Transcript Fight or Flight - Galena Park ISD Moodle

Fight or Flight
Fight or flight video
• What controls
fight or flight?
• What is released
into blood?
How did the loud noise make you feel?
• What reaction did I make?
• What reaction did my neighbor make?
• Quote of the Day:
“People INSPIRE you, or they drain you. Pick them
wisely.” Hansen
Card Sort
• Raise your hand when you are complete
Stimulus
Response
Fight or Flight
When threatened,
many animals display
a fight or flight
reaction.
This reaction releases
the hormone
adrenaline, which
changes the body’s
behavior.
Nose, throat and
lungs widen to
increase oxygen
intake. Breathing
increases.
Heart rate increases
to pump blood
faster
Pupils dilate
to improve
vision
Hairs stand up
to give
impression of
larger size
Blood vessels increase in
size to enable more
oxygen to reach limbs
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Fight or Flight
These changes
prepare the body for
either running away
from the danger, or
engaging in a fight.
Nose, throat and
lungs widen to
increase oxygen
intake. Breathing
increases.
Pupils dilate
to improve
vision
Hairs stand up
to give
impression of
larger size
When faced with a
large predator, an
animal will most likely
run away.
If this is not
possible then the
animal will fight.
Heart rate increases
to pump blood
faster
Blood vessels increase in
size to enable more
oxygen to reach limbs
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Animal Response to Infection
Animals have very sophisticated ways of dealing
with invasions of bacteria and viruses.
When the body
detects the presence
of these invaders, it
recognizes that they
could cause harm.
So the immune system is triggered to
fight the invaders and get rid of them.
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Animal Response to Infection
One way the immune system does this is to raise
the body’s internal temperature, causing a fever.
The increased
temperature makes it
very difficult for the
bacteria or viruses to
reproduce.
Vomiting will often occur too, in an
effort to rid the body of the invaders.
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Elaborate
On your left page you will create a
scenario/story where an organism is reacting
to a stimulus and fight or flight is being
displayed. Your story must also contain how
homeostasis is achieved after the response.
Exit
1. Which of the following would be an example of an organism’s response to the
environment to achieve homeostasis?
A. An adaptation where a hermit crabs uses empty shells in order to prevent drying up.
B. Sun shining on a bright sunny day
C. A plant losing water during a drought since there is lack of rainfall
D. A hermit crab walking on a beach on a hot sunny day during the summer
2. A crocodile quietly stalks its prey, a wildebeest, drinking at a water hole. The wildebeest
suddenly sees the crocodile approaching. The wildebeest’s body responds by –
A shedding thick fur.
B blinking rapidly.
C increasing the heart rate.
D requiring more food.
Question 4
If the Mimosa plant is touched, the leaves quickly
fold and the plant appears to wilt. When it is left
alone, the leaves slowly open up again.
What is most likely to be happening to the plant?
A) It is frightened
B) It is responding to the
external stimulus of touch
C) It is responding to the internal
stimulus of a growth hormone
D) It has died
Next >