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STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE. FIGHT OR FLIGHT OVERVIEW AMYGDALA HYPOTHALAMUS PITUITARY GLAND ADRENAL GLAND THROUGHOUT BODY.

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Presentation on theme: "STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE. FIGHT OR FLIGHT OVERVIEW AMYGDALA HYPOTHALAMUS PITUITARY GLAND ADRENAL GLAND THROUGHOUT BODY."— Presentation transcript:

1 STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE

2 FIGHT OR FLIGHT OVERVIEW AMYGDALA HYPOTHALAMUS PITUITARY GLAND ADRENAL GLAND THROUGHOUT BODY

3 THE HYPOTHALAMUS AND THE PITUITARY GLAND

4 INSIDE THE PITUITARY GLAND

5 Incoming info into Thalamus Signal sent to Amygdila (decodes emotions) Transmitted to Hypothalamus (Responds by initiation F or F) Hypo. sends nerve impulse down spine Hypo. activates Pituitary gland (Releases Hormone – ACTH) THE BRAIN

6 THE ADRENAL GLAND AND INSIDE

7 EPINEPHRINE SPREADS THROUGH THE BODY

8 Nerve impulse from Hypo./ ACTH both reach Adrenal Nerve impulse signals chromofin cells – Epinephrine ACTH signals cells to produce Cortisol Both chemicals released from Adrenal gland Cortisol raises blood sugar (Frees fatty acids) Epinephrine reaches liver (Increases glucose production – more potential energy – ATP) –Reaches lungs (relaxes muscles/increases respiration (more O2 for muscles) –Reaches Heart (Beats faster – circulates energy faster) THE BODY

9 FIGHT OR FLIGHT OVERVIEW Brain receives/sends signals to pituitary Pituitary releases messengers to Adrenal Adrenal produces Epinephrine and Cortisol Cortisol frees fatty acids/raises sugar Adrenaline increases resp. allows more o2/energy (ATP)

10 WHAT IS FEAR?

11 Thalamus - decides where to send incoming sensory data (from eyes, ears, mouth, skin) Sensory cortex - interprets sensory data Hippocampus - stores and retrieves conscious memories; processes sets of stimuli to establish context Amygdala - decodes emotions; determines possible threat; stores fear memories Hypothalamus - activates "fight or flight" response TEXT FROM PATHS OF FEAR

12 Increase Heart rate Pupils dilate (take in light) Veins in skin tighten – allow flow to major muscles (chills – less blood in skin) Muscles tense (goose bumps) Focus on immediate SO WHAT DOES THIS RESPONSE LOOK LIKE?

13 ACTIVITY: Play the fight or flight game


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