Psych. Ch. 3 pgs 66-72

What is the function of the Node of Ranvier in a neuron?

• To generate action potentials

• To speed up signal transmission

• To release neurotransmitters

• To insulate the axon

What is released into the synapse by terminal buttons?

• Hormones

• Neurotransmitters

• Enzymes

• Proteins

How does the action potential travel down the axon?

• In a continuous wave

• By jumping from node to node

• By diffusing through the axon

• By reversing direction

What is the significance of the myelin sheath in the nervous system?

• It decreases communication speed

• It enables rapid communication

• It has no significance

• It blocks communication

Endorphins are released in response to which of the following behaviors?

• Sleeping

• Eating spicy foods

• Dreaming

• Learning

Which neurotransmitter is released by the brain's reward system?

• Serotonin

• Acetylcholine

• Dopamine

• Endorphins

Acetylcholine is used in the brain to regulate which of the following?

• Appetite

• Emotion

• Memory

• Pain

What did Cajal confirm anatomically about neurons?

• A narrow gap separates one neuron from another

• Neurons merge into one another

• Neurons are identical

• Neurons are connected by tissue

What was the Nobel Prize awarded to Cajal and Golgi for?

• Their work on the structure of the nervous system

• The discovery of DNA

• The invention of the microscope

• The theory of relativity

What did Cajal's work confirm about nerve cells?

• They remain separate

• They are identical

• They merge together

• They are connected by tissue