BIO: Nervous System

Front

What is the myelin sheath?

Back

The myelin sheath is an insulating layer that forms around the axon of a neuron, enabling electrical signals to travel faster.

Front

What is the purpose of the myelin sheath on the axon?

Back

The purpose of the myelin sheath is to improve the conductivity of electrical signals along the axon.

Front

What is a synapse?

Back

A synapse is the tiny gap between neurons where nerve impulses are transmitted from one neuron to another.

Front

What part of the neuron takes information away from the cell body?

Back

The axon takes information away from the cell body.

Front

What part of a neuron receives impulses from the cell body?

Back

The dendron receives impulses from the cell body.

Front

What is the function of dendrites?

Back

Dendrites are extensions of a neuron that receive signals from other neurons and transmit them to the cell body.

Front

What is the role of neurotransmitters?

Back

Neurotransmitters are chemical messengers that transmit signals across the synapse from one neuron to another.

Front

What is the cell body of a neuron?

Back

The cell body is the part of the neuron that contains the nucleus and organelles, and it integrates incoming signals.

Front

What is an axon terminal?

Back

An axon terminal is the endpoint of an axon where neurotransmitters are released to communicate with other neurons.

Front

What is the function of Schwann cells?

Back

Schwann cells are glial cells that form the myelin sheath around axons in the peripheral nervous system.