NEUR 1201 Lecture Notes - Lecture 6: Hans Selye, Adrenal Medulla, Sympathetic Nervous System
26 Oct 2016
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Document Summary
2 pathways involved in stress: the sam axis: the fast pathway. Hypothalamus spinal cord pair up with neurons of sympathetic nervous system adrenal medulla release of epinephrine and norepinephrine: hpa axis: the slow pathway. Hypothalamus release corticotrophin anterior pituitary crh stimulates the ap to release adrenocorticotropic. Acth stimulates the release of cortisol from adrenal cortex. Stress: can promote personal growth or self improvement. Yerkes dodson law: too little or too much stress can affect performance. Vicious cycles of stress and therefore damage can occur. The stress response temporarily puts the brain and body into an overdriven state. At the time of stress, body suspends bodily repair, construction and growth. This conserves energy to deal with the stressful situation. Major stressors can cause minor stressors to occur. Daily routine stress can cause health problems. Stress is higher in today"s society than it ever has been before.
