45. Nervous System

Which of the following actions allows for repolarization of a neuron?

The space between the axon of one neuron and the dendrite of another neuron is called a(n) _____.

In an action potential, which event occurs first after a neuron reaches threshold?

An action potential is self-regenerating because:

The neurons from the left primary motor cortex control the skeletal muscles on the:

What effect does increasing the extracellular potassium concentration have on the resting membrane potential of a neuron?

Which structures connect neurons, and which chemicals are primarily responsible for communication between neurons at these connections?

Which of the following sequences correctly describes the order of events during the generation of an action potential in a neuron?

Which of the following best describes how neurons convey information using both electrical and chemical signals?

Which type of neuron-like cells release their secretions directly into the bloodstream?

A nerve is _______.

Which of the following correctly lists the main steps of an action potential in a neuron, in the correct order?

How is depolarization in a hair cell different from depolarization in a typical neuron?

Which of the following best describes the primary function of dendrites in a neuron?

Which statement correctly describes what causes the second voltage-gated Na$^+$ channel to open during an action potential?