PSY 1101 Lecture Notes - Lecture 2: Telecommunications Network, Fluid Compartments, Extracellular Fluid

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Najwa Haddad

Document Summary

Chapter 2: the biology of mind: the nervous system. Uses to send out messages to muscles and glands: conscious experience. Neurons: basic functions and structure of neurons a. i. Carry order from brain to spine to muscles a. ii. Dendrites => thin tube like structure, branch out of soma a. ii. 2. a. To carry out action potential (electrical impulse) away from soma to end of axon branches. Terminal buttons/ axon terminals => little nobs a. ii. 5. Synapse => where neurons meet to communicate a. ii. 7. Synaptic clef => small distance b. w 2 neurons @ synapse a. ii. 8. Presynaptic neuron => sending messages to other neurons a. ii. 9. Dissolved chemicals including: sodium, chloride, potassium ions (all 3 found outside and inside cell but different concentration levels) protein ions (only inside cell) b. i. 5. Porous => means ions can move in and out of cell b. i. 6. Neuron at rest: -70mv, membrane polarized (inside= higher k+, more negative. Inhibitory => tells neuron to not fire b. i. 8. a.