The Endocrine System

vs. The Nervous

System

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

• 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

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

Review

So basically…

The Nervous System is a sprinter.

The Endocrine System is a long distance runner.

• 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!

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

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