Exam 10: Functional Organization of Nervous Tissue

Axon and nerve fiber are interchangeable terms.

Which subdivision of the autonomic nervous system regulates resting or vegetative functions?

Satellite cells and Schwann cells are neuroglia found in the PNS and not the CNS.

If a stimulus reaches threshold, a graded potential occurs.

The enteric nervous system involves the

The area of the neuron cell body that generates the action potential is the

Electrical synapses utilize gap junctions spanned by connexons that allow cell-cell communication.

Which of the following does NOT affect the speed of action potential propagation?

A substance released from neurons that can influence the production of action potentials in the postsynaptic cell is called a(an)

Which of the following is NOT a cause of a graded, local potential?

The continued movement of potassium ions out of the cell through open voltage-gated K⁺ channels is called

What type of summation occurs when two subthreshold potentials add together to produce an action potential?

A neuron pathway with many presynaptic neurons synapsing with one postsynaptic neuron is called a(an)

Collections of myelinated axons in the CNS are called

The magnitudes of action potentials produced by weak and strong stimuli are the same.

Sensory receptors and nerves make up the

What organelle in the neuron is the primary site of protein synthesis?

Which of the following is NOT true of excitatory neurons?

Which function of the nervous system comes from responding to changes in internal and external conditions?

The oligodendrocytes form