What part of an overhead projector would be most like the myelin found in the brain?

What part of an overhead projector would be most like the myelin found in the brain?
 
  a. The insulation covering the extension cord, as this insulation helps transmit the electrical energy more efficiently
  b. The light bulb, as myelin becomes highly active when it receives energy
  c. The reflecting mirror, as the purpose of myelin is to reflect away neurotransmitters
  d. The long arm holding up the reflecting mirror, as the main function of the myelin is as a conduit through which electrical chemical energy flows within the neuron

Question 2

If a cell is experiencing myelination, it is
 
  a. migrating into its proper place in the brain.
  b. dividing uncontrollably.
  c. developing a fatty covering encasing its axon.
  d. releasing neurotransmitters.

Question 3

Myelin is important to the nervous system because it
 
  a. transmits neural impulses from the brain to the body.
  b. directs the release of hormones from the endocrine glands.
  c. increases the transmission speed of neural impulses.
  d. is where memories are stored.

Question 4

Neurons communicate with one another
 
  a. by releasing neurotransmitters into the synapse.
  b. by releasing hormones from the hypothalamus.
  c. through the pituitary gland.
  d. using androgens.

Question 5

The statement, I am just a gap between neurons, best describes a
 
  a. dendrite.
  b. axon.
  c. synapse.
  d. gland.

Question 6

The basic cellular unit of the nervous system is the
 
  a. dendrite.
  b. axon.
  c. synapse.
  d. neuron.

Question 7

During middle adulthood, the most likely impact of thyroid hormones would be to
 
  a. generate growth spurts.
  b. help metabolize food.
  c. create myelin.
  d. drain reserve capacity.