Exam 18: Nervous System Cells

The function of the parasympathetic nervous system is commonly described as preparing the body for "fight or flight."

Satellite cells are oligodendrocytes that surround the cell bodies of neurons in the CNS.

Small, lipid-soluble molecules can diffuse easily across the blood-brain barrier.

The afferent pathways of the autonomic nervous system stimulate muscles and do not have a sensory component.

Groups of cell bodies located in the brain or spinal cord are referred to as ganglia.

Describe the somatic and autonomic nervous systems.

All reflex arcs contain an interneuron.

The largest and most numerous types of neuroglia are the:

Explain how a neuron can repair itself. What increases the likelihood of repair; what decreases the likelihood of repair? If repair is not possible, what other options are possible to innervate the effector organ?

Dendrites carry impulses toward the cell body.

Interneurons are found only in the CNS.

The Greek word for tree correctly describes the shape of the axon.

The epineurium is deep to the perineurium.

Neurons have, at best, a limited ability to repair themselves.

Match each part of the nervous system with its corresponding description. -Consists of nerves that lie in the periphery of the nervous system

Oligodendrocytes are found only around dendrites of neurons of the CNS.

Explain the types of reflex arc. Differentiate between a contralateral reflex arc and an ipsilateral reflex arc.

Which is true of a reflex arc?

Which of the following is not a factor in the velocity of nerve impulse conduction?

The nervous system is organized to do which of the following?