Exam 12: Fundamentals of the Nervous System and Nervous Tissue

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

All of the following are characteristics of dendrites except that they

During embryo development, neurons that make ʺbadʺ connections

The of a presynaptic neuron associates with the dendrite of a postsynaptic neuron.

The complexity of the CNS can be attributed to

Nearly all somatic sensory neurons are of this type, based on the classification of the type and number of processes.

A somatic motor neuron carries

Which of the following is the correct arrangement of a reflex arc?

This tends to be the longest cytoplasmic projection from a neuron.

is a progressive disease that destroys patches of myelin in both the brain and spinal cord.

Myelin on axons functions to

Figure 12.1 Use the diagram pictured above to answer the following questions. -Identify the letter that indicates a Schwann cell.

These regions of the neuron direct electrical currents toward the cell body.

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

This region of the neuron contains a single nucleus surrounded by cytoplasm.

Most tumors in the brain originate from

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 ʺlittle hill.ʺ

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

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

Which of the following statements concerning sensory neurons is incorrect?