Lesson 4 - Endocrine system v the nervous system

1. The Endocrine
System
vs.
The Nervous
System

2. 2
• Network of glands that secrete chemicals
called hormones to help your body respond to
stimuli.
• Chemical Messenger: hormones
• Slow acting hormones made far away from
target cells travel through blood
• Long lasting changes to the body
Overview of the Endocrine System

3. • This communication system controls and
coordinates functions throughout the body and
responds to internal and external stimuli.
• Chemical Messenger: neurotransmitters
• Fast electrical action potentials
• Signals travel along neurons via
neurotransmitters
• Short-acting changes to the body
Overview of the Nervous System

4. • In your notebook draw a Venn diagram to
compare and contrast the similarities and
differences of the endocrine system and the
nervous system.
Review

5. So basically…
The Nervous System is a
sprinter.
The Endocrine System is a
long distance runner.

6. • Team up with your table group
• When I read the example, guess within your
table group if the nervous system or the
endocrine system is regulating the response.
• You must be able to explain your reasoning!
• Slap your table when you have the correct
answer and explanation.
• There is a prize for the winning team!
Game Time!

7. Finally…Exit Slip
• Let’s go back to your Venn Diagrams,
compare the one in your notes to the
one on the next slide and make changes
accordingly

8. Glands vs. Nerves
Endocrine System
• System of glands
• Hormones are
transmitted through
blood stream
• Slow, but chemical
response lasts longer
Nervous System
• Signals travel along
neurons via
neurotransmitters
• Fast electrical action
potentials
• Short-acting changes
to the body
• Chemical
messengers
• Feedback
loops
• Regulate
physiological
activities to
maintain
homeostasis
• Respond to
stimuli