Exam 15: Histology of Nervous Tissue

Groups of axons within a nerve are bound into fascicles by a coarse connective tissue called .

You have lost the sensation, but not movement, in one of your hands due to a problem with your spinal cord neurons. Based upon these symptoms, what type of neuron was most likely affected?

The forms synapses, or junctions, with other neurons or effector cells.

Cell bodies of these neurons lie in ganglia in the peripheral nervous system (PNS).

These neurons transmit impulses from CNS to effectors.

The outermost connective tissue covering of a nerve is called the .

These glial cell line cerebrospinal fluid-filled cavities in the CNS.

Oligodendrocytes form myelin around .

The gaps in the sheath that insulates axons are called .

Chromatophilic substance, found within the cell bodies of neurons, is involved in the metabolic activities of the cell and is composed of _.

These glial cells play a role in capillary-neuron exchanges and control the chemical environment around neurons.

Sensory or afferent neurons are typically of this type.

A nerve ________.

The formation of myelin in the peripheral nervous system is accomplished by these cells.

Myelin is important in .

You are examining a neuron under the microscope. It appears as a round cell without visible processes. What is true of this neuron?

At an axon terminal, the electrical signal from one cell .

This part of the neuron generates and conducts action potentials.

What is true of a mixed nerve?

Interneurons (association neurons) in the brain are likely to be neurons.