Nyra was on her way back home late at night. The roads were
deserted and there was nobody in sight. After walking a short distance,
she saw two men approaching her from the other side. Her body
prepared itself for the fight or flight response. However when they
reached her, they asked for help with an address.
Describe the physiological changes –
a)when her body prepared itself for fight or flight.
b)when she realized that it was no threat to her.
Mention the parts of the nervous system responsible for the same.(
Answers
Answer:
What Happens During the Fight-or-Flight Response. In response to acute stress, the body's sympathetic nervous system is activated by the sudden release of hormones. The sympathetic nervous system then stimulates the adrenal glands, triggering the release of catecholamines (including adrenaline and noradrenaline).The "recovery period" between a fight or flight response and normalization of body functions is variable but often lasts for 20 to 60 minutes following stimulation if the perceived threat disappears.Fight or flight' vs.
Pressure increases because blood vessels constrict under sympathetic stimulation. The parasympathetic division directs the body toward a “rest or digest” mode, generally decreasing heart rate and blood pressure.Exercise is therefore a simple and effective way to calm the nervous system. It not only uses the energy created in the body, it metabolises (breaks down) excess stress hormones. Lower levels of stress hormones mean a calmer body and mind.Nyra was on her way back home late at night. The roads were
deserted and there was nobody in sight. After walking a short distance,
she saw two men approaching her from the other side. Her body
prepared itself for the fight or flight response. However when they
reached her, they asked for help with an address.
Describe the physiological changes –
a)when her body prepared itself for fight or flight.
b)when she realized that it was no threat to her.