Upload
oscar-chandler
View
224
Download
1
Tags:
Embed Size (px)
Citation preview
DENDRITES
CELL BODY AXON
MYELIN SHEATH
GLIAL CELL/ GLIA
NODE OF RANVIER
a cell that aids in the support of a neuronGLIAL CELL
CNS PNS
SCHWANN CELLSOLIGODENDROCYTEASTROCYTE
•wraps around the axon of neurons in the PNS•multiple Schwann Cells in a row form the Myelin Sheath•provides insulation -> action potential travels faster by jumping to the Ranvier nodes between Schwann cells
SCHWANN CELL
https://www.youtube.com/watch?v=vBzV7pOtze4
a cell that aids in the support of a neuronGLIAL CELL
CNS PNS
SCHWANN CELLSOLIGODENDROCYTEASTROCYTE
•provides myelin insulation to multiple axons of neurons in the CNS
OLIGODENDROCYTE
•star-shaped glial cells that anchor neurons to their blood vessels•plays an important role in the Blood Brain Barrier
ASTROCYTE
•semi-permeable membrane separating the brain from the blood•helps maintain homeostasis for the brain•protects the brain from foreign substances•O2, CO2, glucose, alcohol, various hormones are among the few substances that can pass through the BBB
BLOOD BRAIN BARRIER
Research:-Aneurysm-Alcohol Intoxication-Stroke-Multiple Sclerosis-Meningitis-Alzheimer’s Disease
How does it affect neurons? -> What are symptoms?2min Presentations Monday