Module A-1 Cytology of neurons practice questions (notes)

1. Mircotubules are the essential stationary tract used for what type of axonal transport?

   A. Fast anterograde axonal transport

   B. Slow axonal transport

   C. Fast retrograde transport

   D. All of them above

   E. A and C

E.

2. Somatic efferent (motor neurons) fibers are classified as

   A. Unipolar cells

   B. Bipolar cells

   C. Pseudo-unipolar cells

   D. Multipolar cells

D.

3. In most neurons, the cell body represent what percent of the cell’s total volume?

   A. 10%

   B. 30%

   C. 50%

   D. 70%

A

4. Astrocytes serves the following with the exception of :

   A. Buffering function by take up certain neurotransmitters from the synaptic area

   B. Nutritive function

   C. Buffering function by taking up excess K+ released during high activity act as scavengers and remove neuronal debris

   D. None of the above since all are functions of Astrocytes

D

5. What functional type of neuron is most prevalent in the vertebrate nervous system?

   A. Afferent and efferent neurons

   B. Interneurons

   C. Glial cells

   D. Renshaw cells

B.

6. The motor molecule responsible for fast anterograde axonal transport is:

   A. Myosin

   B. Actin

   C. Kinesin

   D. Tropomyosin

   E. Dynein

C.