Question

1 multiple choice 10 points
what is the name of the substance which helps insulate the internodes of a neurons axon?
myelin
dentrite
perikaryon
axon hillocks
2 multiple choice 10 points
what part of your brain is firing more than it usually does when you are experiencing strong fear or aggression/anger?
amygdala
thalamus
medulla oblongatta
occipital lobe

Explanation:

Question 1

To solve this, we analyze each option:

• Myelin: A fatty substance that insulates the axon's internodes, speeding up signal transmission.
• Dendrite: Receives signals, not an insulator.
• Perikaryon: The cell body, not an insulator.
• Axon hillocks: Initiates action potentials, not an insulator.

So the correct answer is the option with Myelin.

Analyzing each option:

• Amygdala: Associated with emotions like fear and aggression.
• Thalamus: Relays sensory/motor signals, not emotion - fear/aggression.
• Medulla Oblongatta: Controls vital functions, not emotion - fear/aggression.
• Occipital lobe: Processes visual information, not emotion - fear/aggression.

So the correct answer is the option with amygdala.

Answer:

A. Myelin (assuming the first option is labeled A, adjust identifier if needed)

Question 2