TCC CHAPTER 2 RRV

What is the all-or-none principle in neural firing?

• A neuron either fires completely or does not fire at all.

• A neuron can partially fire depending on the stimulus.

• A neuron only fires if two signals are received at once.

• A neuron fires only during sleep.

Define synapse and reuptake.

• A synapse is the gap between neurons; reuptake is the reabsorption of neurotransmitters by the sending neuron.

• A synapse is a type of neurotransmitter; reuptake is the process of sending signals.

• A synapse is a brain lobe; reuptake is the process of neuron death.

• A synapse is a hormone; reuptake is the process of hormone release.

Which neurotransmitter is tied to movement and reward?

• Dopamine

• Serotonin

• Acetylcholine

• Endorphins

Which neurotransmitter is tied to mood and sleep?

• Serotonin

• Dopamine

• Acetylcholine

• Endorphins

Compare the central nervous system (CNS) and the peripheral nervous system (PNS).

• CNS consists of the brain and spinal cord; PNS includes all other nerves.

• CNS includes only the brain; PNS includes only the spinal cord.

• CNS and PNS are the same.

• CNS controls muscles; PNS controls thoughts.

What are the two divisions of the autonomic nervous system?

• Sympathetic and parasympathetic

• Central and peripheral

• Somatic and sensory

• Motor and sensory

What is the “fight-or-flight” response?

• A physiological reaction to perceived threat, activating the sympathetic nervous system.

• A process of cell division.

• A type of neurotransmitter release.

• A sleep cycle stage.

What is neuroplasticity?

• The brain's ability to change and adapt after injury.

• The process of neuron death.

• The release of hormones.

• The function of the spinal cord.

Which brain structure acts as a relay station for sensory information?

• Thalamus

• Cerebellum

• Amygdala

• Hippocampus

What does the hippocampus do?

• It is involved in memory formation.

• It controls heart rate.

• It regulates hormones.

• It processes visual information.