Title: STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE
1STRESS, FEAR, AND THE FIGHT OR FLIGHT RESPONSE
2FIGHT OR FLIGHT OVERVIEW
AMYGDALA
HYPOTHALAMUS
PITUITARY GLAND
ADRENAL GLAND
THROUGHOUT BODY
3THE HYPOTHALAMUS AND THE PITUITARY GLAND
4INSIDE THE PITUITARY GLAND
5THE BRAIN
- 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)
6THE ADRENAL GLAND AND INSIDE
7EPINEPHRINE SPREADS THROUGH THE BODY
8THE BODY
- 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)
9FIGHT 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)
10WHAT IS FEAR?
11PATHS OF FEAR
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 http//health.howstuffworks.com/mental-h
ealth/human-nature/other-emotions/fear.htm
12SO WHAT DOES THIS RESPONSE LOOK LIKE?
- 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
13ACTIVITY Play the fight or flight
game http//cmhc.utexas.edu/stressrecess/Level_On
e/fof.html