Unit 2 Biological Bases of Behavior Bellwork Think

Unit 2: Biological Bases of Behavior Bellwork: Think about your effort/engagement and study habits you put forth in unit 1…. Ø Are you pleased with the work you put forth? Why or why not? Ø How would you rate your study habits on a scale from 0 -5 (0 meaning didn’t study at all; 5 meaning studied a few times for the test) Learning Target: Today we analyze results from the first unit test; we will define key unit 2 vocabulary

Unit 1 Test Results: §Only a few people scored an A or B average on the test § Most struggled with the 7 approaches – definitions and application § You are about to receive your tests back § You will need to reflect on each section and make a plan for improvement for the new unit § The tests will be collected back from you; those who haven’t completed the test will need to take it now – purple section will be used for makeup testing today

Unit 2 Vocab Building: ØUsing the chart on the back of your reflection handout, record the following vocabulary definitions ØIn the 3 rd column create an image or word association that will help you remember the meaning of the term

Neurons ØOur brain and nervous system all contain microscopic cells – aka neurons ØThese are the basic building block of the nervous system, responsible for receiving, processing, and transmitting electrochemical information

Axon A long, tube-like structure that conveys impulses away from a neuron’s cell body toward other neurons or to muscles or glands

Myelin Sheath The layer of fatty insulation wrapped around the axon of some neurons that increases the rate at which neural impulses travel along the axon

Neurotransmitters A chemical messenger released by neurons that travels across the synapse and allows neurons to communicate with one another

Pituitary Gland that influences growth and lactation; also discharges many hormones, some of which affect other glands

Medulla Part of the brain that is responsible for vital automatic functions (breathing, heartbeat, etc. )

Cerebellum Part of the brain that coordinates voluntary muscle movement, balance, and some perception and cognition

Amygdala Part of the brain that controls emotions, like aggression and fear, and the formation of emotional memory

Plasticity The brain’s ability to reorganize and change its structure and function throughout the life span

Dopamine Neurotransmitter that helps control the brain's reward and pleasure centers. Dopamine also helps regulate movement and emotional responses, and it enables us not only to see rewards, but to take action to move toward them.

Endorphins A chemical substance in the nervous system similar in structure and action to opiates, involved in pain control, pleasure, and memory

Serotonin Used to transmit messages between nerve cells; it contributes to wellbeing and happiness, among other things. As the precursor for melatonin, it helps regulate the body's sleep-wake cycles and the internal clock.

Exit Slip Explain the function of a neurotransmitter and define one type of neurotransmitter (dopamine, endorphin, or serotonin)