ANP 1106 Lecture 15: Neurophysiology

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Balwant Tuana

Document Summary

You have to be aware of everything going around in your body and the environment and you need to have a safe passage through. The ns allows us to interact with our environment. Cns brain and spinal cord and it needs info from the environment. There are sensory receptors in the skin will send the signal to the peripheral nervous system to the cns to be perceived. How an electrical ap is transferred across the cell making a chemical transmission (neurotransmitters) Ap: huge change of voltage across the membrane; usually it is -70 mm volts and it creates a wave that is generated and propagates down to the terminal. When it depolarizes the membrane the calcium channels open up and are selective for calcium. There is a large change across the voltage in the membrane and it will detect it and it will be detected by the voltage gated channels.