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Test Review Question
Psych Exam 1- Quiz 2
| Question | Answer |
|---|---|
| How does the neuron work | • Dendrites transmits message toward the cell body. However, action potentials travel in one direction; when the cell body signals the cell to fire an action potential, it is generated at the axon hillock and travels down the axon until it reaches the axo |
| What two things are believed to be the cause of depression. | Low levels of serotonin and norepinephrine |
| autonomic nervous system | controls involuntary functions such as bladder contractions, heartbeat and breathing. |
| Someone with a severed spinal cord has | no genital sensations but is still capable of achieving an erection |
| What is the spinal cord responsible for | responsible for controlling reflexes while |
| What is the Brain responsible for | for interpreting sensations |
| What are PET scans used for | useful for detecting brain areas that are active when a person preforms various tasks |
| Damage to the Cerebellum can cause what | results in an inability to walk in a smooth and coordinated manner |
| Damage to the medulla can result in what | is life-threatening as it controls basic life functions such as breathing and heartbeat. |
| What is the reticular formation responsible for | both sleep and wakefullness |
| What is the oldest part of the brain | brainstem |
| What does the amygdala control | aggression and fear and adding emotion to memory (specifically fear and anxiety) |
| When images are flashed to the right visual field, where is projected | left hemisphere |
| What does the left hemisphere control | language and speech |
| When images are flashed to the left visual field, where is projected | the right hemisphere |
| What does the right hemisphere control | non-verbal functions |
| What does damage to the frontal lobe cause | produces mood and personality changes |
| What are Endorphins | are neurotransmitters that have the same chemical properties as opiates like heroin and are linked to pain control. |
| What is the parasympathetic nervous system | is responsible for slowing heart rate and respiration as well as restoring homeostasis in the body. |
| What are finger-like projections that receive messages from sensory receptors or other neurons. | Dendrites |
| What is the all-or-none law | states that a neuron fires or it doesn't |
| Action potential will only be fired when.. | the amount of excitatory minus the amount of inhibitory stimulation exceeds a certain threshold |
| What is an example of plasticity | Changes in the amount of cortical area due to practice |
| Where do neurotransmitters carry messages | from pre- to post-synaptic cells by crossing the snyaptic gap |
| What is the synaptic gap | The gap between the pre- and post-synaptic gap where neurotransmitter carry messages |
| What happens when the electrical potential of the cell changes from -70 millivolts to +40 millivolts. | the neuron fires an action |
| What two things help speed up conduction of neural impulses | myelin sheath and nodes of Ranvier |
| What causes Multiple Sclerosis | Degradation of Mylien Sheath |
| What is the sympathetic nervous system produce | The increase in heart rate and respiration as well as butterflies in your stomach associated with anxiety |
| Monoamine oxidase inhibitors are what | are medications that treat depression by blocking the breakdown of neurotransmitters in the synapse. |
| What are sensory neuron | carry messages from the sense organs (i.e., skin, ears, eyes, etc) to the brain |
| What do motor neurons do | carry messages from the brain to the internal organs and skeletal muscles. |
Created by:
julshock
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