Anatomy

Neural Tissue

Neuroglia of the CNS Oligodendrocytes,

Astrocytes, Ependymal Cells,

Microglia

Neuroglia of the PNS Schwann Cells (neurolemmocytes), Satellite Cells

Neurophysiology

Resting Potential Chemically Gated Channels

Voltage-Gated Channels

Mechanically Gated Channels

Graded Potentials

Neurophysiology Action Potential

Continuous Conduction

Saltatory Conduction Synaptic Activity Information Processing

• Also called Lockjaw • Described by Hippocrates in the 5th century BC • Caused by the bacterium Clostridium tetani • One of the deadliest toxins known • Just a few bacteria can make enough toxin to cause

tetanus - muscle spasms beginning in the jaw then through the body, strong enough to cause bone fractures

• No natural immunity, no cure, only prevention! • Vaccine developed in 1924

So What? What is Tetanus?

So What? What is Tetanus?