Anatomy & Physiology Nervous System Review

Front

What is the insulating membrane that surrounds parts of the axon that helps to protect & propagate action potential?

Back

Myelin Sheath

Front

What is the largest structure of the brain that is 2/3 of brain mass?

Back

Cerebrum

Front

What is the functional unit of the nervous system?

Back

Neuron

Front

Which ions are involved in the electrical nerve impulse?

Back

Potassium and Sodium

Front

The nervous system is composed of which three main components?

Back

Brain, Spinal Cord, Nerves

Front

What part of the brain is responsible for coordination and balance?

Back

Cerebellum

Front

What is the role of dendrites in a neuron?

Back

To receive signals from other neurons.

Front

What is the primary function of the myelin sheath?

Back

To insulate axons and increase the speed of nerve impulse transmission.

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 the nerves outside the central nervous system.

Front

What is an action potential?

Back

A rapid rise and fall in voltage or membrane potential across a cellular membrane.