24 results found

Search Results for: myelin

Myelin

Definition noun A substance comprised mainly of fatty material (about 80%) and proteins (about 20%), and forms the myelin... Read More

Unmyelinated nerve

Definition noun A nerve that is bare or without the myelin sheath around the axon. Supplement The unmyelinated nerve... Read More

Unmyelinated neuron

Definition noun A neuron in which there is no myelin sheath surrounding the axon. Supplement The unmyelinated neuron... Read More

Axon

What Is Axon? An axon is a thin, long fiber of a nerve cell (or neuron). It transmits electrical impulses from the cell... Read More

Myelinated nerve

Definition noun A nerve cell in which the axon is surrounded by a layer of Schwann cell membranes of myelin... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Myelinated neuron

Definition noun A neuron in which the axon is enveloped by a layer of Schwann cell membranes (sheath). Supplement The myelin... Read More

Sulfatide

Definition noun, plural: sulfatides A cerebroside sulfuric ester containing one or more sulfate groups in the sugar portion... Read More

Nervous tissue

Nervous Tissue Definition Nerve cells (or neurons) and their associated cells, such as neuroglia cells, make up nervous... Read More

The Central Nervous System

Myelin Sheath Myelin is a substance that forms the myelin sheath associated with nerve cells. This sheath is a layer of... Read More

Axon hillock

Axon Hillock Definition What is axon hillock? If you are familiar with the different parts of the neuron, the axon hillock... Read More

Neurilemma

Neurilemma Neurolemma (also neurilemma and sheath of Schwann) is the outermost layer of nerve fibers in the peripheral... Read More

Afferent Nerve

Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... Read More

Medullary Sheath

A layer of myelin encasing (and insulating) the axons of medullated nerve... Read More

White substance

white substance --> white matter (Science: anatomy) brain tissue composed of myelin-coated nerve cell fibres. White... Read More

Cholesterol

Definition noun A sterol or a modified steroid that is synthesized by animal cells to become an essential component of... Read More

Selectively-permeable membrane

Selectively Permeable Membrane Definition We can define selectively permeable membranes as those that are selectively... Read More

External capsule

Definition noun (anatomy) A thin, white sheet of whiter matter fibers in the brain between the putamen and... Read More

Enzyme

An enzyme is a biomolecule that can be synthesized biologically (naturally occurring) or through other processes... Read More

Axon terminal

An axon terminal is any of the button-like endings of axons through which axons make synaptic contacts with other nerve... Read More

Fields of forel

Fields of forel three circumscript, myelin-rich regions of the subthalamus known as h fields (from Haubenfelder); 1) field... Read More

Glycoprotein

Definition noun, plural: glycoproteins Any of the conjugated proteins, characterized by having one or more... Read More

Valine

Amino acids are categorized into two groups based on the capability of the human body to synthesize them; essential and... Read More

Dendrite

Dendrite Definition Dendrites are the protoplasmic projections from the neuron cells that receive the electrochemical... Read More