What does the Greek root graph mean?
What does the Greek root graph mean?
Graphic Writing There is much to say about the Greek root graph which means ‘to write,’ so let this ‘written’ discourse begin! And a bibliography is a ‘written’ lists of books you’ve used when writing a paper.
What does the Greek root Thermo mean?
before vowels therm-, word-forming element meaning “hot, heat, temperature,” used in scientific and technical words, from Greek thermos “hot, warm,” therme “heat” (from PIE root *gwher- “to heat, warm”).
What does the root Kinesis mean?
The word kinesis is Greek, meaning simply “movement or motion.” Definitions of kinesis.
What is a Kinesis behavior?
Kinesis is the undirected movement in response to a stimulus, which can include orthokinesis (related to speed) or klinokinesis (related to turning). Taxis is the directed movement towards or away from a stimulus, which can be in response to light (phototaxis), chemical signals ( chemotaxis ), or gravity (geotaxis).
What is Karyo?
a combining form meaning “nucleus of a cell,” used in the formation of compound words: karyotin.
What does Kary mean in Greek?
Karyocyte: Any cell that possesses a nucleus. The term “karyocyte” is made up of “kary-” from the Greek “karyon” meaning “nut or kernel” + “-cyte” from the Greek “kytos” meaning a “hollow vessel” = a hollow vessel (a cell) containing a nut or kernel (a nucleus).
What does Reticulo mean?
, reticul- Combining forms meaning reticulum; reticular. [L. reticulum, a small net, dim.
What does sider o mean?
a combining form meaning “iron,” used in the formation of compound words: siderolite.
What is meant by reticuloendothelial system?
Definition. The reticuloendothelial system (RES) removes immune complexes from the circulation in healthy persons, and is formed of phagocytic cells that are found in the circulation and in tissues. Larger immune complexes are removed more quickly from the circulation than smaller immune complexes.
What does Coagul o mean?
Definition: coagulation, clotting. Example: coagulopathy.
Why is clotting important?
Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid part of blood) work together to stop the bleeding by forming a clot over the injury.
Why reticuloendothelial system is important?
The reticuloendothelial system (RES) is a heterogeneous population of phagocytic cells in systemically fixed tissues that play an important role in the clearance of particles and soluble substances in the circulation and tissues.
What organs are part of the reticuloendothelial system?
reticuloendothelial system a network of cells and tissues found throughout the body, especially in the blood, general connective tissue, spleen, liver, lungs, bone marrow, and lymph nodes. They have both endothelial and reticular attributes and the ability to take up colloidal dye particles.
What is role of reticuloendothelial system?
The reticuloendothelial system consists of the various cells of the body that primarily function to remove dead or abnormal cells, tissues, and foreign substances. Both can result in skeletal manifestations, although the primary pathology is in other tissues.
Why is it Reticuloendothelial?
In anatomy the term “reticuloendothelial system” (abbreviated RES), often associated nowadays with the mononuclear phagocyte system (MPS), was originally launched by the beginning of the 20th century to denote a system of specialised cells that effectively clear colloidal vital stains (so called because they stain …
What are Sinusoids?
Sinusoid, irregular tubular space for the passage of blood, taking the place of capillaries and venules in the liver, spleen, and bone marrow. The sinusoids form from branches of the portal vein in the liver and from arterioles (minute arteries) in other organs.
What is phagocytosis?
Phagocytosis is a process by which cells ingest large particles (> 0.5 micrometers) into membrane-bound vesicles called phagosomes, which are then targeted to the lysosomes for enzymatic degradation.
Is phagocytosis good or bad?
Surface phagocytosis may be an important pre-antibody defense mechanism which determines whether an infection will become a disease and how severe the disease will become.
What is phagocytosis give example?
Phagocytosis, process by which certain living cells called phagocytes ingest or engulf other cells or particles. The phagocyte may be a free-living one-celled organism, such as an amoeba, or one of the body cells, such as a white blood cell.
What triggers phagocytosis?
The process of phagocytosis begins with the binding of opsonins (i.e. complement or antibody) and/or specific molecules on the pathogen surface (called pathogen-associated molecular pathogens [PAMPs]) to cell surface receptors on the phagocyte. This causes receptor clustering and triggers phagocytosis.
What is the first step in phagocytosis?
There are a number of distinct steps involved in phagocytosis:
- Step 1: Activation of the Phagocyte.
- Step 2: Chemotaxis of Phagocytes (for wandering macrophages, neutrophils, and eosinophils)
- Step 3: Attachment of the Phagocyte to the Microbe or Cell.
- Step 4: Ingestion of the Microbe or Cell by the Phagocyte.
What will happen next if phagocytosis fails?
When Phagocytosis Fails Although phagocytosis successfully destroys many pathogens, some are able to survive and even exploit this defense mechanism to multiply in the body and cause widespread infection.
What are the different stages of phagocytosis?
Traditionally, the phagocytic process is considered in three stages: (1) attachment of the particle to the cell membrane; (2) interiorisation (phagocytosis); and (3) fusion of the phagocytic vesicle with intracellular lysosomes (digestion).
What are the 5 steps of phagocytosis?
Terms in this set (5)
- Chemotaxis. – movement in response to chemical stimulation.
- Adherence. – attachment to a microbe.
- Ingestion. – engulfing pathogen with pseudopodia wrapping around pathogen.
- Digestion. – phagosome maturation.
- Elimination. – phagocytes eliminate remaining pieces of microbe via exocytosis.
What is the difference between phagocytosis and inflammation?
Phagocytosis is a complex process by which cells within most organ systems remove pathogens and cell debris. Phagocytosis is usually followed by inflammatory pathway activation, which promotes pathogen elimination and inhibits pathogen growth.
What blood cells help fight disease?
White blood cells are also called leukocytes. They protect you against illness and disease. Think of white blood cells as your immunity cells.
Which sign of inflammation is caused by stimulation of nerve endings?
Pain and/or itching (dolor) is caused by direct action on nerve endings of the chemical agents released during inflammation. Images of inflammatory infiltrate in skin.