Psychology Test (No letters) Flashcards
Which of the following divisions of the nervous system are subdivision(s) of the autonomic nervous system?
- The somatic nervous system only
- The sympathetic nervous system only
- The parasympathetic nervous system only
- The somatic, sympathetic, and parasympathetic nervous systems are all part of the autonomic nervous system.
- The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system but not the somatic nervous system.
The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system but not the somatic nervous system.
Ion channels that are opened or closed depending on the binding of a neurotransmitter, like a key fitting into a lock, are called:
- Voltage-gated ion channels
- Chemically gated ion channels
- Molecule-gated ion channels
- Mechanical-gated ion channels
- Locked-gated ion channels
Chemically gated ion channels
Which of the following ions does NOT play a major role in how neurons send electrical signals down the axon, causing the release of neurotransmitters?
- Sodium (Na+)
- Potassium (K+)
- Calcium (Ca++)
- Hydrogen (H+)
- None of the above are true.
Hydrogen (H+)
Thomas took too much heroin and was overdosing. A paramedic quickly administered naloxone. Naloxone kicks out heroin and prevents it from binding to opioid receptors. It also blocks the receptor from being activated. In other words, naloxone hinders the function of our endogenous (internal) opioid system. Therefore, naloxone acts as an opioid:
- Antagonist
- Agonist
- Facilitatory
- Competitor
- Rival
Antagonist
The corpus callosum is
- One of the main structures of the limbic system.
- A small cluster of neurons in the hypothalamus that regulates sex hormones.
- A large tract of myelinated axons that sends signals between the two hemispheres of the brain.
- The spring connective tissue in the meninges that helps protect the brain.
- The structure that connects the thalamus to the occipital lobe, which relays visual information.
A large tract of myelinated axons that sends signals between the two hemispheres of the brain.
Since curare interferes with acetylcholine functioning, we would assume it is a(n)
- Agonist.
- Antagonist.
- Substance that destroys neurons with acetylcholine receptors.
- Toxin released by neurons that binds to acetylcholine receptors.
- Inhibitory neurotransmitter
Antagonist.
The effect of the botulism toxin (also known as Botox) on acetylcholine is to
- Increase the amount of acetylcholine available.
- Inhibit the release of acetylcholine from the terminal buttons.
- Destroy acetylcholine within the synapse.
- Prevent the production of acetylcholine in the vesicles.
Inhibit the release of acetylcholine from the terminal buttons.
Which of the following subcortical structures plays an important role in fear processing?
- Hypothalamus
- Hippocampus
- Amygdala
- Basal ganglia
Amygdala
Which of the following structures is important for experiencing reward?
- Frontal lobe of the cerebral cortex
- Nucleus accumbens of the basal ganglia
- Frontal lobe of the basal ganglia
- Nucleus accumbens of the cerebral cortex
Frontal lobe of the basal ganglia
Cocaine causes dopamine to remain at the site of the synapse longer than it normally would, therefore inhibiting the ________ of dopamine.
- Recycling
- Reabsorption
- Reuse
- Reuptake
Reuptake
Which of the following terms refers to a substance that enhances or mimics the effect of a neurotransmitter by binding to and activating its receptor?
- Antagonist
- Inhibitor
- Agonist
- Blocker
- Reuptake inhibitor
Agonist
