PSYC 4034 Chapter : PSYC 4034 090414
Document Summary
Reflex: neuron types: the dorsal surface is where the sensory part of spinal nerves are entering, motor neurons secrete or contract. Glial cells ( nerve glue neuroglia: more numerous than neurons, physical support hold the nervous system together, can transport nutrients through themselves. They envelope blood vessels and transport material"s from it. If the axon is severed, the schwann cells stay in place creating a tube. They do not have pores like other capillaries in the body. Neurons are cells that have an electrical charge. What makes them unique is that they use their electrical charge to communicate. They can generate electricity and they can conduct electricity. Measuring nerve cell resting membrane potential: giant squid axon, microelectrode inserted into axon, record the activity of an individual neuron. Resting membrane potential: rmp is a balance of two opposing forces, concentration gradient (force of diffusion) he gives an explanation for why salt or sugar will dissolve in water.
