BIOL 1201 Quiz: Cell signaling.docx

• School: LSU
• Department: Biological Sciences
• Course: BIOL 1201
• Professor: W I S C H E U S E N

Document Summary

Paracrine and synaptic signals: cell signaling, direct contact, local, distant. Hormonal signals: stages of cell signaling, reception, transduction, response, responses, nuclear responses, cytoplasmic responses, signal transduction, examples. From cns to effector cell: types of neurons, sensory o. Interneuron: motor, neuron structure, cell body, dendrites, axon, axon hillock, myelin sheath, membrane potentials, all cells have an electrical gradient or electrical potential across their cell membrane, measured with outside being = 0. Inside is generally -50 to -100 mv o: outside the cell. High [] organic molecules (-: k+ diffuse out of the cell, na-k pump pumps ions unequally, action potential. If a depolarization is great enough it will stimulate an action o potential: this involves voltage-gated channels, voltage-gated channels, voltage gated channels. Na: this is then propagated along the neuronal membrane, the formation of an action potential in one location causes a depolarization in the surrounding area triggering an action potential there, speed of propagation.