Nervous System

Front

What are the 2 major divisions of the peripheral nervous system (PNS)?

Back

Sensory & Motor

Front

What part of a neuron receives information from other neurons?

Back

Dendrites

Front

What carries signals from tissues and organs to the brain and spinal cord?

Back

Sensory Neurons

Front

Sensory neurons carry nerve impulses from the sense organs and internal organs to the?

Back

Central Nervous System (CNS)

Front

What does the letter 'H' represent in a labeled neuron diagram?

Back

Axon Terminal

Front

What is the function of the myelin sheath?

Back

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

Front

What are the two types of motor neurons?

Back

Somatic and Autonomic motor neurons.

Front

What is the role of glial cells in the nervous system?

Back

To support and protect neurons.

Front

What is the difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?

Back

CNS consists of the brain and spinal cord; PNS consists of all other neural elements.

Front

What is an action potential?

Back

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