Component
Definition
Role in Learning and Development
Neurons
A neuron is a cell in the brain or another part of the nervous system that transmits information to other cells.
Neuron cells are the information processing components of the brain responsible for receiving and transmitting information. Each part of the neuron plays a role in the communication of information throughout the body.
Neurotransmitters
A neurotransmitter is a chemical substance through which one neuron sends a message to another. Neurotransmitters are transmitters that give off chemical reactions to neurons. There are several types of neurotransmitters and each type controls different functions like muscle control and triggers.
Axon
An Axon is a long, arm like structure that transmits information on to still other neurons. The axon is the elongated fiber that extends from the cell body to the terminal endings and transmits the neural signal. The larger the axon, the faster it transmits information.
Myelin sheath
Myelin sheath is an insulating envelope of myelin that surrounds the core of a nerve fiber or axon and that facilitates the transmission of nerve impulses, formed from the cell membrane of the Schwann cell in the peripheral nervous system and from oligodendroglia cells. Myelin sheaths three main functions include are protection of the nerve fiber, insulation of the nerve fiber and increasing the rate of conduction of nerve impulses.
Dendrites
Dendrites are a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body. Dendrites are treelike extensions at the beginning of a neuron that help increase the surface area of the cell body. These tiny protrusions receive information from other neurons and transmit electrical stimulation to the soma.
Synapses
Synapses are junctions between two nerve cells, consisting of a minute gap across which impulses pass by