REVIEW SESSION BIOLOGICAL BASES OF BEHAVIOR Blindness could result from damage to which cortex and lobe of the brain? Blindness could result from damage to which cortex and lobe of the brain? Paralysis of the left arm might be explained by a problem in the Paralysis of the left arm might be explained by a problem in the Which chemicals pass across the synaptic gap and increase the possibility of the next neuron in the chain will fire? Which chemicals pass across the synaptic gap and increase the possibility of the next neuron in the chain will fire? You eat some bad sushi and feel that you are slowly losing control over your muscles. The bacteria you ingested from the bad sushi most likely interferes with the use of What is brain plasticity? What is brain plasticity? Mr. Spam is a 39 year old male who has been brought into your neurology clinic by his wife. She has become increasingly alarmed by her husbands behavior over the last 4 months. You recommend a CT Scan (CAT Scan) to look for tumors in the brain. Which 2 parts of the brain would you predict are being affected by the tumors? Symptoms: vastly increased appetite, body temperature fluctuations, decreased sexual desire, jerky movements, poor balance, inability to throw objects, and exaggerated efforts to coordinate movements in a task. Mr. Spam is a 39 year old male who has been brought into your neurology clinic by his wife. She has become increasingly alarmed by her husbands behavior over the last 4 months. You recommend a CT Scan (CAT Scan) to look for tumors in the brain. Which 2 parts of the brain would you predict are being affected by the tumors? Symptoms: vastly increased appetite, body temperature fluctuations, decreased sexual desire, jerky movements, poor balance, inability to throw objects, and exaggerated efforts to coordinate movements in a task. In most people which of the following is a specific function of the left hemisphere that is typically not controlled by the right hemisphere? a. producing speech b. control of the left hand c. spatial reasoning d. hypothesis testing e. abstract reasoning How is flushing a toilet like firing a neuron? Use the following terms: Depolarization All or None Principle Direction of Impulse Refractory Period Threshold Resting Potential Action Potential Sodium Potassium Pump Use the following terms: Depolarization All or None Principle Direction of Impulse Refractory Period Threshold Resting Potential Action Potential Sodium Potassium Pump How is Flushing a Toilet like Firing a Neuron? Depolarization-represented by the toilet flushing All or none principle-the toilet either flushes completely or it doesnt flush at all Direction of Impulse- the toilet only flushes one way, the impulse cant come the other way (you hope!) Refractory period- after you flush the toilet, it wont flush again for a certain period of time, even if you push the handle repeatedly Threshold- you can push the handle a little bit, but it wont flush until you push the handle past a certain point. This corresponds to the level of excitatory neurotransmitters that a neuron must absorb before it will fire Resting potential- The toilet is waiting to fire, and the water in the tank represents the over all negative charge inside the neuron waiting for depolarization Action potential- the action potential is represented by opening the flap of the tank and the water suddenly flowing into the bowl Sodium potassium pump- at resting potential, the water is a combination of charged chloride and positively charged potassium. When the toilet is flushed, rapidly sodium, which has not been able to enter the bowl, comes flowing in and pushes the potassium out. During the refractory period, the potassium reenters and the sodium is pushed back in balance and repolarization occurs Define the following terms: Dendrites Cell Body Axon Myelin Sheath Terminal Branches of the Axon/Terminal Buttons (same thing) Neurotransmitters Synapse Define the following terms: Dendrites Cell Body Axon Myelin Sheath Terminal Branches of the Axon/Terminal Buttons (same thing) Neurotransmitters Synapse What comprises the CNS? What comprises the CNS? Tell us about the Sympathetic and Parasympathetic Nervous Systems HindbrainMidbrain MedullaForebrain PonsThalamus CerebellumHypothalamus Amygdala Hippocampus HindbrainMidbrain MedullaForebrain PonsThalamus CerebellumHypothalamus Amygdala Hippocampus LOBES OF THE CEREBRAL CORTEX Parietal Lobe Occipital Lobe Frontal Lobe Temporal Lobe Endocrine System The endocrine system is controlled by the hypothalamus.