Exam 12: Fundamentals of the Nervous System and Nervous Tissue

Some small neurons in the CNS have no axon, only dendrites, and are

All of the neuron's organelles are localized to the cell body.

________ is the term for the previously held belief that fully differentiated neurons could not divide.

Which cells provide the myelin sheath for neurons in the PNS?

Which cells are the macrophages of the CNS?

Figure 12.2 Use the diagrams above to answer the following questions. -Identify which diagram represents cells that produce and circulate cerebrospinal fluid.

White matter is white in color because of ________.

These glial cells surround the cell bodies of sensory neurons within ganglia of the PNS.

Figure 12.2 Use the diagrams above to answer the following questions. -Identify which letter represents an oligodendrocyte.

Vesicles containing neurotransmitters are located in

The complexity of the CNS can be attributed to

A man walking barefoot stepped on a piece of glass. His foot jerked upward in which type of reflex?

Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates the region of a neuron with a name that means "little hill."

Regeneration of peripheral axons requires

Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?

During embryo development, neurons that make "bad" connections

The chemical substance that is released at axon terminals is called a

A neuron is a collection of nerve fibers in the PNS.

________ are chemicals that control the growth of newly forming neurons.

Action potentials travel along the