007-09-27 - 2007-09-27Glial CellsGlial cells actually...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon

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

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

Unformatted text preview: 2007-09-27Glial CellsGlial cells actually outnumber neurons in some parts of the brain5 different types of neurons and even more functionsGlial AstrocytesoProvide support for the neuronoAttach to the neuron and blood vessel to create the blood-brain barrieroTransfer waste from neurons to blood vesselsMicrogliaoInvolved in repair of brain tissueoInvadeareas of dead neurons to remove the debrisSchwaan Cells (see right)Movement of the Action Potential (nerve impulse) and the Nodes of RanvierMyelin insulates much of axonSaltatory jumping or dancing conduction of the APDescartes: The Brain-Behaviour ConnectionA single long nerveSherrington proved wrongIdentified 3 basic processesoDetectionoDecisionoResponse3 types of Neurons correspond to Descartes theory:oSensory: carry input messages from sense organs to spinal cord and brainoInterneuron: connective or associative functions in the nervous systemoMotor: transmit impulses from brain and spinal cord to muscles and...
View Full Document

Page1 / 6

2007-09-27 - 2007-09-27Glial CellsGlial cells actually...

This preview shows document pages 1 - 4. Sign up to view the full document.

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