22 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 neuron

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

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

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

Sulfatide

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

Nervous tissue

Definition noun A type of animal tissue comprised principally of nerve cells and neuroglia cells Supplement The four... 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

Valine

valine (Science: amino acid) An essential amino acid. Valine is found in abundant quantities in most food. Valine has a... Read More

Selectively-permeable membrane

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

Medullary Sheath

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

External capsule

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

Axon

Definition noun, plural: axons A long slender fibre of a neuron and is responsible for conducting nerve impulses away from... Read More

Glycoprotein

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

White substance

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