Search Results for: axon
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
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
Nervous tissue
Nervous Tissue Definition Nerve cells (or neurons) and their associated cells, such as neuroglia cells, make up nervous... Read More
Depolarization
Depolarization is the removal of polarity by a process or action. It might also be used to describe how such activity leads... Read More
Afferent Nerve
Afferent Nerve Definition The word ‘aferent’ means "steering or conducting something towards a destination". The... 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
The Human Nervous System
The nervous system is essentially a biological information highway, and is responsible for controlling all the biological... Read More
Hypothalamic hormone
Definition noun, plural: hypothalamic hormones Any of the various neurohormones produced by specialized neurons in the... Read More
Muscular system
Muscular System Definition What is the muscular system? The muscular system is a system that includes muscle cells and... Read More
Nervous System
THE is the most complicated and highly organized of the various systems which make up the human body. It is the... Read More
Neurohormone
Definition noun, plural: neurohormones Any of the various hormones secreted by neuroendocrine cells Supplement A... Read More
Efferent neuron
Definition noun, plural: efferent neurons A neuron with an axon that carries nerve impulses peripherally, and innervates... Read More
Homeostasis
Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... Read More
Sensory neuron
Definition noun, plural: sensory neurons A type of neuron that transmits sensory nerve impulses Supplement The neurons are... Read More
Neuropodia
Definition (zoology) Plural form of neuropodium, the ventral lobe or branch of a parapodium (neuroanatomy) synaptic... Read More
Vasopressin
Definition noun, plural: vasopressins An antidiuretic peptide hormone produced by the magnocellular and the parvocellular... Read More
Nerve impulse
Definition noun (1) The movement of action potential along a nerve fiber in response to a stimulus (such as touch, pain,... Read More
Telodendron
Definition noun, plural: telodendrons or telodendra Any of the terminal or smaller branches of an axon that terminates with... Read More
Herring body
Definition noun, plural: Herring bodies The neurosecretory terminal of the axons from the hypothalamus and located in the... Read More
Fasciculus of Lissauer
Definition noun A small bundle of fibers situated longitudinally in the white matter, at the entrance of the dorsal root... Read More
Cell Structure
The interior of human cells is divided into the nucleus and the cytoplasm. The nucleus is a spherical or oval-shaped... Read More
Motor neuron
Definition noun, plural: motor neurons A type of neuron connected to a muscle fiber and originates from the central nervous... Read More
Central nervous system
Definition noun The part of the nervous system comprised of the brain, the brainstem, and the spinal cord Supplement In... Read More
Hypothalamus
Definition noun, plural: hypothalami A small region of the forebrain comprised of several small nuclei, located between the... Read More
Interneuron
Definition noun, plural: interneurons (1) Any local circuit neuron of the central nervous system that relays impulses... Read More
Resting potential
Resting Potential Definition The resting potential of a cell is defined as the difference in electrical potential across... Read More
Unmyelinated neuron
Definition noun A neuron in which there is no myelin sheath surrounding the axon. Supplement The unmyelinated neuron... 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
Myelinated nerve
Definition noun A nerve cell in which the axon is surrounded by a layer of Schwann cell membranes of myelin... Read More
Spongioplasm
Definition noun (1) The network or reticulum formed by the fibrils or granules thinly scattered in the cytoplasm. (2) The... Read More