Biological Bases of Behavior Unit 3 Biological Bases of Behavior
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
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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
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
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
Module 9 Wrap-Up: Neurotransmitters
Module 9 Wrap-Up: Neurotransmitters
Module 9 Wrap-Up: Neurotransmitters
Agonist versus Antagonists
Agonist versus Antagonists
Agonist versus Antagonists
Agonist versus Antagonists
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.
CNS: The Brain – Neural Networks
CNS: The Brain – Neural Networks
CNS: The Brain – Neural Networks
CNS: The Brain – Neural Networks
CNS: The Brain – Neural Networks
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.