It acts an insulator on the neurons. The neurons are covered with it and hence the nerve impulses have to jump over the myelin sheath to reach other neurons. This causes nerve impulses to move rapidly from neuron to neuron.
1. Rachel’s prejudice violates the requirements of critical thinking because she didn’t even try to get to know his character and how he is as a person. She has stated that “heavy people tend to be lazy and dishonest.” 2.) her prejudice violates the requirements of critical thinking due to having an opinion about him from the get go. Her views wouldn’t have changed if he was a good or a bad person because of having assumptions like “she would not hire an overweight person or trust one.”