What is effector cells in biology?
Listen to pronunciation. (eh-FEK-ter sel) A cell that performs a specific function in response to a stimulus; usually used to describe cells in the immune system.
What does a effector do?
Effectors are parts of the body – such as muscles and glands – that produce a response to a detected stimulus. For example: a muscle contracting to move an arm.
What is the effector stage?
At this point, the immune response is in a phase termed “the effector phase.” This term refers to the processes directly involved in effecting protection against the danger in question—pathogen, toxin, or other foreign substance considered by the immune system recognition processes as presenting a danger to the host.
What are effector systems?
Those organ systems of the animal body which mediate overt behavior. Injury to an effector system leads to loss or to subnormal execution of behavior patterns mediated by the system, conditions termed paralysis and paresis, respectively. Overt behavior consists of either movement or secretion.
What is effector neuron?
effector neuron A nerve cell, such as a motor neuron, that transmits impulses from the central nervous system to an effector in order to bring about a physiological response to changes in the environment. A Dictionary of Biology.
What is an immune response and what is the effector cell involved?
Cells of the adaptive immune system (also called immune effector cells) carry out an immune function in response to a stimulus. Natural killer T lymphocytes and B lymphocytes are examples of effector cells. For example, activated T lymphocytes destroy pathogens via cell-mediated response.
What are effector organs biology?
An effector is a muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse. An effector brings about an action (e.g. a muscle action or glandular secretion) as a result of a stimulus it receives.
What is the best definition for an effector?
Effector definition A muscle, gland, or organ capable of responding to a stimulus, especially a nerve impulse. noun.
What is effector science definition?
Definition of effector 2a : a bodily tissue, structure, or organ (such as a gland or muscle) that becomes active in response to stimulation Nerve cells (neurons) convey messages by electrical pulses that pass down the nerve fiber (axon) until they reach the junction with the next neuron or an effector such as a muscle.
What is effector cell in immunology?
In the immune system, effector cells are the relatively short-lived activated cells that defend the body in an immune response. Effector B cells are called plasma cells and secrete antibodies, and activated T cells include cytotoxic T cells and helper T cells, which carry out cell-mediated responses.
What is an effector in biochemistry?
(December 2009) In biochemistry, an effector molecule is usually a small molecule that selectively binds to a protein and regulates its biological activity. In this manner, effector molecules act as ligands that can increase or decrease enzyme activity, gene expression, or cell signaling.
What is diffusion in biology?
Diffusion Definition “Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.” Read on to explore what is diffusion and the different types of diffusion.
What are effector cells and how do they work?
These are the cells that mount specific responses in case of stimulus. The body’s immune system produces effector cells as a part of the immune response against pathogen or self cell, (in case of autoimmune disorders). Under pathogen attack, the immune cell undergoes differentiation, leading to the effector cell and memory cell production.
What are the factors that affect diffusion?
Temperature, area of interaction, size of the particle and the steepness of the concentration gradient are all factors that affect the process of diffusion. 9. State the significance of diffusion. Diffusion is a very important process occurring in all living beings.