Neurons

1. Which phrase best describes your entire nervous system?

• a. Extensive and complex
• b. Localized and inefficient
• c. Unicellular and microscopic
• d. Mindless and automatic

Tags

NGSS.HS-LS1-2

2. An impulse traveling through your nervous system is most similar to:

• a. A feather floating on the breeze
• b. A noise traveling through the air
• c. An electric signal traveling through a series of telephone lines
• d. A truck driving down an interstate highway

3. In what way are neurons different from other cells in your body?

• a. Neurons don't have a nuclei; your other cells do
• b. Neurons have cell walls, your other cells don't
• c. Neurons have processes, your other cells don't
• d. Neurons don't contain DNA; your other cells do

4. _________ send information; _________ receive information.

• a. Terminals; dendrites
• b. Somas; impulses
• c. Processes; sheaths
• d. Membranes; myelin sheaths

5. What is the main purpose of the myelin sheaths around your neurons?

• a. They convert chemical signals into electrical signals
• b. They receive information from neighboring neurons
• c. They convert electrical signals into chemical signals
• d. They quicken the speed at which nerve impulses travel

6. Which of the following animals most closely resembles an axon?

• a. anemone
• b. earthworm
• c. sponge
• d. jellyfish

7. Where can you find a synapse?

• a. Inside the nucleus of a neuron
• b. Between a neuron's dendrite and its terminal
• c. Between separate neurons
• d. Surrounding the body of a neuron

8. What is the best synonym for "neurotransmitter?"

• a. Chemical messenger
• b. Electric signal
• c. Impulse receptor
• d. Muscle spasm

9. Where in your body might you find sensory neurons?

• a. Inside your muscles
• b. Inside your mouth
• c. Inside your brain
• d. Inside your stomach

10. What part of a neuron is most similar to the other cells in your body?

• a. The terminal
• b. The axon
• c. The dendrite
• d. The soma