1. Biological Bases of Behavior
Unit 3
Biological Bases of Behavior

2. Module 10: Nervous and Endocrine Systems
Do First
Be Aware Of:
Answer the questions on your DF sheet!
Be SURE to label ALL the parts of a neuron!
Unit 3 Test – Friday, 9/22
Unit 3 Vocab Quizzes THIS FRIDAY
Covers Modules 9 and 10

3. NEW! Homework Planner!

4. Module 9 and 10 Objective
SWBAT demonstrate knowledge of neurotransmitters and their role in neural communication SWBAT describe the nervous and endocrine systems, including the divisions of the nervous system and important glands of the endocrine system

5. Module 9 Wrap-Up: Neurotransmitters
Excitatory vs. inhibitory transmitters
Excitatory transmitters – raise the activity of neurons in the body and brain
Inhibitory transmitters – lower or maintain the activity of neurons in the body and brain

13. Module 9 Wrap-Up: Neurotransmitters
How do drugs work on your brain? (More in Unit 5!)
Agonists
A drug that OPENS receptors, allowing more neurotransmitters to cross the synaptic cleft
Ex: heroin, oxycodone, hydrocodone, morphine, opium
Antagonists
A drug that CLOSES receptors, preventing more neurotransmitters to cross the synaptic cleft

14. Module 9 Wrap-Up: Neurotransmitters

15. Module 9 Wrap-Up: Neurotransmitters

16. Module 9 Wrap-Up: Neurotransmitters

17. Agonist versus Antagonists

18. Agonist versus Antagonists

19. Agonist versus Antagonists

20. Agonist versus Antagonists

29. The Nervous System Neuron types: Sensory neurons Motor neurons
Sense things. Detect stimulus inputs such as light (eyes), touch (skin, ear) and chemicals (nose, mouth).
Motor neurons
Move your body, both consciously and unconsciously (reflexes vs. writing with a pencil).
Interneurons
The connections between motor and sensory neurons; largely concentrated in the brain, enables those action potentials and messages to interact.

30. CNS: The Brain – Neural Networks

31. CNS: The Brain – Neural Networks

32. CNS: The Brain – Neural Networks

33. CNS: The Brain – Neural Networks

34. CNS: The Brain – Neural Networks

35. CNS: Spinal Cord – Reacting Quickly.
Not all processing takes place in the brain, and a few milliseconds between awareness of pain and movement can be the difference between life and death.
Thus – reflexes are born out of the sensory neurons in the spinal cord.