Exam 11: Functional Organization of Nervous Tissue

Inhibitory postsynaptic potentials (IPSPs) are associated with which of the following?

Each voltage-gated Na⁺ channel has two voltage sensitive gates: an activation gate and an inactivation gate. Which of the following would occur during depolarization?

LouAnn is being treated for a neurological condition with a specific drug that target neurons deep within the brain. Which glial cell must be bypassed by this drug in order for it to be effective?

Which of the following analogies best represents a parallel after-discharge circuit?

Theresa has been diagnosed with a disease that demyelinates the somatic motor neurons. This disease is destroying the ________ associated with neurons that control ________.

Damage to a postsynaptic membrane would

An inhibitory local potential causes which of the following?

Match the following concerning concentration differences across the plasma membrane. -Large molecules trapped inside cell

Identify the characteristics of action potentials. (Check all that apply.)

In a myelinated fiber, only the initial segment in the trigger zone has voltage-regulated channels.

________ are collections of neuron cell bodies located outside of the central nervous system.

When the voltage of a plasma membrane shifts from +35 mV towards 0 mV, the neuron is ________.

Which of the following statements regarding voltage-gated K⁺ channels is true?

Match the following concerning concentration differences across the plasma membrane. -Higher concentration inside cell

In hyperpolarization

A change in resting membrane potential confined to a small area is called a/an ________ potential.

Which type of neural circuit is best for producing a prolonged output?

Identify the functions of the nervous system. (Check all that apply.)

Axons

The speed of an action potential depends on