Psych 2000 Tucker LSU Exam 1
Questions and Answers 100% Pass
What is a neuron? - ✔✔basic cell that sends and receives messages throughout body
What is the structure of a neuron and what does each part do? (4 parts) - ✔✔1.
dendrites: receive messages
2. soma (cell body): keeps cell alive
3. axons: carry neural message to other cells
4. axon terminal: neurotransmitter released
What is the process of a neuron being fired? - ✔✔Resting potential: negative on inside,
positive on outside
Stimulated
Action Potential: sodium ions enter cell
(depolarizing during action potential)
What causes Parkinson's disease? - ✔✔Not enough dopamine- too much can cause
Schizophrenia
Brittie Donald, All Rights Reserved © 2025 1
, What is an agonist? - ✔✔mimic or enhance effects of neurotransmitter
Neurotransmitter that stimulates muscles, helps with memory, plays role in arousal and
attention - ✔✔ACh- Acetylcholine
What is an antagonist? - ✔✔Inhibits, blocks, reduces effects
Neurotransmitter that influences mood and regulates food intake; depression -
✔✔Serotonin
Neurotransmitter important to movement and to frontal lobe activity; schizophrenia -
✔✔Dopamine
Major inhibitory neurotransmitter- lots released when drinking - ✔✔GABA
Which neurotransmitter is cleared out by enzymes instead of going through reputake? -
✔✔ACh
What makes up the CNS? - ✔✔Brain and Spinal Cord
How is the CNS different from the PNS - ✔✔It is more about receiving and responding
rather than sensing initially, not in the whole body
What are the subdivisions of the PNS? - ✔✔Somatic and Autonomic
Brittie Donald, All Rights Reserved © 2025 2
Questions and Answers 100% Pass
What is a neuron? - ✔✔basic cell that sends and receives messages throughout body
What is the structure of a neuron and what does each part do? (4 parts) - ✔✔1.
dendrites: receive messages
2. soma (cell body): keeps cell alive
3. axons: carry neural message to other cells
4. axon terminal: neurotransmitter released
What is the process of a neuron being fired? - ✔✔Resting potential: negative on inside,
positive on outside
Stimulated
Action Potential: sodium ions enter cell
(depolarizing during action potential)
What causes Parkinson's disease? - ✔✔Not enough dopamine- too much can cause
Schizophrenia
Brittie Donald, All Rights Reserved © 2025 1
, What is an agonist? - ✔✔mimic or enhance effects of neurotransmitter
Neurotransmitter that stimulates muscles, helps with memory, plays role in arousal and
attention - ✔✔ACh- Acetylcholine
What is an antagonist? - ✔✔Inhibits, blocks, reduces effects
Neurotransmitter that influences mood and regulates food intake; depression -
✔✔Serotonin
Neurotransmitter important to movement and to frontal lobe activity; schizophrenia -
✔✔Dopamine
Major inhibitory neurotransmitter- lots released when drinking - ✔✔GABA
Which neurotransmitter is cleared out by enzymes instead of going through reputake? -
✔✔ACh
What makes up the CNS? - ✔✔Brain and Spinal Cord
How is the CNS different from the PNS - ✔✔It is more about receiving and responding
rather than sensing initially, not in the whole body
What are the subdivisions of the PNS? - ✔✔Somatic and Autonomic
Brittie Donald, All Rights Reserved © 2025 2
