Nervous System Review

Front

What is an Action Potential?

Back

A change in the membrane potential of a cell that is big enough to conduct a nerve impulse.

Front

Which part of the brain is represented by the letter C?

Back

Parietal lobe.

Front

What automatic functions does the brain stem control?

Back

Breathing, heart rate, temperature, alertness, sleep, and swallowing.

Front

What is Resting Membrane Potential?

Back

The voltage that exists across the plasma membrane during the resting state of an excitable cell, typically between -50 to -90 mV.

Front

What structures make up the Brain Stem?

Back

The medulla oblongata, midbrain, and pons.

Front

Define Graded Potential.

Back

A change in the membrane potential that varies in size, unlike the all-or-nothing action potential.

Front

What is the role of the Cerebrum?

Back

Responsible for higher brain functions such as thought, action, and sensory processing.

Front

What is the function of the Meninges?

Back

Protective membranes that cover the brain and spinal cord.

Front

What is the significance of the Threshold in nerve impulses?

Back

The minimum membrane potential that must be reached for an action potential to occur.

Front

What is the difference between the Central Nervous System and the Peripheral Nervous System?

Back

The Central Nervous System consists of the brain and spinal cord, while the Peripheral Nervous System includes all other neural elements.