HBS Unit 2 Review

Front

What does the neuron's nucleus do?

Back

Controls the actions of the neuron.

Front

Which channels opening leads to the depolarization of a neuron?

Back

Na+ channels open.

Front

What is the function of axon terminals?

Back

Send information to the next cell.

Front

What is the correct path that a nerve impulse follows in a reflex arc?

Back

Sensory neuron → interneuron → motor neuron.

Front

What is the primary function of the frontal lobe?

Back

Involved in reasoning, planning, problem-solving, and emotional regulation.

Front

What role do K+ channels play in neuron function?

Back

They help return the neuron to its resting potential after depolarization.

Front

What is the myelin sheath?

Back

A fatty layer that insulates axons and speeds up electrical signals.

Front

What is a synapse?

Back

The junction between two neurons where information is transmitted.

Front

What is the role of neurotransmitters?

Back

Chemicals that transmit signals across a synapse from one neuron to another.

Front

What is the difference between sensory neurons and motor neurons?

Back

Sensory neurons carry signals to the central nervous system; motor neurons carry signals away from it.