1. S.A.M (Sympathetic Adrenal-medullary Pathway)
· This is the acute (immediate) response to stress
· Cortex detects a stressor which triggers the Hypothalamus,
· Then Sympathetic branch of the Autonomic nervous system is activated through the nervous system, stimulating the Adrenal Medulla, producing two hormones:
· Adrenaline-increases heart rate for oxygen
· Noradrenaline –sugar for energy.
· This cause the Fight or Flight response, which causes bodily changes such as increase in heart rate (to carry around oxygen around the body quicker); an increase in blood pressure (veins and arteries narrow so blood pumps faster); an increase in muscle tension (which increases reaction time) and the dilation of pupils (helps one to be more aware of one’s surroundings).
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