HOMEOSTASIS
What is homeostasis?
 When your body is in homeostasis, values like pH, heart beats and temperature are called
 To maintain homeostasis the body involves a number of systems to keep our bodies in balance.
 Please see pg 166 and copy out the examples from table 1:
1.
2.
3
4.
5.
6.
NERVOUS CONTROL & HOMEOSTASIS
 The central nervous system is made up of the
and
 The
the nerves that relay info between
nervous system are
the central nervous system and the body
 The
nervous system are all of the motor neurons that are under our
Control. Ex.
 The autonomic nervous system is divided further into the
and
Nerves

Nerves prepare the body for

Nerves returns the body to
situation
THE FLIGHT OR FIGHT RESPONSE (pg 176)
1. Which nerve is stimulated when we feel scared or really stressed?
2. What happens to the following systems during these reactions:
a) heart rate:
b) vision:
c) muscles:
3. Define the flight or fight response
4. What is the job of adrenaline? What does it do in our body?
5. What happens when the stressful or scary situation has ended?
after a stressful
FLOW CHART OF THE ENTIRE NERVOUS SYSTMEM:
Sensory
y
Motor