NEUR 1203 Lecture Notes - Lecture 2: Spinal Nerve, Limbic System, Cingulate Cortex

• School: Carleton University
• Department: Neuroscience
• Course: NEUR 1203
• Professor: Ashley Thompson

Document Summary

Csf: not everything is allowed in, which is great, how does it work, normal capillaries in your body has these pore that allow thing through. In the brain these pores do not exist, the cells in these capillaries are much closer together. Integrates information; decides whether or not to pass it on: axon hillock, axon. Interneurons: only found in cns; most numerous of all neuron types in brain. In the sc, located between sensory and motor neurons. Integrate info from sensory neurons (and other interneurons) before passing it on to motor neurons. Involved in reflexes and highest functions of the brain: let"s put all three together to understand this example of a withdrawal reflex, sensory neuron info from outside world to sc/brain, fire hot! Interneuron connects sensory and motor neuron in sc: fire hot, pass it on, motor neuron uses info to cause muscle contraction, stop touching it then, ouch!