Histology Testbank: Nervous System 4

Instructions: For each histology question, pick the one best answer. This histology test bank is also useful for the histology questions on the USMLE (USMLE step 1). Click here for answers and detailed explanations.

What is a collection of nerve cell bodies outside of the central nervous system called?
a. Schwann cells
b. Basket cells
c. Ganglion
d. Neuroglia
e. Satellite cells

What percentage of neurons are interneurons?
a. 0.1%
b. 1%
c. 20%
d. 80%
e. 99.9%

What are sensory neurons?
a. Unipolar
b. Pseudounipolar
c. Bipolar
d. Multipolar
e. Both a and b

What is the end of an axon called?
a. Ganglion
b. Perikaryon
c. Astrocyte
d. Nissl
e. Terminal bouton

What is the connective tissue covering around the brain and spinal cord?
a. Meninges
b. Myelinated nerve fibers
c. Cell bodies
d. Nodes of Ranvier
e. Neurofilaments

Which meninx is made of a dense irregular connective tissue?
a. Dura mater
b. Arachnoid
c. Pia mater
d. Both a and b
e. All of the above

What is a group of fibers traveling together?
a. Tracts
b. Islets
c. Soma
d. Cortex
e. Nuclei

Where is white matter?
a. Outer surface of the cerebrum and cerebellum
b. Outer surface of the spinal cord
c. Inner portion of the brain
d. Both a and b
e. Both b and c

Which of the following forms myelin in the central nervous system?
a. Astrocytes
b. Ependymal cells
c. Oligodendrocytes
d. Microglia
e. Schwann cells

What is the primary component of myelin?
a. Amino acids
b. Protein
c. Carbohydrate
d. Lipid
e. Both b and c

Click here for answers and detailed explanations.